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"apellidos" => "Bellosta-López" ] ] ] ] ] "idiomaDefecto" => "en" "Traduccion" => array:1 [ "es" => array:9 [ "pii" => "S0213485319301446" "doi" => "10.1016/j.nrl.2019.09.010" "estado" => "S300" "subdocumento" => "" "abierto" => array:3 [ "ES" => true "ES2" => true "LATM" => true ] "gratuito" => true "lecturas" => array:1 [ "total" => 0 ] "idiomaDefecto" => "es" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S0213485319301446?idApp=UINPBA00004N" ] ] "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S2173580822000621?idApp=UINPBA00004N" "url" => "/21735808/0000003700000009/v1_202210280700/S2173580822000621/v1_202210280700/en/main.assets" ] "itemAnterior" => array:20 [ "pii" => "S2173580821001784" "issn" => "21735808" "doi" => "10.1016/j.nrleng.2019.07.009" "estado" => "S300" "fechaPublicacion" => "2022-11-01" "aid" => "1365" "copyright" => "Sociedad Española de Neurología" "documento" => "article" "crossmark" => 1 "licencia" => "http://creativecommons.org/licenses/by-nc-nd/4.0/" "subdocumento" => "rev" "cita" => "Neurologia. 2022;37:781-93" "abierto" => array:3 [ "ES" => true "ES2" => true "LATM" => true ] "gratuito" => true "lecturas" => array:1 [ "total" => 0 ] "en" => array:13 [ "idiomaDefecto" => true "cabecera" => "<span class="elsevierStyleTextfn">Review article</span>" "titulo" => "The effects of altered neurogenic microRNA levels and their involvement in the aggressiveness of periventricular glioblastoma" "tienePdf" => "en" "tieneTextoCompleto" => "en" "tieneResumen" => array:2 [ 0 => "en" 1 => "es" ] "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "781" "paginaFinal" => "793" ] ] "titulosAlternativos" => array:1 [ "es" => array:1 [ "titulo" => "Efecto de la alteración de los niveles de expresión de microARN neurogénicos y su implicación en la agresividad de glioblastomas localizados en la región paraventricular" ] ] "contieneResumen" => array:2 [ "en" => true "es" => true ] "contieneTextoCompleto" => array:1 [ "en" => true ] "contienePdf" => array:1 [ "en" => true ] "resumenGrafico" => array:2 [ "original" => 0 "multimedia" => array:8 [ "identificador" => "fig0015" "etiqueta" => "Figure 3" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr3.jpeg" "Alto" => 1844 "Ancho" => 2333 "Tamanyo" => 228250 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0015" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">Interactions between miRNAs and their target genes (diagram generated with the miRNet online platform). A total of 36 target genes are shown for the 8 miRNAs in the context of glioma, grouped in nodes for each miRNA-gene interaction, with an affinity value of 8.31e<span class="elsevierStyleSup">–11</span>.</p> <p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">The regulation of the <span class="elsevierStyleItalic">EGFR</span> and <span class="elsevierStyleItalic">CDK6</span> genes is particularly relevant. <span class="elsevierStyleItalic">EGFR</span> is regulated by at least 5 of the miRNAs described in this article (miR-21, miR-125, miR-137, miR-128, and let-7); this growth factor is generally overexpressed in GBM and is partially responsible for the increased cellular proliferation and evasion of apoptosis. The <span class="elsevierStyleItalic">CDK6</span> gene is regulated by 4 miRNAs (miR-124, miR-137, miR-21, and let-7); it is also overexpressed in GBM, and is associated with increased tumour progression, migration, and invasiveness.</p>" ] ] ] "autores" => array:1 [ 0 => array:2 [ "autoresLista" => "L.J. Reséndiz-Castillo, B. Minjarez, E.E. Reza-Zaldívar, M.A. Hernández-Sapiéns, Y.K. Gutiérrez-Mercado, A.A. Canales-Aguirre" "autores" => array:6 [ 0 => array:2 [ "nombre" => "L.J." "apellidos" => "Reséndiz-Castillo" ] 1 => array:2 [ "nombre" => "B." "apellidos" => "Minjarez" ] 2 => array:2 [ "nombre" => "E.E." "apellidos" => "Reza-Zaldívar" ] 3 => array:2 [ "nombre" => "M.A." "apellidos" => "Hernández-Sapiéns" ] 4 => array:2 [ "nombre" => "Y.K." "apellidos" => "Gutiérrez-Mercado" ] 5 => array:2 [ "nombre" => "A.A." "apellidos" => "Canales-Aguirre" ] ] ] ] ] "idiomaDefecto" => "en" "Traduccion" => array:1 [ "es" => array:9 [ "pii" => "S0213485319301379" "doi" => "10.1016/j.nrl.2019.07.005" "estado" => "S300" "subdocumento" => "" "abierto" => array:3 [ "ES" => true "ES2" => true "LATM" => true ] "gratuito" => true "lecturas" => array:1 [ "total" => 0 ] "idiomaDefecto" => "es" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S0213485319301379?idApp=UINPBA00004N" ] ] "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S2173580821001784?idApp=UINPBA00004N" "url" => "/21735808/0000003700000009/v1_202210280700/S2173580821001784/v1_202210280700/en/main.assets" ] "en" => array:20 [ "idiomaDefecto" => true "cabecera" => "<span class="elsevierStyleTextfn">Review article</span>" "titulo" => "Neoplastic meningitis in solid tumours: updated review of diagnosis, prognosis, therapeutic management, and future directions" "tieneTextoCompleto" => true "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "794" "paginaFinal" => "805" ] ] "autores" => array:1 [ 0 => array:4 [ "autoresLista" => "E. García Molina, M. Penas-Prado" "autores" => array:2 [ 0 => array:4 [ "nombre" => "E." "apellidos" => "García Molina" "email" => array:1 [ 0 => "estefania.garcia.molina@gmail.com" ] "referencia" => array:2 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "aff0005" ] 1 => array:2 [ "etiqueta" => "*" "identificador" => "cor0005" ] ] ] 1 => array:3 [ "nombre" => "M." "apellidos" => "Penas-Prado" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">b</span>" "identificador" => "aff0010" ] ] ] ] "afiliaciones" => array:2 [ 0 => array:3 [ "entidad" => "Servicio de Neurología, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain" "etiqueta" => "a" "identificador" => "aff0005" ] 1 => array:3 [ "entidad" => "Neuro-Oncology Branch, National Cancer Institute, Bethesda, Maryland, United States" "etiqueta" => "b" "identificador" => "aff0010" ] ] "correspondencia" => array:1 [ 0 => array:3 [ "identificador" => "cor0005" "etiqueta" => "⁎" "correspondencia" => "Corresponding author." ] ] ] ] "titulosAlternativos" => array:1 [ "es" => array:1 [ "titulo" => "Meningitis neoplásica en tumores sólidos: revisión actualizada de diagnóstico, pronóstico, manejo terapéutico y direcciones futuras" ] ] "resumenGrafico" => array:2 [ "original" => 0 "multimedia" => array:8 [ "identificador" => "fig0005" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 1415 "Ancho" => 2072 "Tamanyo" => 249511 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0005" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">(a) Several axial slices from a contrast T1-weighted MRI sequence, showing enhancement and thickening of the dura mater and leptomeninges, periventricular enhancement, and nodular enhancement of the fourth ventricle. (b) Contrast T1-weighted brain MRI scan showing enhancement of the left acoustic-facial bundle. (c) Contrast T1- and T2-weighted sagittal MRI scan of the lumbar spine, showing thickening and enhancement of the roots of the cauda equina.</p>" ] ] ] "textoCompleto" => "<span class="elsevierStyleSections"><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Introduction and epidemiology</span><p id="par0065" class="elsevierStylePara elsevierViewall">Neoplastic meningitis (NM) is a common metastatic complication in patients with cancer; it is associated with considerable neurological morbidity and generally (although with some exceptions) with short survival times, even when managed with intensive treatment. Early diagnosis and onset of treatment and/or palliative care, depending on the case, is extremely important. For these reasons, we consider it beneficial to present an updated review of the diagnosis, prognosis, and treatment of NM, which we hope may be valuable for general neurologists, particularly those practising in hospitals with oncology departments.</p><p id="par0070" class="elsevierStylePara elsevierViewall">NM is defined as the metastatic spread of cells from solid tumours or haematologic malignancies to the meninges and subarachnoid space.<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> It may occur in isolation or in association with intraparenchymal metastases in the brain and/or spinal cord. This complication, also known as leptomeningeal carcinomatosis, occurs in 4%-15% of cases of solid tumours<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1–3</span></a>; this association is the main subject of this review. Autopsy series report even greater prevalence, up to 20% in symptomatic and 8% in asymptomatic patients. NM also occurs in 5%-15% of patients with haematologic malignancies<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1,3</span></a> and 1%-2% of those with primary tumours of the nervous system, particularly ependymomas, medulloblastomas, and primary central nervous system lymphomas, but also in gliomas and other tumours.<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1,4</span></a></p><p id="par0075" class="elsevierStylePara elsevierViewall">Lung cancer (associated with NM prevalence of 9%-25%)<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> and melanoma (6%-18%)<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1,5</span></a> are the solid tumours presenting the greatest likelihood of metastasis to the meninges. However, on account of its high incidence, breast cancer is the primary solid tumour most frequently associated with NM (27%-50% of all cases), followed by lung cancer (22%-36%) and melanoma (12%).<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1,3,6</span></a> Other solid tumours, including gastric,<a class="elsevierStyleCrossRef" href="#bib0035"><span class="elsevierStyleSup">7</span></a> ovarian,<a class="elsevierStyleCrossRef" href="#bib0040"><span class="elsevierStyleSup">8</span></a> prostate,<a class="elsevierStyleCrossRef" href="#bib0045"><span class="elsevierStyleSup">9</span></a> and colon cancer,<a class="elsevierStyleCrossRef" href="#bib0050"><span class="elsevierStyleSup">10</span></a> may also be associated with NM, albeit less frequently.</p><p id="par0080" class="elsevierStylePara elsevierViewall">NM usually presents at advanced stages of disease progression (in more than 70% of cases), but may also appear after a disease-free interval (20%) or even as the first manifestation of the tumour (5%-10%)<a class="elsevierStyleCrossRefs" href="#bib0015"><span class="elsevierStyleSup">3,6</span></a>; compatible symptoms should give rise to strong suspicion, even in the absence of active or known systemic neoplastic disease.</p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0030">Symptoms</span><p id="par0085" class="elsevierStylePara elsevierViewall">Clinical signs of NM are caused by focal or global involvement of the brain hemispheres (15%), cranial nerves (35%), and/or spinal cord and nerve roots (60%)<a class="elsevierStyleCrossRefs" href="#bib0010"><span class="elsevierStyleSup">2,6</span></a>; multifocal involvement<a class="elsevierStyleCrossRefs" href="#bib0015"><span class="elsevierStyleSup">3,6,11,12</span></a> and signs of intracranial hypertension (26%) are also frequent.<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> Onset is usually subacute, with a progressive course over a period of several weeks; progression may last days or months in rarer cases (<a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a>).</p><elsevierMultimedia ident="tbl0005"></elsevierMultimedia><p id="par0090" class="elsevierStylePara elsevierViewall">The most frequent manifestations of hemispheric involvement due to meningeal irritation are headache, confusion, hemiparesis, and seizures. Common signs and symptoms secondary to cranial nerve involvement include diplopia (the sixth cranial nerve is most frequently affected, followed by the third and fourth cranial nerves), motor or sensory alterations of the fifth cranial nerve, and hypoacusia due to involvement of the eighth cranial nerve. Finally, spinal cord and nerve root involvement may cause weakness (mainly in the lower limbs), segmental sensory disturbance, loss of sphincter control, perineal anaesthesia, and back or radicular pain.