Expert's corner: a personal approach
Outpatient surgery anesthesia
B.I. Garduño-Chávez
, D. Palacios-Rios, G.M. Cornejo
Corresponding author
belia_garduno@yahoo.com
Corresponding author at: Servicio de Anestesiología del Hospital Universitario “Dr. José Eleuterio González”, de la UANL, Av. Francisco I. Madero y Gonzalitos Colonia Mitras Centro, C.P. 64460 Monterrey, N.L., Mexico. Tel.: +52 81 8389 1111x2514.
Corresponding author at: Servicio de Anestesiología del Hospital Universitario “Dr. José Eleuterio González”, de la UANL, Av. Francisco I. Madero y Gonzalitos Colonia Mitras Centro, C.P. 64460 Monterrey, N.L., Mexico. Tel.: +52 81 8389 1111x2514.
Service of Anesthesiology, “Dr. José Eleuterio González” University Hospital, Universidad Autónoma de Nuevo León, Monterrey, N.L., Mexico
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"apellidos" => "Bosques-Padilla" ] 2 => array:2 [ "nombre" => "L.A." "apellidos" => "Morales-Garza" ] ] ] ] ] "idiomaDefecto" => "en" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S1665579616300540?idApp=UINPBA00004N" "url" => "/16655796/0000001800000071/v1_201608180032/S1665579616300540/v1_201608180032/en/main.assets" ] "en" => array:15 [ "idiomaDefecto" => true "cabecera" => "<span class="elsevierStyleTextfn">Expert's corner: a personal approach</span>" "titulo" => "Outpatient surgery anesthesia" "tieneTextoCompleto" => true "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "130" "paginaFinal" => "133" ] ] "autores" => array:1 [ 0 => array:4 [ "autoresLista" => "B.I. Garduño-Chávez, D. Palacios-Rios, G.M. Cornejo" "autores" => array:3 [ 0 => array:4 [ "nombre" => "B.I." "apellidos" => "Garduño-Chávez" "email" => array:1 [ 0 => "belia_garduno@yahoo.com" ] "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">*</span>" "identificador" => "cor0005" ] ] ] 1 => array:2 [ "nombre" => "D." "apellidos" => "Palacios-Rios" ] 2 => array:2 [ "nombre" => "G.M." "apellidos" => "Cornejo" ] ] "afiliaciones" => array:1 [ 0 => array:2 [ "entidad" => "Service of Anesthesiology, “Dr. José Eleuterio González” University Hospital, Universidad Autónoma de Nuevo León, Monterrey, N.L., Mexico" "identificador" => "aff0005" ] ] "correspondencia" => array:1 [ 0 => array:3 [ "identificador" => "cor0005" "etiqueta" => "⁎" "correspondencia" => "Corresponding author at: Servicio de Anestesiología del Hospital Universitario “Dr. José Eleuterio González”, de la UANL, Av. Francisco I. Madero y Gonzalitos Colonia Mitras Centro, C.P. 64460 Monterrey, N.L., Mexico. Tel.: +52 81 8389 1111x2514." ] ] ] ] "resumenGrafico" => array:2 [ "original" => 0 "multimedia" => array:7 [ "identificador" => "fig0005" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 2088 "Ancho" => 2503 "Tamanyo" => 206241 ] ] "descripcion" => array:1 [ "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Society for Ambulatory Anesthesia Consensus Statement on Preoperative Selection of Adult. Patients with Obstructive Sleep Apnea Scheduled for Ambulatory Surgery Girish P. Joshi, MBBS, MD, FFARSCI,* Saravanan P. Ankichetty, MD, DA, MBA,† Tong J. Gan, MD, MHS, FRCA,‡ and Frances Chung, MBBS, FRCPC†.</p>" ] ] ] "textoCompleto" => "<span class="elsevierStyleSections"><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0005">Introduction</span><p id="par0005" class="elsevierStylePara elsevierViewall">Outpatient surgery has become more popular amongst patients with more complex morbidities as well as for more complex and more invasive procedures. In the same vein, we ought to stress the importance of improving postoperative recovery conditions in order to enable the patient's discharge and fast reintegration to his/her everyday activities. To that end, we must have wide control of the patient's physical condition from the preoperative stage. That is, to place patients in an optimal health status to the extent possible prior to procedure and search for more adequate anesthetic techniques to optimize surgical conditions, and thus try to ensure a fast recovery with minimum side effects and preventing possible postoperative complications.