Clinical trial to determine whether the timing of tranexamic acid administration influences perioperative bleeding in total knee arthroplasty | Revista Española de Anestesiología y Reanimación (English Edition)

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Luis, A. Pardo, C.E. Moreno, C. Teixell, X. Santiveri, E. Bisbe" "autores" => array:6 [ 0 => array:4 [ "nombre" => "C." "apellidos" => "Luis" "email" => array:1 [ 0 => "61307@parcdesalutmar.cat" ] "referencia" => array:2 [ 0 => array:2 [ "etiqueta" => "a" "identificador" => "aff0005" ] 1 => array:2 [ "etiqueta" => "*" "identificador" => "cor0005" ] ] ] 1 => array:3 [ "nombre" => "A." "apellidos" => "Pardo" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "a" "identificador" => "aff0005" ] ] ] 2 => array:3 [ "nombre" => "C.E." "apellidos" => "Moreno" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "a" "identificador" => "aff0005" ] ] ] 3 => array:3 [ "nombre" => "C." "apellidos" => "Teixell" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "a" "identificador" => "aff0005" ] ] ] 4 => array:3 [ "nombre" => "X." "apellidos" => "Santiveri" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "a" "identificador" => "aff0005" ] ] ] 5 => array:3 [ "nombre" => "E." 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Transfusion is an independent risk factor for morbidity and mortality<a class="elsevierStyleCrossRef" href="#bib0010">2</a>, and is associated with an increased risk of postsurgical infections and thromboembolic events, which prolong hospital stay<a class="elsevierStyleCrossRef" href="#bib0015">3</a>. Patient Blood Management (PBM) is an evidence-based bundle of care to improve patient outcomes by managing and preserving the patient’s own blood. The second pillar of PBM includes strategies to reduce blood loss<a class="elsevierStyleCrossRefs" href="#bib0020">4–7</a>.One of the most effective methods for minimising bleeding and transfusions in TKA is the use of perioperative antifibrinolytic drugs, such as tranexamic acid (C8H15NO2) (TXA)<a class="elsevierStyleCrossRefs" href="#bib0040">8,9</a>. TXA blocks the binding site of plasminogen to fibrin and prevents clot lysis. Several clinical trials have provided evidence of its effectiveness and safety<a class="elsevierStyleCrossRef" href="#bib0050">10</a>, especially in cardiac and major orthopaedic surgery<a class="elsevierStyleCrossRefs" href="#bib0055">11–13</a>, so it is recommended in procedures such as TKA, total hip arthroplasty (THA) and spinal surgery<a class="elsevierStyleCrossRef" href="#bib0035">7</a>. Both intravenous and topical administration have proven effective and safe in TKA<a class="elsevierStyleCrossRef" href="#bib0070">14</a>. The side effects and the antifibrinolytic and anti-inflammatory effects of TXA are most likely dose-related. If the TXA dose is repeated, the second dose is usually given at 3h, which is the elimination half-life of the drug<a class="elsevierStyleCrossRef" href="#bib0075">15</a>. The optimal dose and timing of TXA administration, as well as its mechanism of action and pharmacokinetics, require further study<a class="elsevierStyleCrossRef" href="#bib0080">16</a>.Administering TXA at the beginning of the intervention could prevent the onset of fibrinolysis and reduce bleeding during surgery<a class="elsevierStyleCrossRef" href="#bib0065">13</a>. However, in surgery with tourniquet, some anaesthetists prefer to administer TXA just before tourniquet release, since that is the time of greatest fibrinolysis and onset of bleeding. Moreover, the administration of TXA at the end of surgery could reduce the risk of intraoperative thrombosis and provide an additional hour of postoperative antifibrinolysis<a class="elsevierStyleCrossRefs" href="#bib0080">16,17</a>. We found only 1 clinical trial comparing different timings of TXA administration in TKA with tourniquet. In the group that received preoperative TXA, blood loss and transfusion requirements were slightly lower than in the group receiving TXA before tourniquet release, but not significantly so. The number of cases may have been insufficient to show significant differences between the groups<a class="elsevierStyleCrossRef" href="#bib0090">18</a>. The ideal time for administration of a single dose of TXA in TKA surgery is still unclear, and more studies are needed.According to some publications, administering 2 doses of TXA might be more effective than a single dose. The above-mentioned study showed that 2 doses of TXA are more effective in reducing blood loss and maintaining higher postoperative haemoglobin (Hb) levels, but differences in transfusion requirements were not significant<a class="elsevierStyleCrossRef" href="#bib0090">18</a>. In another recent study, more patients required transfusion in the group that received a single preoperative dose of TXA vs the group that received 2 doses (13.5% vs 5.7%, respectively), but there were no differences in drain output or postoperative Hb levels. The study, however, had important limitations, as it was a retrospective study and the baseline characteristics of the patients were not described<a class="elsevierStyleCrossRef" href="#bib0095">19</a>.The main aim of our study was to determine whether the timing of TXA administration in TKA with tourniquet influences perioperative bleeding, transfusion, and complications. Our secondary aim was to determine whether a second dose of TXA has a significant clinical impact on outcomes.Materials and methodsStudy design and settingThe study was approved by an independent Ethics Committee: CEIC-Parc de Salut MAR (Clinical Research Ethical Committee, Parc de Salut MAR), Barcelona, Spain on January 7th 2016, registered with the EU Clinical Trials Register (EudraCT 2016-000071-24), and was conducted in accordance with the Declaration of Helsinki. Written informed consent was obtained from all participants prior to surgery.TRANEXTIME is a single-centre, prospective, randomised, double-blind, four-arm parallel-group, placebo-controlled clinical trial evaluating the effect of the timing of TXA administration (at induction or just before tourniquet release) on perioperative bleeding in TKA, and the clinical relevance of a second dose of TXA.Patient populationWe enrolled adults, aged 18 years and over, scheduled for elective primary unilateral cemented TKA between April 2016 and May 2018 in Hospital del Mar.All study patients were adults scheduled for primary TKA with tourniquet, and all signed a consent form.Patients were excluded if they had a history of arterial or venous thrombosis, pulmonary thromboembolism, atrial fibrillation, chronic kidney disease (GFR <40mm), epilepsy (convulsions in the preceding year), congenital or acquired coagulation disorder (including patients taking anticoagulants or antiplatelet drugs), allergy or hypersensitivity to TXA or any of the excipients of the study medication. Women who were pregnant or possibly pregnant were also excluded.After attending the pre-anaesthesia consultation around 1 month before surgery, all patients with anaemia (Hb less than 13g/dl) were enrolled in a preoperative Hb optimisation programme, so that their Hb levels had been normalised at the time of surgery. The anaesthesia technique was decided by the anaesthesiologist on the day of the surgery, based on the characteristics of each patient.In the recovery room, sciatic and femoral nerve block were performed for postoperative pain management. Drainage tubes were placed in all patients to collect shed blood, and all received daily prophylactic Bemiparin (3500mg) to prevent thromboembolic events.Mean hospital stay was 5 days.Study objectivesThe main objective of the study was to determine whether administering TXA at anaesthesia induction for TKA rather than 30min before tourniquet release had any effect on bleeding and outcomes. TXA was administered intravenously, as this is route commonly used in our hospital.The secondary objective was to evaluate the clinical impact of a second dose of TXA (3h after surgery) on outcomes (bleeding, haemoglobin, allogeneic blood transfusion, and complications).OutcomesThe primary outcome was postoperative blood loss collected from a drainage tube measured in millilitres (ml) (total amount of blood in the drain until withdrawal), and total blood loss calculated using the Gross formula: uncompensated erythrocyte loss=total blood volume (ml)×(preoperative haematocrit [HCT]−HCT on the fourth day after surgery).Secondary outcome variables included: changes in Hb and reported incidence of venous thromboembolism and pulmonary embolism (only clinically relevant episodes were recorded), myocardial infarction, transient ischemic attack, ischemic stroke, and rate of perioperative blood transfusion.Other variables collected included: age, sex, weight, anaesthesia risk stratified according to the American Society of Anesthesiologists (ASA), body mass index, comorbidities, use of medication that affects bleeding (antiplatelet agents, anticoagulants, antidepressants), and Hb changes: preoperative (1 month before surgery), immediate preoperative (on the day of surgery), 3 days after surgery, and at discharge.Randomization and blindingPatients were recruited almost 30 days prior to surgery (during the preoperative assessment by the anaesthesiologist), and randomly assigned to one of the 4 treatment groups (through list 1: 1 of 20 in 20) the day before surgery. All clinical investigators were blinded to treatment allocation. The pharmacy department prepared 3 vials of 100ml normal saline (NS) per patient; 1 with TXA 15mgkg−1, another with TXA 10mgkg−1, and a third without the drug.TXA, calculated according to weight (15mgkg−1), was added or not to the first and second vials of NS, depending on randomization. Since the drug is transparent and the TXA ampoule of 5ml was diluted in 100ml of NS, both the clinical staff and the patient were blinded to administration. In the third vial of NS, TXA 10mgkg−1 was added or not, according to randomization.The first group (Group 1) received 1 dose of TXA 15mgkg−1 20–30min before induction of tourniquet-limb ischaemia, NS without TXA before tourniquet release, and another dose of NS 3h after the end of the surgery, in the post-anaesthesia care unit (PACU).The second group (Group 2) received a first dose of TXA 15mgkg−1 20–30min before induction of tourniquet-limb ischemia, NS without TXA before tourniquet release, and a second dose of TXA 10mgkg−1 3h after surgery, in the PACU.The third group (Group 3) received a first dose of NS without TXA prior to incision, TXA 15mgkg−1 20–30min before tourniquet release, and a second dose of NS without TXA 3h after surgery in the PACU.The fourth group (Group 4) received a first dose of 100ml NS without TXA prior to incision, TXA 15mgkg−1 20−30min before tourniquet release, and a second dose of TXA 10mgkg−1 3h after surgery (<a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a>).<elsevierMultimedia ident="tbl0005"></elsevierMultimedia>The patients were then further classified into 2 groups according to the timing of TXA administration: before induction of limb ischaemia (Pre-induction group, comprising groups 1 and 2) or before tourniquet release (Pre-release group, comprising groups 3 and 4).A subanalysis was carried out to determine whether the administration of a second dose of TXA 3h after surgery led to a reduction in perioperative bleeding. Groups with only 1 intraoperative dose (single dose: Groups 1 and 3) were compared to groups who also received a postoperative dose (double dose: Groups 2 and 4).Statistical analysisSample size was calculated based on the possible differences in drain blood (ml) between groups. Accepting an alpha risk of 0.05 and a beta risk of 0.2 in a two-sided test, 40 subjects were needed in the first group and 40 in the second group to identify a difference greater than or equal to 100ml as statistically significant. The common standard deviation is assumed to be 150ml. A drop-out rate of 10% was anticipated.To obtain descriptive results and statistical differences between groups, we used the SSPS v13 software package. We tested the data using the Student’s t test, χ2, and Fisher’s exact tests. A P value of less than 0.05 was considered statistically significant. Levene’s test was used to detect sample normality in order to apply a non-parametric test.ResultsPatientsA total of 238 patients scheduled for TKA were evaluated in the perioperative assessment visit from April 2016 to May 2018. Of these, 26 were excluded prior to randomization either because they did not meet the inclusion criteria, or because they were unable to participate due to schedule changes (cancellation/postponed surgeries) or referral to another surgical centre.The remaining 212 patients were enrolled in the clinical trial and randomized into 4groups (Group 1, Group 2, Group 3 and Group 4, as explained above) from April 2016 to May 2018. The trial ended because we had already obtained a sufficient sample size. A total of 32 patients (9 from group 1, 12 from group 2, 2 from group 3 and 11 from group 4) were excluded on the day of the surgery either because the vials prepared in the Pharmacy Department did not arrive on time at the operating room, or because the treating anaesthesiologist did not record the study data during surgery. A further 2 patients from group 3 were excluded from the statistical analysis because their HCT count was not available and we were unable to calculate bleeding. Finally, 176 patients were analysed (44 from group 1, 41 from group 2, 49 from group 3 and 42 from group 4) [<a class="elsevierStyleCrossRef" href="#fig0005">Fig. 1</a>].<elsevierMultimedia ident="fig0005"></elsevierMultimedia>All groups were homogenous, except for age, baseline, and preoperative characteristics (<a class="elsevierStyleCrossRef" href="#tbl0010">Table 2</a>). A significant difference was found in Group 1, which contained slightly older patients, compared to the other groups. There were no differences in baseline characteristics between the pre-induction and pre-release groups (<a class="elsevierStyleCrossRef" href="#tbl0015">Table 3</a>); however, preoperative Hb and HCT were significantly higher in the double-dose group compared to the single-dose group (<a class="elsevierStyleCrossRef" href="#tbl0015">Table 3</a>).