<a class="elsevierStyleCrossRefs" href="#bib0015"><span class="elsevierStyleSup">3,6</span></a></p><p id="par0095" class="elsevierStylePara elsevierViewall">Intracranial hypertension typically manifests as headache, nausea, vomiting, and impaired consciousness; examination reveals papilloedema.<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> Intracranial hypertension is caused by altered cerebrospinal fluid (CSF) flow, and may present with communicating or obstructive hydrocephalus.<a class="elsevierStyleCrossRef" href="#bib0065"><span class="elsevierStyleSup">13</span></a> Some patients with NM present transient episodes of neurological dysfunction attributable to plateau waves, which are defined as episodic increases in intracranial pressure, normally induced by changes of posture, and cause decreased cerebral perfusion. They manifest as impaired consciousness, tonic limb posturing, vomiting, and incontinence; differential diagnosis should seek to rule out seizures.<a class="elsevierStyleCrossRef" href="#bib0070"><span class="elsevierStyleSup">14</span></a></p></span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Diagnosis</span><p id="par0100" class="elsevierStylePara elsevierViewall">In the event of clinical suspicion of NM, the 2 main diagnostic tools are MRI and CSF analysis (<a class="elsevierStyleCrossRef" href="#tbl0010">Table 2</a>).</p><elsevierMultimedia ident="tbl0010"></elsevierMultimedia><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0040">Magnetic resonance imaging</span><p id="par0105" class="elsevierStylePara elsevierViewall">Gadolinium-enhanced MRI of the brain and spinal cord is the neuroimaging technique of choice in patients with suspected NM; this technique presents 70%-80% specificity,<a class="elsevierStyleCrossRefs" href="#bib0010"><span class="elsevierStyleSup">2,3,15,16</span></a> compared to 30% for head CT. The most frequent neuroimaging signs compatible with diagnosis of NM are focal or distal enhancement of the meninges, subarachnoid or intraventricular nodules, and focal enhancement in such structures as the ependyma, cranial nerves, and nerve roots.<a class="elsevierStyleCrossRefs" href="#bib0075"><span class="elsevierStyleSup">15,17,18</span></a> It is advisable to perform neuroimaging studies prior to lumbar puncture, as the latter technique may cause transient meningeal enhancement, giving rise to false-positive results (<a class="elsevierStyleCrossRef" href="#fig0005">Fig. 1</a>).</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0045">Cerebrospinal fluid analysis</span><p id="par0110" class="elsevierStylePara elsevierViewall">Suggestive, though nonspecific, CSF analysis findings compatible with NM include elevated opening pressure (> 20 cm H<span class="elsevierStyleInf">2</span>O; observed in 30%-57% of cases), lymphocytic pleocytosis (> 4 leukocytes/mm<span class="elsevierStyleSup">3</span>; 33%-79% of cases),<a class="elsevierStyleCrossRef" href="#bib0035"><span class="elsevierStyleSup">7</span></a> low glucose level (< 60 mg/dL; 24%-62% of cases), and elevated protein level (> 50 mg/dL; 63%-90% of cases).<a class="elsevierStyleCrossRef" href="#bib0065"><span class="elsevierStyleSup">13</span></a> Protein level determination presents the greatest sensitivity but not the best specificity.<a class="elsevierStyleCrossRefs" href="#bib0095"><span class="elsevierStyleSup">19–21</span></a></p><p id="par0115" class="elsevierStylePara elsevierViewall">Currently, the best test for diagnosing NM in patients with solid tumours is CSF cytology, which demonstrates the presence of tumour cells with sensitivity of 60%-90% and specificity of 95%.<a class="elsevierStyleCrossRefs" href="#bib0085"><span class="elsevierStyleSup">17,22</span></a> Sensitivity increases if 2 lumbar punctures are performed. However, performing 3 or more lumbar punctures does not significantly improve diagnostic sensitivity. Other measures that increase the likelihood of detecting malignant cells include obtaining 2 samples, sample volume of at least 10.5 mL, processing samples immediately, and performing the puncture close to an area with clinical or radiological signs of disease.<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1–3,17</span></a></p><p id="par0120" class="elsevierStylePara elsevierViewall">Several studies, such as that by Subirá et al.,<a class="elsevierStyleCrossRef" href="#bib0115"><span class="elsevierStyleSup">23</span></a> have analysed the value of flow cytometry in the diagnosis of NM in patients with solid tumours, finding no clear benefit compared to cytology; therefore, this test is not routinely performed in CSF analysis. However, multiple studies evaluating flow cytometry in patients with haematologic malignancies have demonstrated clear advantages over cytology studies in terms of sensitivity for detecting tumour cells in the CSF, and recommend performing this study.<a class="elsevierStyleCrossRefs" href="#bib0085"><span class="elsevierStyleSup">17,24–26</span></a></p><p id="par0125" class="elsevierStylePara elsevierViewall">Another technique under study in CSF analysis is the detection of circulating tumour cells using the modified CellSearch system. This system has been used to count malignant cells in the peripheral blood (identified as a prognostic factor) in patients with such solid tumours as breast and colon cancer. Studies using the technique for CSF cell counts report high sensitivity and a strong correlation with cytology findings. Some studies suggest the potential value of this technique as a marker of early central nervous system involvement and treatment response.<a class="elsevierStyleCrossRefs" href="#bib0135"><span class="elsevierStyleSup">27,28</span></a> However, its use currently remains experimental. Finally, another experimental method for detecting central nervous system metastasis is the analysis of circulating DNA in the CSF. Several studies have found this technique to be more sensitive than cytology; furthermore, it may assist in the molecular characterisation of metastatic tumour cells.