</p><p id="par0010" class="elsevierStylePara elsevierViewall">In order to accomplish this, multidisciplinary work is required for the perioperative care, where anesthesiologists play a major role.</p><p id="par0015" class="elsevierStylePara elsevierViewall">For all practical purposes, we can conceptualize outpatient surgery as a qualified surgery. That is, a true surgery conducted within the safety framework provided by an operating room. The term “outpatient” can be defined as any medical, organizational and administrative practice which allows for the patient to leave the clinic on the same day the procedure took place (hospital stay must be less than or equal to 12<span class="elsevierStyleHsp" style=""></span>h).</p><p id="par0020" class="elsevierStylePara elsevierViewall">According to the Mexican NOM-026-SSA3-2012 for the practice of major outpatient surgery, section 4.2 states that the patient's discharge from the Major Outpatient Surgery Unit will be made within a time lapse no longer than 12<span class="elsevierStyleHsp" style=""></span>h, considering from the moment they were admitted, during which the surgical act took place and their post-anesthetic recovery had concluded.<a class="elsevierStyleCrossRef" href="#bib0025"><span class="elsevierStyleSup">1</span></a> Around 40% of surgeries today are of this modality, leaving a considerable progression margin. The objective is to reach first world countries’ rates, which are close to 80%.</p><p id="par0025" class="elsevierStylePara elsevierViewall">Institutions which have structures for outpatient surgery are subjected to regulation. Outpatient surgery is an alternative to a practice usually performed under traditional hospitalization and only concerns those patients who are to undergo medical intervention or a surgical procedure impracticable in the physician's office. Nevertheless, even though some external practices are conducted under the Outpatient Surgery Unit framework, these are not applicable to the regulations (safety, organization), resource assignation or relative rate fixation to outpatient surgery.<a class="elsevierStyleCrossRef" href="#bib0025"><span class="elsevierStyleSup">1</span></a> Outpatient structure should ensure the patient and organization and function which contemplates all these imperatives.</p><p id="par0030" class="elsevierStylePara elsevierViewall">The final choice regarding the selection of a patient, an operation or medical intervention of outpatient assistance is the responsibility of the anesthesiologist and the physician in charge of intervention, if the latter were to be involved. The competence of the physicians who administer anesthesia ought to be adapted to the patient's status, the procedure, and comorbidities.</p><p id="par0035" class="elsevierStylePara elsevierViewall">The International Association for Ambulatory Surgery (IAAS) and the Association Française de Chirurgie Ambulatoire (AFCA by its French acronym)agree on the fact that the list of interventions where an outpatient treatment is justified are unnecessary. The decision of indicating a treatment of this sort is the responsibility of the surgeon and anesthesiologist, always according to the conditions or physical state of the patient, type of surgery and conditions of the place.<a class="elsevierStyleCrossRef" href="#bib0030"><span class="elsevierStyleSup">2</span></a> However, it would be convenient to have a clear consensus amongst physicians with previously established rules and procedures, especially about conduct related to duration and follow-up.