<elsevierMultimedia ident="tbl0010"></elsevierMultimedia><elsevierMultimedia ident="tbl0015"></elsevierMultimedia>Main objectiveAdministration of TXA at induction caused no differences in postoperative bleeding (visible and calculated blood loss) compared to administration before tourniquet release (<a class="elsevierStyleCrossRef" href="#tbl0020">Table 4</a>). There were no differences between groups in postoperative Hb changes, adverse events, or complications. Surprisingly, we found 12 cases of haematoma in the pre-induction group (<a class="elsevierStyleCrossRef" href="#tbl0020">Table 4</a>), although this did not cause more severe anaemia. The rate of thromboembolic events was very low, with only 1 case of pulmonary embolism in the pre-release group. The 70-year-old male patient presented acute dyspnoea with hypoxemia (oxygen desaturation of 88%) on the second postoperative day, due to deep venous thrombosis with segmental pulmonary thromboembolism. The patient recovered after oxygen therapy and anticoagulation with enoxaparin (<a class="elsevierStyleCrossRef" href="#tbl0020">Table 4</a>).<elsevierMultimedia ident="tbl0020"></elsevierMultimedia>Secondary objectiveNo differences in visible or calculated blood loss were found between the single-dose and the double-dose groups. Interestingly, significant differences between Hb and HCT 24h after surgery and at discharge were found between the double-dose groups. However, as explained above, there were also differences in baseline Hb and HCT, which could explain why both Hb and HCT were higher in patients who also received a postoperative dose.With regard to in-hospital adverse events, the only difference was a higher rate (4-fold) of postoperative nausea and vomiting in the single-dose group, which correlated with a non-significantly higher incidence of episodes of hypotension in that group. There were no differences in postoperative complications, although the incidence of postoperative haematoma tended to be higher when only 1 dose of TXA was administered.TransfusionThe transfusion rate was very low overall, thanks to preoperative optimisation of anaemia. Only 1 patient in the pre-release group received 1 unit of red blood cells after surgery.Length of stayNeither the timing of TXA administration nor the administration of a second postoperative dose led to a significant reduction in the length of hospital stay.Major adverse events unrelated to TXAOne patient in the pre-release group presented an intraoperative attack of angina pectoris with V4–V5 ST segment depression due to a hypertensive crisis after knee cementation. The electrocardiographic alterations normalised after 2h of surgery, and haemodynamic stability was restored. Another patient in the pre-release group presented intraoperative arrhythmia (de novo atrial fibrillation).In the pre-induction group, one patient with a history of vasovagal syncope presented an exaggerated vasovagal reflex after surgery, with severe bradycardia and subsequent asystole requiring 60s of cardiorespiratory resuscitation and intravenous adrenalin. The patient recovered from this episode with no sequelae (<a class="elsevierStyleCrossRef" href="#tbl0020">Table 4</a>).DiscussionWe found that the timing of TXA administration in TKA did not significantly affect postoperative bleeding or transfusion requirements. Although the visible and calculated bleeding by drainage volume was lower in the pre-induction group than in the pre-release group, this difference was not statistically significant, neither did we observe significant differences in Hb at 24h or at discharge. Based on our data, we conclude that the timing of TXA administration in TKA has no clinical relevance.Our results are consistent with the only study found with the same objective. While in that case, the authors found a slight advantage in terms of blood loss (visible and calculated) in administering TXA on induction of anaesthesia, the difference was not clinically relevant<a class="elsevierStyleCrossRef" href="#bib0090">18</a>. A randomised control trial with a larger sample would enable us to find relevant differences, but our results also showed no clinical impact.In our study, while Hb and HCT at discharge were significantly higher in the groups that received 2 doses of TXA, these differences could be attributed to the fact that these patients presented higher baseline levels of Hb and HCT. As in Tanaka et al., there were no differences in transfusion requirements between groups<a class="elsevierStyleCrossRef" href="#bib0090">18</a>, and overall, our transfusion rate was very low. Legnani et al., however, reported a higher transfusion rate<a class="elsevierStyleCrossRef" href="#bib0095">19</a>, with significant differences between groups (13.5% with 1 dose vs 5.7% with 2 doses). We believe our transfusion rate was very low because all our patients were included in the Patient Blood Management programme, and therefore started surgery with optimised Hb20; moreover, both groups received tranexamic acid, resulting in lower perioperative blood loss. Patients with higher transfusion risk due to co-morbidity or lower preoperative Hb could theoretically benefit more from this second dose of TXA.<a class="elsevierStyleCrossRef" href="#bib0100">20</a>In our series, only 1 patient presented clinically relevant deep venous thrombosis and pulmonary embolism in the pre-release group, and we observed no significant differences in thromboembolic complications between groups. A recent double-blind clinical trial performed in our centre found that tourniquet-induced ischemia in TKA did not increase fibrinolysis compared to surgery without tourniquet (THA), neither were there differences in thromboembolic episodes between TKA and THA with or without TXA<a class="elsevierStyleCrossRef" href="#bib0105">21</a>. The fact that tourniquet use does not appear to increase fibrinolysis could explain why the timing of TXA administration (before or after ischemia) has no influence on thromboembolic events. More prospective studies are needed to confirm this.One limitation of our study is that echo-Doppler or D-dimer to identify clinically silent embolism were not performed in all our patients — only in those with clinical suspicion of thromboembolism.ConclusionThe timing of administration of TXA in primary knee arthroplasty with tourniquet has no influence on visible and calculated bleeding or thromboembolic complications. The second dose had no impact on outcomes.Author’s contributionCarol Luis: Data collection, writing – original draft, literature review, interpretation of results;Ana Pardo: Data collection, writing – original draft, literature review, graphics and tables;Carlos Moreno: Data collection, writing – original draft, protocol application;Claudia Teixell: Data collection, writing – original draft, writing – review and editing;Xavier Santiveri: Statistical analysis, interpretation of results;Elvira Bisbe: Study design, patient recruitment, interpretation of results, writing – review and editing.Financial support and sponsorshipThis work was funded by the Hospital del Mar, Barcelona, Spain, with no external funding.Declaration of interestNone." "textoCompletoSecciones" => array:1 [ "secciones" => array:14 [ 0 => array:3 [ "identificador" => "xres1796049" "titulo" => "Abstract" "secciones" => array:5 [ 0 => array:2 [ "identificador" => "abst0005" "titulo" => "Background and objectives" ] 1 => array:2 [ "identificador" => "abst0010" "titulo" => "Material and methods" ] 2 => array:2 [ "identificador" => "abst0015" "titulo" => "Results" ] 3 => array:2 [ "identificador" => "abst0020" "titulo" => "Conclusions" ] 4 => array:2 [ "identificador" => "abst0025" "titulo" => "Trial registration" ] ] ] 1 => array:2 [ "identificador" => "xpalclavsec1572058" "titulo" => "Keywords" ] 2 => array:3 [ "identificador" => "xres1796048" "titulo" => "Resumen" "secciones" => array:5 [ 0 => array:2 [ "identificador" => "abst0030" "titulo" => "Antecedentes y objetivos" ] 1 => array:2 [ "identificador" => "abst0035" "titulo" => "Material y métodos" ] 2 => array:2 [ "identificador" => "abst0040" "titulo" => "Resultados" ] 3 => array:2 [ "identificador" => "abst0045" "titulo" => "Conclusiones" ] 4 => array:2 [ "identificador" => "abst0050" "titulo" => "Registro de ensayo clínico" ] ] ] 3 => array:2 [ "identificador" => "xpalclavsec1572059" "titulo" => "Palabras clave" ] 4 => array:2 [ "identificador" => "sec0005" "titulo" => "Introduction" ] 5 => array:3 [ "identificador" => "sec0010" "titulo" => "Materials and methods" "secciones" => array:6 [ 0 => array:2 [ "identificador" => "sec0015" "titulo" => "Study design and setting" ] 1 => array:2 [ "identificador" => "sec0020" "titulo" => "Patient population" ] 2 => array:2 [ "identificador" => "sec0025" "titulo" => "Study objectives" ] 3 => array:2 [ "identificador" => "sec0030" "titulo" => "Outcomes" ] 4 => array:2 [ "identificador" => "sec0035" "titulo" => "Randomization and blinding" ] 5 => array:2 [ "identificador" => "sec0040" "titulo" => "Statistical analysis" ] ] ] 6 => array:3 [ "identificador" => "sec0045" "titulo" => "Results" "secciones" => array:6 [ 0 => array:2 [ "identificador" => "sec0050" "titulo" => "Patients" ] 1 => array:2 [ "identificador" => "sec0055" "titulo" => "Main objective" ] 2 => array:2 [ "identificador" => "sec0060" "titulo" => "Secondary objective" ] 3 => array:2 [ "identificador" => "sec0065" "titulo" => "Transfusion" ] 4 => array:2 [ "identificador" => "sec0070" "titulo" => "Length of stay" ] 5 => array:2 [ "identificador" => "sec0075" "titulo" => "Major adverse events unrelated to TXA" ] ] ] 7 => array:2 [ "identificador" => "sec0080" "titulo" => "Discussion" ] 8 => array:2 [ "identificador" => "sec0085" "titulo" => "Conclusion" ] 9 => array:2 [ "identificador" => "sec0090" "titulo" => "Author’s contribution" ] 10 => array:2 [ "identificador" => "sec0095" "titulo" => "Financial support and sponsorship" ] 11 => array:2 [ "identificador" => "sec0100" "titulo" => "Declaration of interest" ] 12 => array:2 [ "identificador" => "xack633997" "titulo" => "Acknowledgements" ] 13 => array:1 [ "titulo" => "References" ] ] ] "pdfFichero" => "main.pdf" "tienePdf" => true "fechaRecibido" => "2021-01-26" "fechaAceptado" => "2021-05-18" "PalabrasClave" => array:2 [ "en" => array:1 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Keywords" "identificador" => "xpalclavsec1572058" "palabras" => array:6 [ 0 => "Tranexamic acid" 1 => "Surgical" 2 => "Patient Blood Management" 3 => "Total knee replacement" 4 => "Blood loss" 5 => "Tourniquets" ] ] ] "es" => array:1 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Palabras clave" "identificador" => "xpalclavsec1572059" "palabras" => array:6 [ 0 => "Ácido tranexámico" 1 => "Cirugía" 2 => "Patient Blood Management" 3 => "Prótesis total de rodilla" 4 => "Sangrado" 5 => "Torniquete" ] ] ] ] "tieneResumen" => true "resumen" => array:2 [ "en" => array:3 [ "titulo" => "Abstract" "resumen" => "Background and objectivesThe ideal timing of tranexamic acid administration in total knee arthroplasty with tourniquet remains unclear. Our primary objective was to prove if administering it before surgical incision, instead of before releasing the tourniquet, reduces postoperative bleeding. A second objective was to determine whether a second dose reduces post-operative bleeding. Material and methodsA prospective, double-blind clinical trial was performed on 212 patients scheduled for total knee arthroplasty. They were randomised into 4 groups. Tranexamic acid was administered before the surgical incision in “pre-induction groups” (1 and 2), and just before the tourniquet release in “pre-release groups” (3 and 4). Groups 2 and 4 received a second dose 3h post-surgery. Main outcome was postoperative bleeding (visible blood loss and calculated total bleeding). Secondary outcomes were haemoglobin variations, complications and transfusion rate. ResultsThe mean calculated total bleeding was 1563ml (95%CI: 1445–1681) in preinduction groups versus 1576ml (95%CI: 1439–1713) in pre-release groups (P=0.9); 1579ml (95%CI: 1452–1706) in single-dose groups versus 1559ml (95%CI: 1431–1686) in double-dose groups (P=0.82). One patient was transfused. The mean haemoglobin at discharge was 10.4g/dl (95%CI: 10.2–10.7) in singledose groups versus 10.8 (95%CI: 10.6–11.1) in double-dose groups (P=0.06). ConclusionsThere were no differences in bleeding or transfusion regarding the time of tranexamic acid administration. The second dose had not impact on outcomes. Trial registrationEudraCT 2016-000071-24." "secciones" => array:5 [ 0 => array:2 [ "identificador" => "abst0005" "titulo" => "Background and objectives" ] 1 => array:2 [ "identificador" => "abst0010" "titulo" => "Material and methods" ] 2 => array:2 [ "identificador" => "abst0015" "titulo" => "Results" ] 3 => array:2 [ "identificador" => "abst0020" "titulo" => "Conclusions" ] 4 => array:2 [ "identificador" => "abst0025" "titulo" => "Trial registration" ] ] ] "es" => array:3 [ "titulo" => "Resumen" "resumen" => "Antecedentes y objetivosEl momento óptimo para la administración de ácido tranexámico en la artroplastia de rodilla con torniquete no está claro. El objetivo principal de nuestro estudio era demostrar si su administración tras la inducción anestésica reduce el sangrado postoperatorio respecto a administrarlo antes de la liberación del torniquete. Nuestro objetivo secundario era determinar si una segunda dosis reduce significativamente el sangrado. Material y métodosEnsayo clínico prospectivo con 212 pacientes programados para prótesis total de rodilla, aleatorizados en 4 grupos. El ácido tranexámico se administró antes de la isquemia en los «grupos preinducción» (1 y 2) y justo antes de la liberación del torniquete en los «grupos preliberación» (3 y 4). Los grupos 2 y 4 recibieron una segunda dosis 3 h después. La variable principal fue el sangrado postoperatorio (visible y el calculado). Las variables secundarias fueron la variación de hemoglobina, complicaciones y transfusión. ResultadosEl sangrado total calculado fue 1563ml (IC 95%: 1445–1681) en los grupos preinducción frente a 1576ml (IC 95%: 1439–1713) en los preliberación (p=0,9); los