<a class="elsevierStyleCrossRefs" href="#bib0145"><span class="elsevierStyleSup">29,30</span></a></p><p id="par0130" class="elsevierStylePara elsevierViewall">In the absence of compatible neuroimaging or CSF findings, diagnosis of NM may be based on clinical manifestations and history of cancer, after other causes are ruled out,<a class="elsevierStyleCrossRef" href="#bib0155"><span class="elsevierStyleSup">31</span></a> although diagnosis should ideally be confirmed with positive cytology results and/or compatible MRI findings in order to start specific treatment.<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> Although patients with negative results in the initial evaluation are unlikely to develop NM, all patients must undergo clinical follow-up, and MRI studies and CSF analysis should be repeated in the event of new or progressive symptoms.<a class="elsevierStyleCrossRef" href="#bib0160"><span class="elsevierStyleSup">32</span></a></p></span></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0050">Prognosis and treatment indications</span><p id="par0135" class="elsevierStylePara elsevierViewall">Without treatment, prognosis is generally poor, with a mean survival time of 4-6 weeks; this increases to 3-6 months with treatment.<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1,3,19,33</span></a> However, survival depends on the type of primary tumour,<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> with some studies reporting survival times of 7-12 months in patients with breast cancer<a class="elsevierStyleCrossRefs" href="#bib0095"><span class="elsevierStyleSup">19,34</span></a> (11%-25% survival one year after diagnosis) and 4 months in patients with melanoma<a class="elsevierStyleCrossRef" href="#bib0175"><span class="elsevierStyleSup">35</span></a> and lung cancer.<a class="elsevierStyleCrossRef" href="#bib0180"><span class="elsevierStyleSup">36</span></a></p><p id="par0140" class="elsevierStylePara elsevierViewall">Studies have addressed the influence of multiple factors on the prognosis of NM; the clearest factor is the patient’s functional status, with patients scoring below 70 on the Karnofsky Performance Status (KPS) scale presenting shorter survival times (<a class="elsevierStyleCrossRef" href="#tbl0015">Table 3</a>).<a class="elsevierStyleCrossRefs" href="#bib0185"><span class="elsevierStyleSup">37,38</span></a></p><elsevierMultimedia ident="tbl0015"></elsevierMultimedia><p id="par0145" class="elsevierStylePara elsevierViewall">Additional prognostic factors have been studied in the specific context of NM in patients with breast cancer, melanoma, and lung cancer. A retrospective study of 103 patients with NM associated with breast cancer found that hormone receptor status (oestrogen and progesterone receptors) and stage at diagnosis were the most significant factors influencing the time between initial diagnosis of the tumour and onset of NM. Advanced tumour stage and negativity for hormonal receptors and HER2 (triple-negative breast cancer) were associated with earlier development of NM. After diagnosis of NM, these factors are also related to survival time: prognosis is better in patients positive for hormonal receptors and poorer in patients with triple-negative breast cancer.<a class="elsevierStyleCrossRefs" href="#bib0160"><span class="elsevierStyleSup">32,39</span></a> Regarding the prognostic factors reported in patients with melanoma and NM, a retrospective study including 110 patients reports that intrathecal chemotherapy improved prognosis, but did not find poorer prognosis in patients with greater CNS tumour burden, contradicting the study’s primary hypothesis.<a class="elsevierStyleCrossRef" href="#bib0200"><span class="elsevierStyleSup">40</span></a> In NM associated with lung cancer, a multivariate analysis in a retrospective study of 149 patients found that factors including low scores on the Eastern Cooperative Oncology Group performance status scale, low CSF protein level and cell count, and intrathecal chemotherapy were associated with poor prognosis, whereas radiotherapy (RT) and tyrosine kinase inhibitors targeting the epidermic growth factor receptor (EGFR) improved prognosis.<a class="elsevierStyleCrossRef" href="#bib0205"><span class="elsevierStyleSup">41</span></a> Given the retrospective design of these studies, we cannot rule out the possibility that this improved prognosis was influenced by a selection bias (ie, the patients with the best prognosis may have been selected to receive treatment).</p><p id="par0150" class="elsevierStylePara elsevierViewall">Besides the patient’s functional status, other factors associated with poor prognosis include age older than 50 years, diagnosis of NM less than 12 months after diagnosis of the primary tumour, multiple established neurological deficits, presence of encephalopathy, high burden of leptomeningeal disease, CSF flow obstruction, and advanced systemic disease with limited treatment options.<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1,3,15,42</span></a><span class="elsevierStyleSup">,</span><a class="elsevierStyleCrossRef" href="#bib0215"><span class="elsevierStyleSup">43</span></a></p><p id="par0155" class="elsevierStylePara elsevierViewall">Based on these factors, patients with NM may be classified into 2 groups with different treatment indications (<a class="elsevierStyleCrossRef" href="#tbl0020">Table 4</a>). The group of patients eligible for intensive treatment would include those with better expected outcomes and treatment response (KPS > 60; systemic disease under control or with appropriate treatment options, absence of major neurological deficits). In patients with poorer prognosis (KPS ≤ 60), uncontrolled systemic disease or lack of treatment options, and/or presence of significant neurological deficits, intensive treatment for NM is highly unlikely to be beneficial, with supportive or palliative care being more appropriate (<a class="elsevierStyleCrossRef" href="#fig0010">Fig. 2</a>).