</p><p id="par0040" class="elsevierStylePara elsevierViewall">The Society for Ambulatory Anesthesia conducted a consensus for the elaboration of an algorithm in the selection of adult patients with sleep obstructive apnea syndrome (SOA) programed for outpatient surgery (<a class="elsevierStyleCrossRef" href="#fig0005">Fig. 1</a>), which is guided according to comorbidities and the use of CPAP and other factors, thus facilitating the specialists’ decision whether or not to proceed to outpatient surgery with these kinds of patients.</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><p id="par0045" class="elsevierStylePara elsevierViewall">On the other hand, the American Society of Anesthesiologists (ASA), using a different consensus, established a series of criteria through which we are able to guide the selection of cases and patients. Below are the criteria:</p><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0010">Selection criteria for patients for outpatient anesthesia</span><p id="par0050" class="elsevierStylePara elsevierViewall"><ul class="elsevierStyleList" id="lis0005"><li class="elsevierStyleListItem" id="lsti0005"><span class="elsevierStyleLabel"><span class="elsevierStyleBold">•</span></span><p id="par0055" class="elsevierStylePara elsevierViewall">American Society of Anesthesiologists (ASA) class I, II or III stabilized.</p></li><li class="elsevierStyleListItem" id="lsti0010"><span class="elsevierStyleLabel"><span class="elsevierStyleBold">•</span></span><p id="par0060" class="elsevierStylePara elsevierViewall">Age: no children under six months of age; advanced age is not a contraindication.</p></li><li class="elsevierStyleListItem" id="lsti0015"><span class="elsevierStyleLabel"><span class="elsevierStyleBold">•</span></span><p id="par0065" class="elsevierStylePara elsevierViewall">Urgency contraindication (with certain restrictions).</p></li><li class="elsevierStyleListItem" id="lsti0020"><span class="elsevierStyleLabel"><span class="elsevierStyleBold">•</span></span><p id="par0070" class="elsevierStylePara elsevierViewall">The patient ought to be accompanied during his return home.</p></li><li class="elsevierStyleListItem" id="lsti0025"><span class="elsevierStyleLabel"><span class="elsevierStyleBold">•</span></span><p id="par0075" class="elsevierStylePara elsevierViewall">A responsible person ought to accompany the patient during the night following intervention.</p></li><li class="elsevierStyleListItem" id="lsti0030"><span class="elsevierStyleLabel"><span class="elsevierStyleBold">•</span></span><p id="par0080" class="elsevierStylePara elsevierViewall">The patient must have a working phone line.</p></li><li class="elsevierStyleListItem" id="lsti0035"><span class="elsevierStyleLabel"><span class="elsevierStyleBold">•</span></span><p id="par0085" class="elsevierStylePara elsevierViewall">The patient's address must be less than 1<span class="elsevierStyleHsp" style=""></span>h from the health center (or at least from a care unit)</p></li><li class="elsevierStyleListItem" id="lsti0040"><span class="elsevierStyleLabel"><span class="elsevierStyleBold">•</span></span><p id="par0090" class="elsevierStylePara elsevierViewall">It is indispensable for the patient to have a good comprehension level.</p></li></ul></p><p id="par0095" class="elsevierStylePara elsevierViewall">Today, the most severe complications (respiratory failure, severe myocardium infarct, pulmonary thromboembolism) and mortality in outpatient surgery are not frequent. Mortality is reported to be as low as 1 in every 11,273 patients, and adverse effects rate is 0.08%.</p></span></span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Comorbidities</span><p id="par0100" class="elsevierStylePara elsevierViewall">Most diseases do not represent a contraindication for outpatient modality. However, some should be taken into account according to their severity, due to the potential risks (essentially respiratory or cardiocirculatory): morbid obesity, sleep apnea syndrome, coronaropathy, asthma, renal failure, etc. Regarding ASA III patients, Ansell et al. have retrospectively evaluated the evolution in these types of patients after an outpatient surgery. Out of the 30,000 patients treated in outpatient modality between 1998 and 2002, 3.3% were classified as ASA III.