de dosis única sangraron 1579ml (IC 95%: 1452–1706) frente a 1559 ml (IC 95%: 1431–1686) en los de 2 dosis (p=0,82). La hemoglobina al alta fue 10,4 (IC 95%: 10,2–10,7) con una dosis frente a 10,8g/dl (IC 95%: 10,6–11,1) con 2 dosis (p=0,06). ConclusionesNo se detectaron diferencias en sangrado ni transfusión dependiendo del momento de administración del ácido tranexámico. Una segunda dosis tampoco tuvo impacto significativo. Registro de ensayo clínicoEudraCT 2016-000071-24." "secciones" => array:5 [ 0 => array:2 [ "identificador" => "abst0030" "titulo" => "Antecedentes y objetivos" ] 1 => array:2 [ "identificador" => "abst0035" "titulo" => "Material y métodos" ] 2 => array:2 [ "identificador" => "abst0040" "titulo" => "Resultados" ] 3 => array:2 [ "identificador" => "abst0045" "titulo" => "Conclusiones" ] 4 => array:2 [ "identificador" => "abst0050" "titulo" => "Registro de ensayo clínico" ] ] ] ] "multimedia" => array:5 [ 0 => array:8 [ "identificador" => "fig0005" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 3344 "Ancho" => 2841 "Tamanyo" => 720831 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0065" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "Consort flow diagram." ] ] 1 => array:8 [ "identificador" => "tbl0005" "etiqueta" => "Table 1" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0070" "detalle" => "Table " "rol" => "short" ] ] "tabla" => array:2 [ "leyenda" => "NS: saline (placebo); TXA: tranexamic acid." "tablatextoimagen" => array:1 [ 0 => array:1 [ "tabla" => array:1 [ 0 => """ <table border="0" frame="\n \t\t\t\t\tvoid\n \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Group \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Induction \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Ischaemia \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Postoperative \t\t\t\t\t\t\n \t\t\t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">TXA (15mgkg−1)+NS \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">NS \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">NS \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">TXA (15mgkg−1)+NS \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">NS \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">TXA (10mgkg−1)+NS \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">3 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">NS \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">TXA (15mgkg−1)+NS \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">NS \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">4 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">NS \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">TXA (15mgkg−1)+NS \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">TXA (10mgkg−1)+NS \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] ] ] ] "descripcion" => array:1 [ "en" => "Randomised groups and drug administration." ] ] 2 => array:8 [ "identificador" => "tbl0010" "etiqueta" => "Table 2" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0075" "detalle" => "Table " "rol" => "short" ] ] "tabla" => array:2 [ "leyenda" => "Values expressed as mean (SD) or number [%] in each group. ASA: American Society of Anaesthesiologists physical status classification; BMI, body mass index; EPO, erythropoietin; FEV, intravenous iron; Hb, haemoglobin; HCT, haematocrit." "tablatextoimagen" => array:1 [ 0 => array:1 [ "tabla" => array:1 [ 0 => """ <table border="0" frame="\n \t\t\t\t\tvoid\n \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Variable \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Group 1 (n=44) \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Group 2 (n=41) \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Group 3 (n=49) \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Group 4 (n=42) \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">P-value \t\t\t\t\t\t\n \t\t\t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Age (yr) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">74.66±8.41 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">70.22±8.45 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">70.06±8.13 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">72.50±6.02 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.02 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Male sex (no. [%]) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">10 [22.7] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">12 [29.3] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">11 [25.0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">11 [25] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.87 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">BMI (kgm−2) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">30.45±4.86 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">30.97±6.14 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">30.76±7.08 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">32.74±6.94 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.3 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " colspan="6" align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">ASA (no. [%])</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">I \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">5 [11.4] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">5 [12.5] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 [4.1] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">3 [7.1] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.55 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">II \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">36 [81.8] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">33 [82.5] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">43 [87.8] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">36 [85.7] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.98 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">III \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">3 [6.8] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 [5] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">4 [8.2] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">3 [7.1] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.95 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Preoperative Hb (g/dl) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">13.91±1.02 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">14.52±1.20 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">14.08±1.27 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">14.31±1.09 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.08 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Preoperative HCT (%) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">42.23±3.0 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">43.75±3.40 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">42.75±3.65 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">43.77±3.06 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.08 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Preoperative FEV (no. [%]) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [0.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [0.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 [1.1] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [0.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.94 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Preoperative EPO (no. [%]) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [0.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0.0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0.0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [0.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.54 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Spinal anaesthesia (no. [%]) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">44 [100] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">39 [95.1] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">48 [97.9] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">41 [97.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.99 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Surgery time (min) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">75.91±18.66 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">73.93±14.21 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">71.57±17.0 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">72.67±16.08 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.6 \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] ] ] ] "descripcion" => array:1 [ "en" => "Baseline characteristics of study groups." ] ] 3 => array:8 [ "identificador" => "tbl0015" "etiqueta" => "Table 3" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0080" "detalle" => "Table " "rol" => "short" ] ] "tabla" => array:2 [ "leyenda" => "Values expressed as mean (SD) or number [%] for each group. ASA, American Society of Anaesthesiologists physical status classification; BMI, body mass index; EPO, erythropoietin; FEV, intravenous iron; Hb, haemoglobin; HCT, haematocrit." "tablatextoimagen" => array:1 [ 0 => array:1 [ "tabla" => array:1 [ 0 => """ <table border="0" frame="\n \t\t\t\t\tvoid\n \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">Variable \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">Preinduction \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">Pre-release \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">P-value \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">Single dose \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">Double dose \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">P value \t\t\t\t\t\t\n \t\t\t\t\t\t</th></tr><tr title="table-row"><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black"> \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Groups 1+2 (n=85) \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Groups 3+4 (n=91) \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black"> \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Groups 1+3 (n=93) \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Groups 2+4 (n=83) \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black"> \t\t\t\t\t\t\n \t\t\t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Age (yr) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">72.52±8.67 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">71.19±7.29 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.27 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">72.24±8.54 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">71.37±7.37 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.47 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Male sex (no. [%]) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">22 [25.9] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">22 [24.2] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.80 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">21 [22.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">23 [27.7] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.43 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">BMI (kgm−2) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">30.70±5.48 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">31.67±7.04 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.31 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">30.6±6.1 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">31.60±6.5 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.19 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " colspan="7" align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">ASA (no. [%])</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">I \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">10 [5.7] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">5 [2.9] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.08 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">7 [4] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">8 [4.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.19 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">II \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">69 [39.4] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">79 [45.8] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.76 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">79 [45.1] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">68 [38.9] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.87 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">III \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">5 [2.9] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">7 [4] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.24 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">7 [4] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">5 [2.9] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.22 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Preoperative Hb (g/dl) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">14.20±1.14 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">14.18±1.19 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.90 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">14.00±1.15 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">14.41±1.14 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.01 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Preoperative HCT (l/l) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">42.96±3.27 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">43.22±3.41 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.61 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">42.50±3.35 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">43.76±3.21 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.01 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Preoperative FEV (no.