</p><elsevierMultimedia ident="tbl0020"></elsevierMultimedia><elsevierMultimedia ident="fig0010"></elsevierMultimedia><p id="par0160" class="elsevierStylePara elsevierViewall">Current management approaches aim not to treat, but rather to delay and to diminish as much as possible the neurological symptoms of the disease and to preserve patients’ quality of life. The best strategy is individualised treatment; in the majority of cases, this involves a combination of the different types of treatment available (RT; intrathecal or systemic chemotherapy) over the course of the disease, as well as supportive treatment appropriate to the patient’s situation. Treatment decisions are typically based on variables including lesion load, type of tumour, the availability of systemic treatments active against NM, and the speed of symptom progression. In intrathecal chemotherapy, the most appropriate drug will depend on such factors as adverse reactions, patient comfort, and the healthcare centre’s experience with the specific drug; randomised clinical trials have not shown any drug to be superior.</p></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0055">Treatment</span><p id="par0165" class="elsevierStylePara elsevierViewall">Several forms of treatment may be used for NM, including intrathecal chemotherapy, RT, and systemic chemotherapy, as well as supportive or palliative care for the associated symptoms. Treatment decisions must be made on a case-by-case basis; ideally, the treatment plan should be designed by a multidisciplinary team (<a class="elsevierStyleCrossRef" href="#fig0010">Fig. 2</a>).</p><span id="sec0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0060">Intrathecal chemotherapy</span><span id="sec0045" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0065">Means of administration</span><p id="par0170" class="elsevierStylePara elsevierViewall">Intrathecal chemotherapy consists in the administration of drugs directly to the subarachnoid space, and may use 2 different routes: repeated lumbar punctures or an intraventricular catheter connected to an Ommaya® reservoir implanted under the scalp (<a class="elsevierStyleCrossRef" href="#fig0015">Fig. 3</a>). This device must be implanted by a neurosurgeon, and a CT study should be performed after the procedure to verify correct placement before treatment is started, as the device may not be correctly positioned in 3%-12% of cases.<a class="elsevierStyleCrossRef" href="#bib0015"><span class="elsevierStyleSup">3</span></a> The main advantages of Ommaya® reservoirs over administration via lumbar puncture are the better distribution of the drug in the intrathecal space, which is particularly important for drugs with very short half-lives,<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1,44</span></a> such as methotrexate (MTX) or cytarabine (Ara-C), as well as the greater ease of administering treatment and better patient comfort. The main disadvantage is the need for surgical intervention and the greater frequency of infections, compared to lumbar puncture.<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a></p><elsevierMultimedia ident="fig0015"></elsevierMultimedia><p id="par0175" class="elsevierStylePara elsevierViewall">A CSF flow study is recommended prior to onset of intrathecal chemotherapy, as flow may be obstructed in 30% of patients with NM; the cerebral convexity, skull base, and spinal cord are the main regions affected.<a class="elsevierStyleCrossRefs" href="#bib0225"><span class="elsevierStyleSup">45,46</span></a> Obstructed CSF flow is associated with poor prognosis in these patients, possibly due to suboptimal distribution of the drug and the potential for accumulation in the area of obstruction, causing toxicity.<a class="elsevierStyleCrossRefs" href="#bib0225"><span class="elsevierStyleSup">45,47</span></a> The technique of choice for studying CSF flow is ventriculography with indium-111 or technetium-99.<a class="elsevierStyleCrossRef" href="#bib0240"><span class="elsevierStyleSup">48</span></a> If an obstruction is detected, the patient may be treated with focal RT, which is able to restore flow in 30%-50% of cases, improving prognosis.<a class="elsevierStyleCrossRefs" href="#bib0225"><span class="elsevierStyleSup">45,47</span></a> Intrathecal chemotherapy is contraindicated if obstruction persists despite RT.</p></span></span><span id="sec0050" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0070">Drugs available for intrathecal administration</span><p id="par0180" class="elsevierStylePara elsevierViewall">The drugs most frequently used for NM are MTX, Ara-C and the slow-release form cytarabine liposome, thiotepa, and topotecan. Numerous studies have compared the effectiveness of these drugs or combinations of these drugs, finding no significant differences in terms of treatment response or global survival times.<a class="elsevierStyleCrossRefs" href="#bib0245"><span class="elsevierStyleSup">49–52</span></a> Combination therapy is rarely used in patients with haematologic malignancies, unlike in the case of patients with NM and solid tumours.<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a><ul class="elsevierStyleList" id="lis0065"><li class="elsevierStyleListItem" id="lsti0065"><span class="elsevierStyleLabel">•</span><p id="par0185" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleItalic">Methotrexate</span>. MTX is a folic acid antagonist that inhibits DNA synthesis through the inhibition of dihydrofolate reductase. The drug has a half-life of 4-8 hours. The typical administration protocol consists of 10-15 mg administered twice weekly for 4 weeks for induction, once per week for 4 weeks for consolidation, and once per month for maintenance treatment (<a class="elsevierStyleCrossRef" href="#tbl0025">Table 5</a>).