</p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0020">Age</span><p id="par0105" class="elsevierStylePara elsevierViewall">Several studies have evaluated the influence of age on outpatient surgery perioperative complications. Some results are contradictory. A cohort studywith over 15,000 patients reveals that age is not predictive of hospitalization after outpatient surgery. However, Chung et al. have demonstrated an association between an age over 65 and a rise in the risk of intraoperative complications, especially cardiovascular ones. On the other hand, incidence of postoperative adverse occurrences (PONV, pain, vertigo) was significantly lower in patients of advanced age. Fleisher et al. analyzed death and hospitalization risk factors after an outpatient surgery. For death risk or hospital readmission within seven days after surgery, the most significant factorsrelated to the patient, were an age over 85 years and a hospitalization in the months previous to surgery.</p><p id="par0110" class="elsevierStylePara elsevierViewall">The surgeon is the one who decides the indication of outpatient surgery for any given surgical intervention, and the anesthesiologist is the one who confirms the feasibility of the procedure during the anesthetic consultation. The NOM-026-SSA3-2012 for the practice of major outpatient surgery section 6.1.2 states that pre-anesthetic assessment and the medical specialties which result, ought to take place within five days prior to surgery. Also, the patient ought to be in an ASA I or II physical status as stated in section 6.1.3.</p><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Sleep obstructive apnea syndrome (SOA)</span><p id="par0115" class="elsevierStylePara elsevierViewall">Sleep obstructive apnea syndrome is a common problem which is being detected more and more frequently. However, there is a lack of research culture in the patient as well as in the physician, a culture of intentionally searching for clinical data which leads us to a diagnosis for it, especially prior to a surgical procedure. This is linked to somnolence during the day, cognitive dysfunction, and cardiovascular problems such as hypertension, ischemic cardiac disease, arrhythmias, pulmonary hypertension and congestive heart failure, as well as metabolic dysfunction and a decrease in quality of life.<a class="elsevierStyleCrossRef" href="#bib0035"><span class="elsevierStyleSup">3</span></a> (<a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a>)</p><elsevierMultimedia ident="tbl0005"></elsevierMultimedia><p id="par0120" class="elsevierStylePara elsevierViewall">A clinical practical guide for perioperative patients with sleep obstructive apnea syndrome indicates that patients with SOA have an elevated morbidity and mortality risk due to the potential difficulty of airway management. The ASA states the evaluation allow for a timely identification of patients with SOA, including (1) research of medical background, (2) interview with the patient and relative, (3) physical examination.</p><p id="par0125" class="elsevierStylePara elsevierViewall">During the scrutiny of patients with probable SOA diagnosis, we must interrogate the patient and his/her family, focused on a history of snoring, apnea episodes, sudden awakenings during the night, morning headaches and sleepiness throughout the day. Physical examination should include airway evaluation as well as characteristics of the nasopharynx and tongue size. The anesthesiologist and surgeon must decide whether to handle the patient perioperatively based solely on clinical criteria or to complement it with more extensive studies and begin treatment. In any case, the patient and their relatives should be informed of the potential complications during the procedure in a patient with SOA. Regarding preoperative preparation recommendations, it is recommended to use a CPAP device or any device for non-invasive ventilation, and the use of a mandibular advance device and weight loss if necessary.