[%]) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 [2.4] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">3 [3.3] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.53 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">3 [3.2] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 [2.4] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.55 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Preoperative EPO (no. [%]) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [1.2] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [1.1] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.73 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [1.1] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [1.2] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.72 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Spinal anaesthesia (no. [%]) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">83 [97.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">89 [97.8] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.94 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">92 [98.9] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">80 [96.4] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.26 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Surgery time (min) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">74.96±16.62 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">72.08±16.50 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.25 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">73.62±17.84 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">73.28±15.12 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.89 \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] ] ] ] "descripcion" => array:1 [ "en" => "Baseline characteristics of pre-induction and pre-release groups and single- and double-dose groups." ] ] 4 => array:8 [ "identificador" => "tbl0020" "etiqueta" => "Table 4" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0085" "detalle" => "Table " "rol" => "short" ] ] "tabla" => array:2 [ "leyenda" => "Values expressed as mean (SD) or number [%]. Intraop., intraoperative; ACS, acute coronary syndrome; AKI, acute kidney injury; PE, pulmonary embolism; PNV, postoperative nausea or vomiting." "tablatextoimagen" => array:1 [ 0 => array:1 [ "tabla" => array:1 [ 0 => """ <table border="0" frame="\n \t\t\t\t\tvoid\n \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">Variable \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">Preinduction \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">Pre-release \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">P-value \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">Single dose \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">Double dose \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">P- value \t\t\t\t\t\t\n \t\t\t\t\t\t</th></tr><tr title="table-row"><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black"> \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Groups 1+2 (n=85) \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Groups 3+4 (n=91) \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black"> \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Groups 1+3 (n=93) \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Groups 2+4 (n=83) \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black"> \t\t\t\t\t\t\n \t\t\t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " colspan="7" align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Haemoglobin (g/dl)</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">24h \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">11.76±1.17 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">11.72±1.13 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.86 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">11.58±1.21 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">11.93±1.05 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.07 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">At discharge \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">10.64±1.07 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">10.58±1.28 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.76 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">10.44±1.26 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">10.82±1.03 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.06 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " colspan="7" align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Haematocrit (%)</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">24h \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">35.41±3.60 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">35.32±3.13 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.87 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">34.77±3.51 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">36.04±3.09 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.03 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">At discharge \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">32.00±2.86 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">31.84±3.65 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.76 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">31.24±3.37 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">32.72±2.99 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.01 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Visible blood loss (ml) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">182.68±147.47 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">213.11±134.72 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.15 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">210.90±148.72 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">184.76±132.35 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.22 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Calculated blood loss (ml) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1563.02±494.531 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1575.95±568.32 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.90 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1578.80±547.97 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1558.79±514.02 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.82 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Length of stay (days) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">4.86±3.85 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">4.80±2.91 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.91 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">4.53±1.68 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">5.16±4.58 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.22 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Transfusion no. [%] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [1.1] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.51 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [0.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.47 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " colspan="7" align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Intraop. adverse events [%]</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Hypotension \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">3 [1.7] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 [1.1] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.30 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">3 [1.7] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 [1.1] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.33 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Angina/ACS \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [0.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.51 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [0.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.47 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">PNV \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [0.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.48 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [0.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.53 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Arrhythmia \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [0.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [0.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.50 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [0.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [0.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.50 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " colspan="7" align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">In-hospital adverse events [%]</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Allergy \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 [2.19] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.27 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 [2.1] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.28 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Hypotension \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">6 [7.01] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">7 [7.6 9] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.22 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">9 [9.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">4 [4.8] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.12 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">PNV \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">6 [7.01] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">5 [5.5] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.22 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">9 [9.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 [2.4] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.04 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Arrhythmia \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [1.17] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.48 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [1.07] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.53 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Dyspnoea \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [1.09] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.51 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [1.07] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.53 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Bleeding \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 [2.3] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">3 [3.29] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.32 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">4 [4.3] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [1.2] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.19 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">PE \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [1.09] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.51 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [1.07] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.53 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Fever \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">4 [4.39] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.07 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">4 [4.3] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.09 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">AKI \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 [2.3] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [1.09] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.36 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [1.07] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 [2.4] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.35 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Surgical \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [1.17] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.48 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [1.07] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.53 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " colspan="7" align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Postoperative complications</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Haematoma \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">12 [14.11] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">6 [6,59] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.06 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">11 [11.82] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">7 [8.4] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.15 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Severe anaemia \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [1.09] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.51 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [1.07] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.53 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Infection \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [1.17] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.48 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 [1.07] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 [0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.53 \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] ] ] ] "descripcion" => array:1 [ "en" => "Primary and secondary outcomes." ] ] ] "bibliografia" => array:2 [ "titulo" => "References" "seccion" => array:1 [ 0 => array:2 [ "identificador" => "bibs0005" "bibliografiaReferencia" => array:21 [ 0 => array:3 [ "identificador" => "bib0005" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "The epidemiology of blood component transfusion in Catalonia, Northeastern Spain" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:6 [ 0 => "M.A. Bosch" 1 => "E. 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Clinical trial to determine whether the timing of tranexamic acid administration influences perioperative bleeding in total knee arthroplasty

Ensayo clínico para determinar si el momento de administración del ácido tranexámico en la cirugía de prótesis total de rodilla con torniquete influye en el sangrado perioperatorio

C. Luisa,

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61307@parcdesalutmar.cat

Corresponding author.