<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1,2,53</span></a></p><elsevierMultimedia ident="tbl0025"></elsevierMultimedia></li><li class="elsevierStyleListItem" id="lsti0070"><span class="elsevierStyleLabel">•</span><p id="par0190" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleItalic">Cytarabine</span>. Ara-C (cytosine arabinoside, cytarabine) is a pyrimidine analogue that is metabolised to the active metabolite ara-cytidine-5′-triphosphate (ara-CTP), which inhibits DNA polymerase. The drug has a half-life of 1-3 hours. The typical administration protocol consists of 25-100 mg administered twice weekly for 4 weeks for induction, once per week for 4 weeks for consolidation, and once per month for maintenance treatment (<a class="elsevierStyleCrossRef" href="#tbl0025">Table 5</a>).<a class="elsevierStyleCrossRefs" href="#bib0010"><span class="elsevierStyleSup">2,52</span></a></p></li><li class="elsevierStyleListItem" id="lsti0075"><span class="elsevierStyleLabel">•</span><p id="par0195" class="elsevierStylePara elsevierViewall">Cytarabine liposome is a slow-release compound that remains at cytotoxic levels in the CSF for 10-14 days (half-life of 100-263 hours); therefore, it may be administered at longer intervals. Glantz et al.<a class="elsevierStyleCrossRef" href="#bib0270"><span class="elsevierStyleSup">54</span></a> conducted a clinical trial of patients with meningeal lymphomatosis, comparing the standard formulation of Ara-C against the slow-release compound, finding the latter to present a higher response rate (CSF cytology converting to negative and lack of neurological progression) but not longer survival times. Another clinical trial by the same research group compared the drug against MTX. Response rates were similar, but the group treated with cytarabine liposome presented longer delays to neurological worsening; however, the difference in survival time was not statistically significant.<a class="elsevierStyleCrossRef" href="#bib0275"><span class="elsevierStyleSup">55</span></a> The typical administration protocol consists of 50 mg administered every 2 weeks for 8 weeks for induction and every 4 weeks for consolidation and maintenance treatment (<a class="elsevierStyleCrossRef" href="#tbl0025">Table 5</a>).<a class="elsevierStyleCrossRefs" href="#bib0010"><span class="elsevierStyleSup">2,54</span></a></p></li><li class="elsevierStyleListItem" id="lsti0080"><span class="elsevierStyleLabel">•</span><p id="par0200" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleItalic">Thiotepa</span>. Thiotepa, an alkylating agent that does not depend on the cell cycle, is another drug available for intrathecal administration, although it is not widely used.<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1,2</span></a> Several clinical trials support its usefulness; it has a similar efficacy rate to the remaining treatments and a low level of toxicity.<a class="elsevierStyleCrossRefs" href="#bib0095"><span class="elsevierStyleSup">19,56,57</span></a> The drug has a half-life of 6 hours. The typical administration protocol consists of 10 mg administered twice weekly for 4 weeks for induction, once per week for 4 weeks for consolidation, and once per month for maintenance treatment (<a class="elsevierStyleCrossRef" href="#tbl0025">Table 5</a>).<a class="elsevierStyleCrossRefs" href="#bib0010"><span class="elsevierStyleSup">2,56,57</span></a></p></li></ul></p></span><span id="sec0055" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0075">Other drugs for intrathecal administration</span><p id="par0205" class="elsevierStylePara elsevierViewall">In addition to the more common treatments, clinical trials have evaluated intrathecal administration of other drugs. These include:<ul class="elsevierStyleList" id="lis0070"><li class="elsevierStyleListItem" id="lsti0085"><span class="elsevierStyleLabel">•</span><p id="par0210" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleItalic">Topotecan</span>, a topoisomerase type I inhibitor approved for systemic use in patients with ovarian and lung cancer. Clinical trials assessing its safety and effectiveness in patients with NM, as well as several retrospective studies, report response rates and survival times similar to those of other intrathecal drugs, and good tolerability.<a class="elsevierStyleCrossRefs" href="#bib0010"><span class="elsevierStyleSup">2,58,59</span></a> The drug has a half-life of 2-3 hours. The typical administration protocol consists of 0.4 mg administered twice weekly for 6 weeks for induction, once per week for 6 weeks for consolidation, and twice per month for maintenance treatment, followed by administration once per month if the disease does not progress (<a class="elsevierStyleCrossRef" href="#tbl0025">Table 5</a>).<a class="elsevierStyleCrossRefs" href="#bib0290"><span class="elsevierStyleSup">58,59</span></a></p></li><li class="elsevierStyleListItem" id="lsti0090"><span class="elsevierStyleLabel">•</span><p id="par0215" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleItalic">Trastuzumab</span>, a monoclonal antibody targeting HER2, is used for systemic therapy in patients with metastatic breast cancer and HER2 overexpression; response is very good, except in cases of brain and leptomeningeal metastasis. Several case series report good response and tolerance to intrathecal administration in the treatment of patients with NM and HER2-positive breast cancer. Two clinical trials currently underway aim to establish the drug’s efficacy and safety and the most suitable dose.<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1,60–62</span></a> The intravenous form of trastuzumab is unsuitable for intrathecal administration as the reconstituted vials contain benzyl alcohol, which is neurotoxic.</p></li><li class="elsevierStyleListItem" id="lsti0095"><span class="elsevierStyleLabel">•</span><p id="par0220" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleItalic">Interleukin 2</span> (IL-2) is an immune system cytokine that plays an important role in regulating T lymphocyte responses. A retrospective study of 43 patients with melanoma and NM found that intrathecal administration of IL-2 increased survival. The most frequent secondary effects are headache, chills, nausea, and fever. It is administered 4 times per week for 4 weeks for induction, followed by a maintenance dose every 1-3 months if an improvement is observed<a class="elsevierStyleCrossRef" href="#bib0315"><span class="elsevierStyleSup">63</span></a>.