</p><p id="par0130" class="elsevierStylePara elsevierViewall">In patients with diagnosed SOA, perioperative complications have been linked to a relationship between comorbidities and the use of opioids. Patients who do not maintain a proper medical control are not candidates for outpatient surgery. Among the complications which have been linked to this disease are hypoxemia, arrhythmias, myocardium ischemic damage, unanticipated admittance to the intensive care unit and sudden death.</p><p id="par0135" class="elsevierStylePara elsevierViewall">Advanced age itself does not necessarily represent a contraindication for outpatient surgery, taking into account the patient's comorbidities, general functional state and physiological reserves. Nevertheless, there is a statistically significant increased risk of perioperative mortality.<a class="elsevierStyleCrossRef" href="#bib0040"><span class="elsevierStyleSup">4</span></a></p></span></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0030">Funding</span><p id="par0140" class="elsevierStylePara elsevierViewall">No financial support was provided.</p></span></span>" "textoCompletoSecciones" => array:1 [ "secciones" => array:5 [ 0 => array:3 [ "identificador" => "sec0005" "titulo" => "Introduction" "secciones" => array:1 [ 0 => array:2 [ "identificador" => "sec0010" "titulo" => "Selection criteria for patients for outpatient anesthesia" ] ] ] 1 => array:2 [ "identificador" => "sec0015" "titulo" => "Comorbidities" ] 2 => array:3 [ "identificador" => "sec0020" "titulo" => "Age" "secciones" => array:1 [ 0 => array:2 [ "identificador" => "sec0025" "titulo" => "Sleep obstructive apnea syndrome (SOA)" ] ] ] 3 => array:2 [ "identificador" => "sec0030" "titulo" => "Funding" ] 4 => array:1 [ "titulo" => "References" ] ] ] "pdfFichero" => "main.pdf" "tienePdf" => true "fechaRecibido" => "2016-04-26" "fechaAceptado" => "2016-04-26" "multimedia" => array:2 [ 0 => array:7 [ "identificador" => "fig0005" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 2088 "Ancho" => 2503 "Tamanyo" => 206241 ] ] "descripcion" => array:1 [ "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Society for Ambulatory Anesthesia Consensus Statement on Preoperative Selection of Adult. Patients with Obstructive Sleep Apnea Scheduled for Ambulatory Surgery Girish P. Joshi, MBBS, MD, FFARSCI,* Saravanan P. Ankichetty, MD, DA, MBA,† Tong J. Gan, MD, MHS, FRCA,‡ and Frances Chung, MBBS, FRCPC†.</p>" ] ] 1 => array:8 [ "identificador" => "tbl0005" "etiqueta" => "Table 1" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at1" "detalle" => "Table " "rol" => "short" ] ] "tabla" => array:1 [ "tablatextoimagen" => array:1 [ 0 => array:2 [ "tabla" => array:1 [ 0 => """ <table border="0" frame="\n \t\t\t\t\tvoid\n \t\t\t\t" class=""><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Intraoperative \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Failed or difficult ventilation with a mask orendotracheal intubation \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Difficulty maintaining adequate oxygen saturation \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " colspan="2" align="left" valign="top"><span class="elsevierStyleVsp" style="height:0.5px"></span></td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Postoperative (immediate) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Delayed extubation \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Obstruction and/or desaturation afterextubation \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Post-obstructive