, A. Pardoa, C.E. Morenoa, C. Teixella, X. Santiveria, E. Bisbea,b

a Departamento de Anestesiología, Hospital del Mar, Barcelona, Spain

b Instituto de Investigación Médica Hospital del Mar: IMIM, Barcelona, Spain

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    "textoCompleto" => "<span class="elsevierStyleSections"><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0075">Introduction</span><p id="par0005" class="elsevierStylePara elsevierViewall">Total knee arthroplasty &#40;TKA&#41; is a common procedure with a high rate of blood transfusion<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a>&#46; Transfusion is an independent risk factor for morbidity and mortality<a class="elsevierStyleCrossRef" href="#bib0010"><span class="elsevierStyleSup">2</span></a>&#44; and is associated with an increased risk of postsurgical infections and thromboembolic events&#44; which prolong hospital stay<a class="elsevierStyleCrossRef" href="#bib0015"><span class="elsevierStyleSup">3</span></a>&#46; Patient Blood Management &#40;PBM&#41; is an evidence-based bundle of care to improve patient outcomes by managing and preserving the patient&#8217;s own blood&#46; The second pillar of PBM includes strategies to reduce blood loss<a class="elsevierStyleCrossRefs" href="#bib0020"><span class="elsevierStyleSup">4&#8211;7</span></a>&#46;</p><p id="par0010" class="elsevierStylePara elsevierViewall">One of the most effective methods for minimising bleeding and transfusions in TKA is the use of perioperative antifibrinolytic drugs&#44; such as tranexamic acid &#40;C<span class="elsevierStyleInf">8</span>H<span class="elsevierStyleInf">15</span>NO<span class="elsevierStyleInf">2</span>&#41; &#40;TXA&#41;<a class="elsevierStyleCrossRefs" href="#bib0040"><span class="elsevierStyleSup">8&#44;9</span></a>&#46; TXA blocks the binding site of plasminogen to fibrin and prevents clot lysis&#46; Several clinical trials have provided evidence of its effectiveness and safety<a class="elsevierStyleCrossRef" href="#bib0050"><span class="elsevierStyleSup">10</span></a>&#44; especially in cardiac and major orthopaedic surgery<a class="elsevierStyleCrossRefs" href="#bib0055"><span class="elsevierStyleSup">11&#8211;13</span></a>&#44; so it is recommended in procedures such as TKA&#44; total hip arthroplasty &#40;THA&#41; and spinal surgery<a class="elsevierStyleCrossRef" href="#bib0035"><span class="elsevierStyleSup">7</span></a>&#46; Both intravenous and topical administration have proven effective and safe in TKA<a class="elsevierStyleCrossRef" href="#bib0070"><span class="elsevierStyleSup">14</span></a>&#46; The side effects and the antifibrinolytic and anti-inflammatory effects of TXA are most likely dose-related&#46; If the TXA dose is repeated&#44; the second dose is usually given at 3<span class="elsevierStyleHsp" style=""></span>h&#44; which is the elimination half-life of the drug<a class="elsevierStyleCrossRef" href="#bib0075"><span class="elsevierStyleSup">15</span></a>&#46; The optimal dose and timing of TXA administration&#44; as well as its mechanism of action and pharmacokinetics&#44; require further study<a class="elsevierStyleCrossRef" href="#bib0080"><span class="elsevierStyleSup">16</span></a>&#46;</p><p id="par0015" class="elsevierStylePara elsevierViewall">Administering TXA at the beginning of the intervention could prevent the onset of fibrinolysis and reduce bleeding during surgery<a class="elsevierStyleCrossRef" href="#bib0065"><span class="elsevierStyleSup">13</span></a>&#46; However&#44; in surgery with tourniquet&#44; some anaesthetists prefer to administer TXA just before tourniquet release&#44; since that is the time of greatest fibrinolysis and onset of bleeding&#46; Moreover&#44; the administration of TXA at the end of surgery could reduce the risk of intraoperative thrombosis and provide an additional hour of postoperative antifibrinolysis<a class="elsevierStyleCrossRefs" href="#bib0080"><span class="elsevierStyleSup">16&#44;17</span></a>&#46; We found only 1 clinical trial comparing different timings of TXA administration in TKA with tourniquet&#46; In the group that received preoperative TXA&#44; blood loss and transfusion requirements were slightly lower than in the group receiving TXA before tourniquet release&#44; but not significantly so&#46; The number of cases may have been insufficient to show significant differences between the groups<a class="elsevierStyleCrossRef" href="#bib0090"><span class="elsevierStyleSup">18</span></a>&#46; The ideal time for administration of a single dose of TXA in TKA surgery is still unclear&#44; and more studies are needed&#46;</p><p id="par0020" class="elsevierStylePara elsevierViewall">According to some publications&#44; administering 2 doses of TXA might be more effective than a single dose&#46; The above-mentioned study showed that 2 doses of TXA are more effective in reducing blood loss and maintaining higher postoperative haemoglobin &#40;Hb&#41; levels&#44; but differences in transfusion requirements were not significant<a class="elsevierStyleCrossRef" href="#bib0090"><span class="elsevierStyleSup">18</span></a>&#46; In another recent study&#44; more patients required transfusion in the group that received a single preoperative dose of TXA vs the group that received 2 doses &#40;13&#46;5&#37; vs 5&#46;7&#37;&#44; respectively&#41;&#44; but there were no differences in drain output or postoperative Hb levels&#46; The study&#44; however&#44; had important limitations&#44; as it was a retrospective study and the baseline characteristics of the patients were not described<a class="elsevierStyleCrossRef" href="#bib0095"><span class="elsevierStyleSup">19</span></a>&#46;</p><p id="par0025" class="elsevierStylePara elsevierViewall">The main aim of our study was to determine whether the timing of TXA administration in TKA with tourniquet influences perioperative bleeding&#44; transfusion&#44; and complications&#46; Our secondary aim was to determine whether a second dose of TXA has a significant clinical impact on outcomes&#46;</p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0080">Materials and methods</span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0085">Study design and setting</span><p id="par0030" class="elsevierStylePara elsevierViewall">The study was approved by an independent Ethics Committee&#58; CEIC-Parc de Salut MAR &#40;Clinical Research Ethical Committee&#44; Parc de Salut MAR&#41;&#44; Barcelona&#44; Spain on January 7th 2016&#44; registered with the EU Clinical Trials Register &#40;EudraCT 2016-000071-24&#41;&#44; and was conducted in accordance with the Declaration of Helsinki&#46; Written informed consent was obtained from all participants prior to surgery&#46;</p><p id="par0035" class="elsevierStylePara elsevierViewall">TRANEXTIME is a single-centre&#44; prospective&#44; randomised&#44; double-blind&#44; four-arm parallel-group&#44; placebo-controlled clinical trial evaluating the effect of the timing of TXA administration &#40;at induction or just before tourniquet release&#41; on perioperative bleeding in TKA&#44; and the clinical relevance of a second dose of TXA&#46;</p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0090">Patient population</span><p id="par0040" class="elsevierStylePara elsevierViewall">We enrolled adults&#44; aged 18 years and over&#44; scheduled for elective primary unilateral cemented TKA between April 2016 and May 2018 in Hospital del Mar&#46;</p><p id="par0045" class="elsevierStylePara elsevierViewall">All study patients were adults scheduled for primary TKA with tourniquet&#44; and all signed a consent form&#46;</p><p id="par0050" class="elsevierStylePara elsevierViewall">Patients were excluded if they had a history of arterial or venous thrombosis&#44; pulmonary thromboembolism&#44; atrial fibrillation&#44; chronic kidney disease &#40;GFR &#60;40<span class="elsevierStyleHsp" style=""></span>mm&#41;&#44; epilepsy &#40;convulsions in the preceding year&#41;&#44; congenital or acquired coagulation disorder &#40;including patients taking anticoagulants or antiplatelet drugs&#41;&#44; allergy or hypersensitivity to TXA or any of the excipients of the study medication&#46; Women who were pregnant or possibly pregnant were also excluded&#46;</p><p id="par0055" class="elsevierStylePara elsevierViewall">After attending the pre-anaesthesia consultation around 1 month before surgery&#44; all patients with anaemia &#40;Hb less than 13<span class="elsevierStyleHsp" style=""></span>g&#47;dl&#41; were enrolled in a preoperative Hb optimisation programme&#44; so that their Hb levels had been normalised at the time of surgery&#46; The anaesthesia technique was decided by the anaesthesiologist on the day of the surgery&#44; based on the characteristics of each patient&#46;</p><p id="par0060" class="elsevierStylePara elsevierViewall">In the recovery room&#44; sciatic and femoral nerve block were performed for postoperative pain management&#46; Drainage tubes were placed in all patients to collect shed blood&#44; and all received daily prophylactic Bemiparin &#40;3500<span class="elsevierStyleHsp" style=""></span>mg&#41; to prevent thromboembolic events&#46;</p><p id="par0065" class="elsevierStylePara elsevierViewall">Mean hospital stay was 5 days&#46;</p></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0095">Study objectives</span><p id="par0070" class="elsevierStylePara elsevierViewall">The main objective of the study was to determine whether administering TXA at anaesthesia induction for TKA rather than 30<span class="elsevierStyleHsp" style=""></span>min before tourniquet release had any effect on bleeding and outcomes&#46; TXA was administered intravenously&#44; as this is route commonly used in our hospital&#46;</p><p id="par0075" class="elsevierStylePara elsevierViewall">The secondary objective was to evaluate the clinical impact of a second dose of TXA &#40;3<span class="elsevierStyleHsp" style=""></span>h after surgery&#41; on outcomes &#40;bleeding&#44; haemoglobin&#44; allogeneic blood transfusion&#44; and complications&#41;&#46;</p></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0100">Outcomes</span><p id="par0080" class="elsevierStylePara elsevierViewall">The primary outcome was postoperative blood loss collected from a drainage tube measured in millilitres &#40;ml&#41; &#40;total amount of blood in the drain until withdrawal&#41;&#44; and total blood loss calculated using the Gross formula&#58; uncompensated erythrocyte loss<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>total blood volume &#40;ml&#41;<span class="elsevierStyleHsp" style=""></span>&#215;<span class="elsevierStyleHsp" style=""></span>&#40;preoperative haematocrit &#91;HCT&#93;<span class="elsevierStyleHsp" style=""></span>&#8722;<span class="elsevierStyleHsp" style=""></span>HCT on the fourth day after surgery&#41;&#46;</p><p id="par0085" class="elsevierStylePara elsevierViewall">Secondary outcome variables included&#58; changes in Hb and reported incidence of venous thromboembolism and pulmonary embolism &#40;only clinically relevant episodes were recorded&#41;&#44; myocardial infarction&#44; transient ischemic attack&#44; ischemic stroke&#44; and rate of perioperative blood transfusion&#46;</p><p id="par0090" class="elsevierStylePara elsevierViewall">Other variables collected included&#58; age&#44; sex&#44; weight&#44; anaesthesia risk stratified according to the American Society of Anesthesiologists &#40;ASA&#41;&#44; body mass index&#44; comorbidities&#44; use of medication that affects bleeding &#40;antiplatelet agents&#44; anticoagulants&#44; antidepressants&#41;&#44; and Hb changes&#58; preoperative &#40;1 month before