</p></li></ul></p></span><span id="sec0060" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0080">Adverse reactions and complications</span><p id="par0225" class="elsevierStylePara elsevierViewall"><ul class="elsevierStyleList" id="lis0075"><li class="elsevierStyleListItem" id="lsti0100"><span class="elsevierStyleLabel">•</span><p id="par0230" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleItalic">Infectious meningitis.</span><a class="elsevierStyleCrossRefs" href="#bib0015"><span class="elsevierStyleSup">3,64,65</span></a> This complication occurs in 2%-15% of patients, most frequently in those with Ommaya® reservoirs. Clinical manifestations include headache, fever, nausea and vomiting, impaired consciousness, and malfunctioning of the reservoir. Typical CSF findings include pleocytosis with predominance of polymorphonuclear leukocytes, increased protein level, and low glucose level. Gram-positive micro-organisms are most frequently isolated, particularly coagulase-negative <span class="elsevierStyleItalic">Staphylococcus</span>. Treatment requires intravenous antibiotics; intrathecal administration of antibiotics and early removal of the catheter should also be considered. In the event of asymptomatic colonisation, removal of the catheter is not always necessary, and antibiotic treatment should be considered.</p></li><li class="elsevierStyleListItem" id="lsti0105"><span class="elsevierStyleLabel">•</span><p id="par0235" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleItalic">Aseptic meningitis.</span><a class="elsevierStyleCrossRefs" href="#bib0330"><span class="elsevierStyleSup">66,67</span></a> Aseptic meningitis presents as transient headache, meningism, and mild fever, presenting several hours after infusion and disappearing within 3 days. This is an idiosyncratic reaction and does not usually recur with subsequent doses of treatment. It presents in up to 10% of patients receiving MTX, and also in those receiving thiotepa and Ara-C; it is more frequent and more prone to recurrence in the case of cytarabine liposome. It responds to treatment with corticosteroids and non-steroidal anti-inflammatory drugs.</p></li><li class="elsevierStyleListItem" id="lsti0110"><span class="elsevierStyleLabel">•</span><p id="par0240" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleItalic">Acute myelopathy.</span><a class="elsevierStyleCrossRefs" href="#bib0330"><span class="elsevierStyleSup">66,68,69</span></a> Acute myelopathy is a rare but devastating complication of intrathecal chemotherapy. It is usually associated with MTX treatment, but has also been reported in patients receiving cytarabine and thiotepa. It can appear days or months after administration of the drug, and presents as paraparesis, tetraparesis, or even locked-in syndrome. Spinal MRI studies display T2-hyperintense lesions to the posterior columns, although findings are normal in some cases. There is no established treatment, although a case has been published of a patient who presented a partial improvement with supplementation with high doses of folic acid, cyanocobalamin, methionine, and S-adenosyl methionine starting 3 days after symptom onset.<a class="elsevierStyleCrossRef" href="#bib0215"><span class="elsevierStyleSup">43</span></a></p></li></ul></p><p id="par0245" class="elsevierStylePara elsevierViewall">Differential diagnosis between this entity and myelopathy secondary to tumour progression is complex. Determination of myelin basic protein in the CSF may be valuable, as levels of this protein increase if spinal cord damage is caused by demyelination but not in the event of tumour progression.<a class="elsevierStyleCrossRef" href="#bib0345"><span class="elsevierStyleSup">69</span></a><ul class="elsevierStyleList" id="lis0080"><li class="elsevierStyleListItem" id="lsti0115"><span class="elsevierStyleLabel">•</span><p id="par0250" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleItalic">Progressive leukoencephalopathy.</span><a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1,66,67</span></a> This chronic complication may present from 6 months after administration of MTX. Typical symptoms are cognitive and behavioural alterations, incontinence, seizures, and gait alterations. Incidence is 2% in patients receiving intrathecal MTX, but rises to 48% if the drug is administered after RT to the brain. Therefore, it is recommended that intrathecal MTX be administered 2-3 weeks after radiation, if this combination of treatments is needed.</p></li><li class="elsevierStyleListItem" id="lsti0120"><span class="elsevierStyleLabel">•</span><p id="par0255" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleItalic">Myelosuppression.</span><a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1,3</span></a> This complication is rare in patients receiving intrathecal chemotherapy; before treatment onset, blood testing should confirm the following values: haemoglobin level > 10 g/dL, platelet count > 100 000 platelets/μL, and granulocyte count > 1500 cells/μL. If MTX is to be administered, prophylactic folic acid is recommended at a dose of 10-15 mg/6 hours for 2 days.</p></li><li class="elsevierStyleListItem" id="lsti0125"><span class="elsevierStyleLabel">•</span><p id="par0260" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleItalic">Arachnoiditis and conus medullaris syndrome</span>. This is a common complication (affecting 17% of patients) of treatment with cytarabine liposome.<a class="elsevierStyleCrossRef" href="#bib0195"><span class="elsevierStyleSup">39</span></a> Neurological complications decrease with preventive measures such as spacing intrathecal cytarabine liposome and systemic chemotherapy treatment, or the use of oral or intrathecal corticosteroids; however, the risk does not completely disappear.