pulmonary edema \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Need for re-intubation \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Exacerbation of cardiac comorbidities: \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Hypertension, arrhythmias, myocardial ischemia or infarction, pulmonary hypertension and heart failure. \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Cerebrovascular disorders \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Prolonged stay in the post-anesthetic care unit \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Delayeddischarge \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " colspan="2" align="left" valign="top"><span class="elsevierStyleVsp" style="height:0.5px"></span></td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Post-discharge \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Return to the hospital after discharge \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Brain death by cerebral hypoxia and death \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] "imagenFichero" => array:1 [ 0 => "xTab1182397.png" ] ] ] ] "descripcion" => array:1 [ "en" => "<p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Considerations for patients with sleep obstructive apnea syndrome in ambulatory surgery.</p>" ] ] ] "bibliografia" => array:2 [ "titulo" => "References" "seccion" => array:1 [ 0 => array:2 [ "identificador" => "bibs0005" "bibliografiaReferencia" => array:4 [ 0 => array:3 [ "identificador" => "bib0025" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Anestesia del paciente ambulatorio" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:4 [ 0 => "H. Massa" 1 => "S. Hubert" 2 => "M. Carles" 3 => "M. Raucoules-Aimé" ] ] ] ] ] "host" => array:1 [ 0 => array:1 [ "Revista" => array:4 [ "tituloSerie" => "EMC – Anest-Reanim" "fecha" => "2010" "paginaInicial" => "1" "paginaFinal" => "20" ] ] ] ] ] ] 1 => array:3 [ "identificador" => "bib0030" "etiqueta" => "2" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Cirugía ambulatoria, selección de pacientes y procedimientos quirúrgicos" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:3 [ 0 => "N.J. Claudio" 1 => "Z.H. Maximiliano" 2 => "G.A. Alejandro" ] ] ] ] ] "host" => array:1 [ 0 => array:1 [ "Revista" => array:5 [ "tituloSerie" => "Rev Chilena Cir" "fecha" => "2015" "volumen" => "67" "paginaInicial" => "207" "paginaFinal" => "213" ] ] ] ] ] ] 2 => array:3 [ "identificador" => "bib0035" "etiqueta" => "3" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Society for Ambulatory Anesthesia consensus statement on preoperative selection of adult patients with obstructive sleep apnea scheduled for ambulatory surgery" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:4 [ 0 => "G.P. Joshi" 1 => "S.P. Ankichetty" 2 => "T.J. Gan" 3 => "F. Chung" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1213/ANE.0b013e318269cfd7" "Revista" => array:6 [ "tituloSerie" => "Anesth Analg" "fecha" => "2012" "volumen" => "115" "paginaInicial" => "1060" "paginaFinal" => "1068" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/22886843" "web" => "Medline" ] ] ] ] ] ] ] ] 3 => array:3 [ "identificador" => "bib0040" "etiqueta" => "4" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Practice guidelines for the perioperative management of patients with obstructive sleep apnea: an updated report by the American Society of Anesthesiologists Task Force on Perioperative Management of patients with obstructive sleep apnea" "autores" => array:1 [ 0 => array:2 [ "colaboracion" => "American Society of Anesthesiologists Task Force on Perioperative Management of patients with obstructive sleep apnea" "etal" => false ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1097/ALN.0000000000000053" "Revista" => array:6 [ "tituloSerie" => "Anesthesiology" "fecha" => "2014" "volumen" => "120" "paginaInicial" => "268" "paginaFinal" => "286" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/24346178" "web" => "Medline" ] ] ] ] ] ] ] ] ] ] ] ] ] "idiomaDefecto" => "en" "url" => "/16655796/0000001800000071/v1_201608180032/S1665579616300643/v1_201608180032/en/main.assets" "Apartado" => array:4 [ "identificador" => "55400" "tipo" => "SECCION" "es" => array:2 [ "titulo" => "Expert's corner: a personal approach" "idiomaDefecto" => true ] "idiomaDefecto" => "es" ] "PDF" => "https://static.elsevier.es/multimedia/16655796/0000001800000071/v1_201608180032/S1665579616300643/v1_201608180032/en/main.pdf?idApp=UINPBA00004N&text.app=https://www.elsevier.es/" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S1665579616300643?idApp=UINPBA00004N" ]
| Year/Month | Html | Total | |
|---|---|---|---|
| 2024 November | 11 | 1 | 12 |
| 2024 October | 56 | 6 | 62 |
| 2024 September | 96 | 12 | 108 |
| 2024 August | 53 | 11 | 64 |
| 2024 July | 35 | 8 | 43 |
| 2024 June | 42 | 12 | 54 |
| 2024 May | 32 | 4 | 36 |
| 2024 April | 41 | 9 | 50 |
| 2024 March | 45 | 6 | 51 |
| 2024 February | 57 | 5 | 62 |
| 2024 January | 67 | 13 | 80 |
| 2023 December | 46 | 26 | 72 |
| 2023 November | 39 | 13 | 52 |
| 2023 October | 68 | 15 | 83 |
| 2023 September | 48 | 5 | 53 |
| 2023 August | 65 | 16 | 81 |
| 2023 July | 67 | 11 | 78 |
| 2023 June | 57 | 10 | 67 |
| 2023 May | 82 | 29 | 111 |
| 2023 April | 46 | 15 | 61 |
| 2023 March | 63 | 6 | 69 |
| 2023 February | 47 | 22 | 69 |
| 2023 January | 56 | 9 | 65 |
| 2022 December | 44 | 8 | 52 |
| 2022 November | 60 | 23 | 83 |
| 2022 October | 72 | 24 | 96 |
| 2022 September | 73 | 20 | 93 |
| 2022 August | 77 | 9 | 86 |
| 2022 July | 34 | 16 | 50 |
| 2022 June | 46 | 11 | 57 |
| 2022 May | 43 | 8 | 51 |
| 2022 April | 77 | 15 | 92 |
| 2022 March | 70 | 11 | 81 |
| 2022 February | 43 | 8 | 51 |
| 2022 January | 93 | 14 | 107 |
| 2021 December | 43 | 10 | 53 |
| 2021 November | 49 | 9 | 58 |
| 2021 October | 46 | 23 | 69 |
| 2021 September | 62 | 9 | 71 |
| 2021 August | 74 | 10 | 84 |
| 2021 July | 55 | 15 | 70 |
| 2021 June | 68 | 22 | 90 |
| 2021 May | 48 | 11 | 59 |
| 2021 April | 193 | 33 | 226 |
| 2021 March | 84 | 8 | 92 |
| 2021 February | 76 | 16 | 92 |
| 2021 January | 76 | 23 | 99 |
| 2020 December | 95 | 23 | 118 |
| 2020 November | 99 | 18 | 117 |
| 2020 October | 52 | 22 | 74 |
| 2020 September | 43 | 16 | 59 |
| 2020 August | 54 | 9 | 63 |
| 2020 July | 40 | 9 | 49 |
| 2020 June | 38 | 10 | 48 |
| 2020 May | 52 | 11 | 63 |
| 2020 April | 46 | 24 | 70 |
| 2020 March | 71 | 2 | 73 |
| 2020 February | 54 | 6 | 60 |
| 2020 January | 33 | 6 | 39 |
| 2019 December | 39 | 16 | 55 |
| 2019 November | 31 | 2 | 33 |
| 2019 October | 26 | 4 | 30 |
| 2019 September | 37 | 12 | 49 |
| 2019 August | 15 | 7 | 22 |
| 2019 July | 28 | 6 | 34 |
| 2019 June | 27 | 17 | 44 |
| 2019 May | 68 | 23 | 91 |
| 2019 April | 38 | 6 | 44 |
| 2019 March | 6 | 3 | 9 |
| 2019 February | 5 | 4 | 9 |
| 2019 January | 6 | 5 | 11 |
| 2018 December | 4 | 1 | 5 |
| 2018 November | 12 | 2 | 14 |
| 2018 October | 16 | 11 | 27 |
| 2018 September | 22 | 2 | 24 |
| 2018 August | 2 | 2 | 4 |
| 2018 July | 4 | 1 | 5 |
| 2018 June | 7 | 0 | 7 |
| 2018 May | 6 | 4 | 10 |
| 2018 April | 8 | 1 | 9 |
| 2018 March | 7 | 0 | 7 |
| 2018 February | 3 | 0 | 3 |
| 2018 January | 8 | 0 | 8 |
| 2017 December | 4 | 0 | 4 |
| 2017 November | 8 | 2 | 10 |
| 2017 October | 5 | 1 | 6 |
| 2017 September | 4 | 3 | 7 |
| 2017 August | 11 | 1 | 12 |
| 2017 July | 8 | 8 | 16 |
| 2017 June | 14 | 13 | 27 |
| 2017 May | 19 | 3 | 22 |
| 2017 April | 16 | 3 | 19 |
| 2017 March | 23 | 72 | 95 |
| 2017 February | 17 | 4 | 21 |
| 2017 January | 17 | 1 | 18 |
| 2016 December | 32 | 4 | 36 |
| 2016 November | 32 | 9 | 41 |
| 2016 October | 31 | 8 | 39 |
| 2016 September | 31 | 5 | 36 |
| 2016 August | 24 | 4 | 28 |
| 2016 July | 0 | 1 | 1 |
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