surgery&#41;&#44; immediate preoperative &#40;on the day of surgery&#41;&#44; 3 days after surgery&#44; and at discharge&#46;</p></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0105">Randomization and blinding</span><p id="par0095" class="elsevierStylePara elsevierViewall">Patients were recruited almost 30 days prior to surgery &#40;during the preoperative assessment by the anaesthesiologist&#41;&#44; and randomly assigned to one of the 4 treatment groups &#40;through list 1&#58; 1 of 20 in 20&#41; the day before surgery&#46; All clinical investigators were blinded to treatment allocation&#46; The pharmacy department prepared 3 vials of 100<span class="elsevierStyleHsp" style=""></span>ml normal saline &#40;NS&#41; per patient&#59; 1 with TXA 15<span class="elsevierStyleHsp" style=""></span>mg<span class="elsevierStyleHsp" style=""></span>kg<span class="elsevierStyleSup">&#8722;1</span>&#44; another with TXA 10<span class="elsevierStyleHsp" style=""></span>mg<span class="elsevierStyleHsp" style=""></span>kg<span class="elsevierStyleSup">&#8722;1</span>&#44; and a third without the drug&#46;</p><p id="par0100" class="elsevierStylePara elsevierViewall">TXA&#44; calculated according to weight &#40;15<span class="elsevierStyleHsp" style=""></span>mg<span class="elsevierStyleHsp" style=""></span>kg<span class="elsevierStyleSup">&#8722;1</span>&#41;&#44; was added or not to the first and second vials of NS&#44; depending on randomization&#46; Since the drug is transparent and the TXA ampoule of 5<span class="elsevierStyleHsp" style=""></span>ml was diluted in 100<span class="elsevierStyleHsp" style=""></span>ml of NS&#44; both the clinical staff and the patient were blinded to administration&#46; In the third vial of NS&#44; TXA 10<span class="elsevierStyleHsp" style=""></span>mg<span class="elsevierStyleHsp" style=""></span>kg<span class="elsevierStyleSup">&#8722;1</span> was added or not&#44; according to randomization&#46;</p><p id="par0105" class="elsevierStylePara elsevierViewall">The first group &#40;Group 1&#41; received 1 dose of TXA 15<span class="elsevierStyleHsp" style=""></span>mg<span class="elsevierStyleHsp" style=""></span>kg<span class="elsevierStyleSup">&#8722;1</span> 20&#8211;30<span class="elsevierStyleHsp" style=""></span>min before induction of tourniquet-limb ischaemia&#44; NS without TXA before tourniquet release&#44; and another dose of NS 3<span class="elsevierStyleHsp" style=""></span>h after the end of the surgery&#44; in the post-anaesthesia care unit &#40;PACU&#41;&#46;</p><p id="par0110" class="elsevierStylePara elsevierViewall">The second group &#40;Group 2&#41; received a first dose of TXA 15<span class="elsevierStyleHsp" style=""></span>mg<span class="elsevierStyleHsp" style=""></span>kg<span class="elsevierStyleSup">&#8722;1</span> 20&#8211;30<span class="elsevierStyleHsp" style=""></span>min before induction of tourniquet-limb ischemia&#44; NS without TXA before tourniquet release&#44; and a second dose of TXA 10<span class="elsevierStyleHsp" style=""></span>mg<span class="elsevierStyleHsp" style=""></span>kg<span class="elsevierStyleSup">&#8722;1</span> 3<span class="elsevierStyleHsp" style=""></span>h after surgery&#44; in the PACU&#46;</p><p id="par0115" class="elsevierStylePara elsevierViewall">The third group &#40;Group 3&#41; received a first dose of NS without TXA prior to incision&#44; TXA 15<span class="elsevierStyleHsp" style=""></span>mg<span class="elsevierStyleHsp" style=""></span>kg<span class="elsevierStyleSup">&#8722;1</span> 20&#8211;30<span class="elsevierStyleHsp" style=""></span>min before tourniquet release&#44; and a second dose of NS without TXA 3<span class="elsevierStyleHsp" style=""></span>h after surgery in the PACU&#46;</p><p id="par0120" class="elsevierStylePara elsevierViewall">The fourth group &#40;Group 4&#41; received a first dose of 100<span class="elsevierStyleHsp" style=""></span>ml NS without TXA prior to incision&#44; TXA 15<span class="elsevierStyleHsp" style=""></span>mg<span class="elsevierStyleHsp" style=""></span>kg<span class="elsevierStyleSup">&#8722;1</span> 20&#8722;30<span class="elsevierStyleHsp" style=""></span>min before tourniquet release&#44; and a second dose of TXA 10<span class="elsevierStyleHsp" style=""></span>mg<span class="elsevierStyleHsp" style=""></span>kg<span class="elsevierStyleSup">&#8722;1</span> 3<span class="elsevierStyleHsp" style=""></span>h after surgery &#40;<a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a>&#41;&#46;</p><elsevierMultimedia ident="tbl0005"></elsevierMultimedia><p id="par0125" class="elsevierStylePara elsevierViewall">The patients were then further classified into 2 groups according to the timing of TXA administration&#58; before induction of limb ischaemia &#40;Pre-induction group&#44; comprising groups 1 and 2&#41; or before tourniquet release &#40;Pre-release group&#44; comprising groups 3 and 4&#41;&#46;</p><p id="par0130" class="elsevierStylePara elsevierViewall">A subanalysis was carried out to determine whether the administration of a second dose of TXA 3<span class="elsevierStyleHsp" style=""></span>h after surgery led to a reduction in perioperative bleeding&#46; Groups with only 1 intraoperative dose &#40;single dose&#58; Groups 1 and 3&#41; were compared to groups who also received a postoperative dose &#40;double dose&#58; Groups 2 and 4&#41;&#46;</p></span><span id="sec0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0110">Statistical analysis</span><p id="par0135" class="elsevierStylePara elsevierViewall">Sample size was calculated based on the possible differences in drain blood &#40;ml&#41; between groups&#46; Accepting an alpha risk of 0&#46;05 and a beta risk of 0&#46;2 in a two-sided test&#44; 40 subjects were needed in the first group and 40 in the second group to identify a difference greater than or equal to 100<span class="elsevierStyleHsp" style=""></span>ml as statistically significant&#46; The common standard deviation is assumed to be 150<span class="elsevierStyleHsp" style=""></span>ml&#46; A drop-out rate of 10&#37; was anticipated&#46;</p><p id="par0140" class="elsevierStylePara elsevierViewall">To obtain descriptive results and statistical differences between groups&#44; we used the SSPS v13 software package&#46; We tested the data using the Student&#8217;s t test&#44; &#967;<span class="elsevierStyleSup">2</span>&#44; and Fisher&#8217;s exact tests&#46; A P value of less than 0&#46;05 was considered statistically significant&#46; Levene&#8217;s test was used to detect sample normality in order to apply a non-parametric test&#46;</p></span></span><span id="sec0045" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0115">Results</span><span id="sec0050" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0120">Patients</span><p id="par0145" class="elsevierStylePara elsevierViewall">A total of 238 patients scheduled for TKA were evaluated in the perioperative assessment visit from April 2016 to May 2018&#46; Of these&#44; 26 were excluded prior to randomization either because they did not meet the inclusion criteria&#44; or because they were unable to participate due to schedule changes &#40;cancellation&#47;postponed surgeries&#41; or referral to another surgical centre&#46;</p><p id="par0150" class="elsevierStylePara elsevierViewall">The remaining 212 patients were enrolled in the clinical trial and randomized into 4<span class="elsevierStyleHsp" style=""></span>groups &#40;Group 1&#44; Group 2&#44; Group 3 and Group 4&#44; as explained above&#41; from April 2016 to May 2018&#46; The trial ended because we had already obtained a sufficient sample size&#46; A total of 32 patients &#40;9 from group 1&#44; 12 from group 2&#44; 2 from group 3 and 11 from group 4&#41; were excluded on the day of the surgery either because the vials prepared in the Pharmacy Department did not arrive on time at the operating room&#44; or because the treating anaesthesiologist did not record the study data during surgery&#46; A further 2 patients from group 3 were excluded from the statistical analysis because their HCT count was not available and we were unable to calculate bleeding&#46; Finally&#44; 176 patients were analysed &#40;44 from group 1&#44; 41 from group 2&#44; 49 from group 3 and 42 from group 4&#41; &#91;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>&#93;&#46;</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><p id="par0155" class="elsevierStylePara elsevierViewall">All groups were homogenous&#44; except for age&#44; baseline&#44; and preoperative characteristics &#40;<a class="elsevierStyleCrossRef" href="#tbl0010">Table 2</a>&#41;&#46; A significant difference was found in Group 1&#44; which contained slightly older patients&#44; compared to the other groups&#46; There were no differences in baseline characteristics between the pre-induction and pre-release groups &#40;<a class="elsevierStyleCrossRef" href="#tbl0015">Table 3</a>&#41;&#59; however&#44; preoperative Hb and HCT were significantly higher in the double-dose group compared to the single-dose group &#40;<a class="elsevierStyleCrossRef" href="#tbl0015">Table 3</a>&#41;&#46;</p><elsevierMultimedia ident="tbl0010"></elsevierMultimedia><elsevierMultimedia ident="tbl0015"></elsevierMultimedia></span><span id="sec0055" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0125">Main objective</span><p id="par0160" class="elsevierStylePara elsevierViewall">Administration of TXA at induction caused no differences in postoperative bleeding &#40;visible and calculated blood loss&#41; compared to administration before tourniquet release &#40;<a class="elsevierStyleCrossRef" href="#tbl0020">Table 4</a>&#41;&#46; There were no differences between groups in postoperative Hb changes&#44; adverse events&#44; or complications&#46; Surprisingly&#44; we found 12 cases of haematoma in the pre-induction group &#40;<a class="elsevierStyleCrossRef" href="#tbl0020">Table 4</a>&#41;&#44; although this did not cause more severe anaemia&#46; The rate of thromboembolic events was very low&#44; with only 1 case of pulmonary embolism in the pre-release group&#46; The 70-year-old male patient presented acute dyspnoea with hypoxemia &#40;oxygen desaturation of 88&#37;&#41; on the second postoperative day&#44; due to deep venous thrombosis with segmental pulmonary thromboembolism&#46; The patient recovered after oxygen therapy and anticoagulation with enoxaparin &#40;<a class="elsevierStyleCrossRef" href="#tbl0020">Table 4</a>&#41;&#46;</p><elsevierMultimedia ident="tbl0020"></elsevierMultimedia></span><span id="sec0060" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0130">Secondary objective</span><p id="par0165" class="elsevierStylePara elsevierViewall">No differences in visible or calculated blood loss were found between the single-dose and the double-dose groups&#46; Interestingly&#44; significant differences between Hb and HCT 24<span class="elsevierStyleHsp" style=""></span>h after surgery and at discharge were found between the double-dose groups&#46; However&#44; as explained above&#44; there were also differences in baseline Hb and HCT&#44; which could explain why both Hb and HCT were higher in patients who also received a postoperative dose&#46;</p><p id="par0170" class="elsevierStylePara elsevierViewall">With regard to in-hospital adverse events&#44; the only difference was a higher rate &#40;4-fold&#41; of postoperative nausea and vomiting in the single-dose group&#44; which correlated with a non-significantly higher incidence of episodes of hypotension in that group&#46; There were no differences in postoperative complications&#44; although the incidence of postoperative haematoma tended to be higher when only 1 dose of TXA was administered&#46;</p></span><span id="sec0065" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0135">Transfusion</span><p id="par0175" class="elsevierStylePara elsevierViewall">The transfusion rate was very low overall&#44; thanks to preoperative optimisation of anaemia&#46; Only 1 patient in the pre-release group received 1 unit of red blood cells after surgery&#46;</p></span><span id="sec0070" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0140">Length of stay</span><p id="par0180" class="elsevierStylePara elsevierViewall">Neither the timing of TXA administration nor the administration of a second postoperative dose led to a significant reduction in the length of hospital stay&#46;</p></span><span id="sec0075" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0145">Major adverse events unrelated to TXA</span><p id="par0185" class="elsevierStylePara elsevierViewall">One patient in the pre-release group presented an intraoperative attack of angina pectoris with V4&#8211;V5 ST segment depression due to a hypertensive crisis after knee cementation&#46; The electrocardiographic alterations normalised after 2<span class="elsevierStyleHsp" style=""></span>h of surgery&#44; and haemodynamic stability was restored&#46; Another patient in the pre-release group presented intraoperative arrhythmia &#40;<span class="elsevierStyleItalic">de novo</span> atrial fibrillation&#41;&#46;</p><p id="par0190" class="elsevierStylePara elsevierViewall">In the pre-induction group&#44; one patient with a history of vasovagal syncope presented an exaggerated vasovagal reflex after surgery&#44; with severe bradycardia and subsequent asystole requiring 60<span class="elsevierStyleHsp" style=""></span>s of cardiorespiratory resuscitation and intravenous adrenalin&#46; The patient recovered from this episode with no sequelae &#40;<a class="elsevierStyleCrossRef" href="#tbl0020">Table 4</a>&#41;&#46;</p></span></span><span id="sec0080" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0150">Discussion</span><p id="par0195" class="elsevierStylePara elsevierViewall">We found that the timing of TXA administration in TKA did not significantly affect postoperative bleeding or transfusion requirements&#46; Although the visible and calculated bleeding by drainage volume was lower in the pre-induction group than in the pre-release group&#44; this difference was not statistically significant&#44; neither did we observe significant differences in Hb at 24<span class="elsevierStyleHsp" style=""></span>h or at discharge&#46; Based on our data&#44; we conclude that the timing of TXA administration in TKA has no clinical relevance&#46;</p><p id="par0200" class="elsevierStylePara elsevierViewall">Our results are consistent with the only study found with the same objective&#46; While in that case&#44; the authors found a slight advantage in terms of blood loss &#40;visible and calculated&#41; in administering TXA on induction of anaesthesia&#44; the difference was not clinically relevant<a class="elsevierStyleCrossRef" href="#bib0090"><span class="elsevierStyleSup">18</span></a>&#46; A randomised control trial with a larger sample would enable us to find relevant differences&#44; but our results also showed no clinical impact&#46;</p><p id="par0205" class="elsevierStylePara elsevierViewall">In our study&#44; while Hb and HCT at discharge were significantly higher in the groups that received 2 doses of TXA&#44; these differences could be attributed to the fact that these patients presented higher baseline levels of Hb and HCT&#46; As in Tanaka et al&#46;&#44; there were no differences in transfusion requirements between groups<a class="elsevierStyleCrossRef" href="#bib0090"><span class="elsevierStyleSup">18</span></a>&#44; and overall&#44; our transfusion rate was very low&#46; Legnani et al&#46;&#44; however&#44; reported a higher transfusion rate<a class="elsevierStyleCrossRef" href="#bib0095"><span class="elsevierStyleSup">19</span></a>&#44; with significant differences between groups &#40;13&#46;5&#37; with 1 dose vs 5&#46;7&#37; with 2 doses&#41;&#46; We believe our transfusion rate was very low because all our patients were included in the Patient Blood Management programme&#44; and therefore started surgery with optimised Hb20&#59; moreover&#44; both groups received tranexamic acid&#44; resulting in lower perioperative blood loss&#46; Patients with higher transfusion risk due to co-morbidity or lower preoperative Hb could theoretically benefit more from this second dose of TXA&#46;<a class="elsevierStyleCrossRef" href="#bib0100"><span class="elsevierStyleSup">20</span></a></p><p id="par0210" class="elsevierStylePara elsevierViewall">In our series&#44; only 1 patient presented clinically relevant deep venous thrombosis and pulmonary embolism in the pre-release group&#44; and we observed no significant differences in thromboembolic complications between groups&#46; A recent double-blind clinical trial performed in our centre found that tourniquet-induced ischemia in TKA did not increase fibrinolysis compared to surgery without tourniquet &#40;THA&#41;&#44; neither were there differences in thromboembolic episodes between TKA and THA with or without TXA<a class="elsevierStyleCrossRef" href="#bib0105"><span class="elsevierStyleSup">21</span></a>&#46; The fact that tourniquet use does not appear to increase fibrinolysis could explain why the timing of TXA administration &#40;before or after ischemia&#41; has no influence on thromboembolic events&#46; More prospective studies are needed to confirm this&#46;</p><p id="par0215" class="elsevierStylePara elsevierViewall">One limitation of our study is that echo-Doppler or D-dimer to identify clinically silent embolism were not performed in all our patients &#8212; only in those with clinical suspicion of thromboembolism&#46;</p></span><span id="sec0085" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0155">Conclusion</span><p id="par0220" class="elsevierStylePara elsevierViewall">The timing of administration of TXA in primary knee arthroplasty with tourniquet has no influence on visible and calculated bleeding or thromboembolic complications&#46; The second dose had no impact on outcomes&#46;</p></span><span id="sec0090" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0160">Author&#8217;s contribution</span><p id="par0225" class="elsevierStylePara elsevierViewall">Carol Luis&#58; Data collection&#44; writing &#8211; original draft&#44; literature review&#44; interpretation of results&#59;</p><p id="par0230" class="elsevierStylePara elsevierViewall">Ana Pardo&#58; Data collection&#44; writing &#8211; original draft&#44; literature review&#44; graphics and tables&#59;</p><p id="par0235" class="elsevierStylePara elsevierViewall">Carlos Moreno&#58; Data collection&#44; writing &#8211; original draft&#44; protocol application&#59;</p><p id="par0240" class="elsevierStylePara elsevierViewall">Claudia Teixell&#58; Data collection&#44; writing &#8211; original draft&#44; writing &#8211; review and editing&#59;</p><p id="par0245" class="elsevierStylePara elsevierViewall">Xavier Santiveri&#58; Statistical analysis&#44; interpretation of results&#59;</p><p id="par0250" class="elsevierStylePara elsevierViewall">Elvira Bisbe&#58; Study design&#44; patient recruitment&#44; interpretation of results&#44; writing &#8211; review and editing&#46;</p></span><span id="sec0095" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0165">Financial support and sponsorship</span><p id="par0255" class="elsevierStylePara elsevierViewall">This work was funded by the Hospital del Mar&#44; Barcelona&#44; Spain&#44; with no external funding&#46;</p></span><span id="sec0100" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0170">Declaration of interest</span><p id="par0260" class="elsevierStylePara elsevierViewall">None&#46;</p></span></span>"
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              "titulo" => "Secondary objective"
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              "titulo" => "Transfusion"
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              "titulo" => "Length of stay"
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              "titulo" => "Major adverse events unrelated to TXA"
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    "fechaRecibido" => "2021-01-26"
    "fechaAceptado" => "2021-05-18"
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            0 => "Tranexamic acid"
            1 => "Surgical"
            2 => "Patient Blood Management"
            3 => "Total knee replacement"
            4 => "Blood loss"
            5 => "Tourniquets"
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            0 => "&#193;cido tranex&#225;mico"
            1 => "Cirug&#237;a"
            2 => "<span class="elsevierStyleItalic">Patient Blood Management</span>"
            3 => "Pr&#243;tesis total de rodilla"
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    "resumen" => array:2 [
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        "titulo" => "Abstract"
        "resumen" => "<span id="abst0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0010">Background and objectives</span><p id="spar0050" class="elsevierStyleSimplePara elsevierViewall">The ideal timing of tranexamic acid administration in total knee arthroplasty with tourniquet remains unclear&#46; Our primary objective was to prove if administering it before surgical incision&#44; instead of before releasing the tourniquet&#44; reduces postoperative bleeding&#46; A second objective was to determine whether a second dose reduces post-operative bleeding&#46;</p></span> <span id="abst0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Material and methods</span><p id="spar0055" class="elsevierStyleSimplePara elsevierViewall">A prospective&#44; double-blind clinical trial was performed on 212 patients scheduled for total knee arthroplasty&#46; They were randomised into 4 groups&#46; Tranexamic acid was administered before the surgical incision in &#8220;pre-induction groups&#8221; &#40;1 and 2&#41;&#44; and just before the tourniquet release in &#8220;pre-release groups&#8221; &#40;3 and 4&#41;&#46; Groups 2 and 4 received a second dose 3<span class="elsevierStyleHsp" style=""></span>h post-surgery&#46; Main outcome was postoperative bleeding &#40;visible blood loss and calculated total bleeding&#41;&#46; Secondary outcomes were haemoglobin variations&#44; complications and transfusion rate&#46;</p></span> <span id="abst0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0020">Results</span><p id="spar0060" class="elsevierStyleSimplePara elsevierViewall">The mean calculated total bleeding was 1563<span class="elsevierStyleHsp" style=""></span>ml &#40;95&#37;CI&#58; 1445&#8211;1681&#41; in preinduction groups versus 1576<span class="elsevierStyleHsp" style=""></span>ml &#40;95&#37;CI&#58; 1439&#8211;1713&#41; in pre-release groups &#40;<span class="elsevierStyleItalic">P</span><span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;9&#41;&#59; 1579<span class="elsevierStyleHsp" style=""></span>ml &#40;95&#37;CI&#58; 1452&#8211;1706&#41; in single-dose groups versus 1559<span class="elsevierStyleHsp" style=""></span>ml &#40;95&#37;CI&#58; 1431&#8211;1686&#41; in double-dose groups &#40;<span class="elsevierStyleItalic">P</span><span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;82&#41;&#46; One patient was transfused&#46; The mean haemoglobin at discharge was 10&#46;4<span class="elsevierStyleHsp" style=""></span>g&#47;dl &#40;95&#37;CI&#58; 10&#46;2&#8211;10&#46;7&#41; in singledose groups versus 10&#46;8 &#40;95&#37;CI&#58; 10&#46;6&#8211;11&#46;1&#41; in double-dose groups &#40;<span class="elsevierStyleItalic">P</span><span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;06&#41;&#46;</p></span> <span id="abst0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Conclusions</span><p id="spar0065" class="elsevierStyleSimplePara elsevierViewall">There were no differences in bleeding or transfusion regarding the time of tranexamic acid administration&#46; The second dose had not impact on outcomes&#46;</p></span> <span id="abst0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0030">Trial registration</span><p id="spar0070" class="elsevierStyleSimplePara elsevierViewall">EudraCT 2016-000071-24&#46;</p></span>"
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            "titulo" => "Material and methods"
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        "resumen" => "<span id="abst0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0040">Antecedentes y objetivos</span><p id="spar0075" class="elsevierStyleSimplePara elsevierViewall">El momento &#243;ptimo para la administraci&#243;n de &#225;cido tranex&#225;mico en la artroplastia de rodilla con torniquete no est&#225; claro&#46; El objetivo principal de nuestro estudio era demostrar si su administraci&#243;n tras la inducci&#243;n anest&#233;sica reduce el sangrado postoperatorio respecto a administrarlo antes de la liberaci&#243;n del torniquete&#46; Nuestro objetivo secundario era determinar si una segunda dosis reduce significativamente el sangrado&#46;</p></span> <span id="abst0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0045">Material y m&#233;todos</span><p id="spar0080" class="elsevierStyleSimplePara elsevierViewall">Ensayo cl&#237;nico prospectivo con 212 pacientes programados para pr&#243;tesis total de rodilla&#44; aleatorizados en 4 grupos&#46; El &#225;cido tranex&#225;mico se administr&#243; antes de la isquemia en los &#171;grupos preinducci&#243;n&#187; &#40;1 y 2&#41; y justo antes de la liberaci&#243;n del torniquete en los &#171;grupos preliberaci&#243;n&#187; &#40;3 y 4&#41;&#46; Los grupos 2 y 4 recibieron una segunda dosis 3 h despu&#233;s&#46; La variable principal fue el sangrado postoperatorio &#40;visible y el calculado&#41;&#46; Las variables secundarias fueron la variaci&#243;n de hemoglobina&#44; complicaciones y transfusi&#243;n&#46;</p></span> <span id="abst0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0050">Resultados</span><p id="spar0085" class="elsevierStyleSimplePara elsevierViewall">El sangrado total calculado fue 1563<span class="elsevierStyleHsp" style=""></span>ml &#40;IC 95&#37;&#58; 1445&#8211;1681&#41; en los grupos preinducci&#243;n frente a 1576<span class="elsevierStyleHsp" style=""></span>ml &#40;IC 95&#37;&#58; 1439&#8211;1713&#41; en los preliberaci&#243;n &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;9&#41;&#59; los de dosis &#250;nica sangraron 1579<span class="elsevierStyleHsp" style=""></span>ml &#40;IC 95&#37;&#58; 1452&#8211;1706&#41; frente a 1559 ml &#40;IC 95&#37;&#58; 1431&#8211;1686&#41; en los de 2 dosis &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;82&#41;&#46; La hemoglobina al alta fue 10&#44;4 &#40;IC 95&#37;&#58; 10&#44;2&#8211;10&#44;7&#41; con una dosis frente a 10&#44;8<span class="elsevierStyleHsp" style=""></span>g&#47;dl &#40;IC 95&#37;&#58; 10&#44;6&#8211;11&#44;1&#41; con 2 dosis &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;06&#41;&#46;</p></span> <span id="abst0045" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0055">Conclusiones</span><p id="spar0090" class="elsevierStyleSimplePara elsevierViewall">No se detectaron diferencias en sangrado ni transfusi&#243;n dependiendo del momento de administraci&#243;n del &#225;cido tranex&#225;mico&#46; Una segunda dosis tampoco tuvo impacto significativo&#46;</p></span> <span id="abst0050" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0060">Registro de ensayo cl&#237;nico</span><p id="spar0095" class="elsevierStyleSimplePara elsevierViewall">EudraCT 2016-000071-24&#46;</p></span>"
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                  \t\t\t\t\ttable-entry\n
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                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleItalic">Preoperative Hb &#40;g&#47;dl&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">13&#46;91<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>1&#46;02&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">14&#46;52<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>1&#46;20&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">14&#46;08<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>1&#46;27&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
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                  \t\t\t\t\ttop\n
                  \t\t\t\t">14&#46;31<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>1&#46;09&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
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                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleItalic">Preoperative HCT &#40;&#37;&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
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                  \t\t\t\t\ttop\n
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                  \t\t\t\t\ttop\n
                  \t\t\t\t">43&#46;75<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>3&#46;40&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
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                  \t\t\t\t\ttop\n
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                  \t\t\t\t</td><td class="td" title="\n
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                  \t\t\t\t\ttop\n
                  \t\t\t\t">43&#46;77<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>3&#46;06&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
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                  \t\t\t\t\ttop\n
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                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleItalic">Preoperative FEV &#40;no&#46; &#91;&#37;&#93;&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
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                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#91;0&#46;6&#93;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#91;0&#46;6&#93;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2 &#91;1&#46;1&#93;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
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                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#91;0&#46;6&#93;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
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                  \t\t\t\t\ttop\n
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                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleItalic">Preoperative EPO &#40;no&#46; &#91;&#37;&#93;&#41;</span>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
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                  \t\t\t\t\ttop\n
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                  \t\t\t\t">0 &#91;0&#46;0&#93;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#91;0&#46;0&#93;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
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                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#91;0&#46;6&#93;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;54&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleItalic">Spinal anaesthesia &#40;no&#46; &#91;&#37;&#93;&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">44 &#91;100&#93;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">39 &#91;95&#46;1&#93;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">48 &#91;97&#46;9&#93;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">41 &#91;97&#46;6&#93;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
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                  \t\t\t\t">0&#46;99&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
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                  \t\t\t\t">Surgery time &#40;min&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">75&#46;91<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>18&#46;66&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">73&#46;93<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>14&#46;21&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">71&#46;57<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>17&#46;0&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">72&#46;67<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>16&#46;08&nbsp;\t\t\t\t\t\t\n
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          "leyenda" => "<p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">Values expressed as mean &#40;SD&#41; or number &#91;&#37;&#93; for each group&#46; ASA&#44; American Society of Anaesthesiologists physical status classification&#59; BMI&#44; body mass index&#59; EPO&#44; erythropoietin&#59; FEV&#44; intravenous iron&#59; Hb&#44; haemoglobin&#59; HCT&#44; haematocrit&#46;</p>"
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                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Groups 2<span class="elsevierStyleHsp" style=""></span>&#43;<span class="elsevierStyleHsp" style=""></span>4 &#40;n<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>83&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">72&#46;52<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>8&#46;67&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">0&#46;27&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">72&#46;24<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>8&#46;54&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
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                  \t\t\t\t">71&#46;37<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>7&#46;37&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">0&#46;47&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t"><span class="elsevierStyleItalic">Visible blood loss &#40;ml&#41;</span>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t"><span class="elsevierStyleItalic">Calculated blood loss &#40;ml&#41;</span>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t"><span class="elsevierStyleItalic">Length of stay &#40;days&#41;</span>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t"><span class="elsevierStyleItalic">Intraop&#46; adverse events &#91;&#37;&#93;</span></td></tr><tr title="table-row"><td class="td-with-role" title="\n
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                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Hypotension&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>PNV&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Arrhythmia&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t"><span class="elsevierStyleItalic">In-hospital adverse events &#91;&#37;&#93;</span></td></tr><tr title="table-row"><td class="td-with-role" title="\n
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                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Allergy&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">2 &#91;2&#46;19&#93;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Hypotension&nbsp;\t\t\t\t\t\t\n
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Article information

ISSN: 23411929
Original language: English

DOI:10.1016/j.redare.2021.05.021

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