<a class="elsevierStyleCrossRef" href="#bib0350"><span class="elsevierStyleSup">70</span></a></p></li></ul></p></span><span id="sec0065" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0085">Radiotherapy</span><p id="par0265" class="elsevierStylePara elsevierViewall">RT is one of the main treatments for NM. The different available forms of RT are holocranial, focal, and craniospinal irradiation.</p><p id="par0270" class="elsevierStylePara elsevierViewall">Holocranial RT is administered to patients with concomitant cerebral metastases, high lesion load, large leptomeningeal deposits (which drugs are unable to fully penetrate), or severe or rapidly progressive symptoms.<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1,13</span></a> The typical dose is 30-36 Gy<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> in fractions of 3 Gy per day, although doses may range from 20 to 40 Gy.<a class="elsevierStyleCrossRef" href="#bib0065"><span class="elsevierStyleSup">13</span></a> While the treatment has not been shown to improve survival times in patients with NM associated with breast or lung cancer,<a class="elsevierStyleCrossRefs" href="#bib0355"><span class="elsevierStyleSup">71,72</span></a> it is useful in palliative care.</p><p id="par0275" class="elsevierStylePara elsevierViewall">Focal RT is particularly useful in large or symptomatic spinal lesions due to its ability to quickly control symptoms,<a class="elsevierStyleCrossRef" href="#bib0365"><span class="elsevierStyleSup">73</span></a> and in lesions causing alterations to CSF flow: focal RT restores CSF flow in 30%-50% of cases.<a class="elsevierStyleCrossRef" href="#bib0235"><span class="elsevierStyleSup">47</span></a></p><p id="par0280" class="elsevierStylePara elsevierViewall">Craniospinal irradiation is not generally used to treat NM associated with solid tumours as it is not a curative treatment and may cause bone marrow toxicity that can interfere with subsequent administration of systemic chemotherapy.<a class="elsevierStyleCrossRef" href="#bib0065"><span class="elsevierStyleSup">13</span></a></p></span><span id="sec0070" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0090">Systemic chemotherapy</span><span id="sec0075" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0095">Systemic cytotoxic drugs</span><p id="par0285" class="elsevierStylePara elsevierViewall">Systemic chemotherapy generally presents limited efficacy in patients with NM associated with solid tumours due to the low concentrations that the drugs reach in the CSF and brain parenchyma and the lack of antitumour efficacy for some cancers. Despite these limitations, a retrospective study evaluating prognostic factors, which included 155 patients with NM and different types of tumour (73 solid tumours), found that systemic chemotherapy in isolation or in combination with other treatments was associated with better survival times than other treatment options that did not include systemic chemotherapy.<a class="elsevierStyleCrossRef" href="#bib0215"><span class="elsevierStyleSup">43</span></a> Another retrospective study including 155 patients with NM reported similar results.<a class="elsevierStyleCrossRef" href="#bib0375"><span class="elsevierStyleSup">74</span></a></p><p id="par0290" class="elsevierStylePara elsevierViewall">Numerous drugs are able to cross the blood-brain barrier (e.g., temozolomide, capecitabine, nitrosoureas, methotrexate, and topotecan), but their efficacy in treating NM associated with solid tumours is very limited. A case series by Glantz et al.<a class="elsevierStyleCrossRef" href="#bib0380"><span class="elsevierStyleSup">75</span></a> reports good results with longer survival times in 13 of the 16 patients treated with high-dose intravenous MTX, with a mean survival time of 14 months, although most of the primary tumours were gliomas and lymphomas. Several cases have been published of effective treatment of NM with temozolomide.<a class="elsevierStyleCrossRef" href="#bib0065"><span class="elsevierStyleSup">13</span></a> However, a phase 2 clinical trial studying NM associated with solid tumours had to be terminated prematurely due to inefficacy of the treatment.<a class="elsevierStyleCrossRef" href="#bib0385"><span class="elsevierStyleSup">76</span></a> Cases have been reported in which patients with NM secondary to breast cancer responded to capecitabine.<a class="elsevierStyleCrossRef" href="#bib0390"><span class="elsevierStyleSup">77</span></a></p></span><span id="sec0080" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0100">Systemic drugs with molecular targets</span><p id="par0295" class="elsevierStylePara elsevierViewall">In breast cancer treatment, lapatinib, a dual HER1/HER2 tyrosine kinase inhibitor that is administered orally and is able to cross the blood-brain barrier, has shown good results in the treatment of brain metastasis, although no prospective studies have evaluated its usefulness in treating NM. Isolated cases have been reported of response to hormone therapy, although the current evidence is insufficient to support the use of these treatments for NM secondary to breast cancer.<a class="elsevierStyleCrossRefs" href="#bib0095"><span class="elsevierStyleSup">19,78</span></a></p><p id="par0300" class="elsevierStylePara elsevierViewall">A retrospective study by Liao et al.<a class="elsevierStyleCrossRef" href="#bib0400"><span class="elsevierStyleSup">79</span></a> demonstrated the safety of EGFR tyrosine kinase inhibitors (erlotinib, gefitinib, and afatinib) in treating NM in patients with non-small-cell lung cancer with EGFR mutations. The main issue with these drugs is that, while they cross the blood-brain barrier, they only reach very low levels in the CSF. One possible solution is to administer drugs at high doses via alternative routes. A phase 1 clinical trial of high-dose gefitinib reported an improvement in neurological symptoms in 57% of patients.<a class="elsevierStyleCrossRef" href="#bib0405"><span class="elsevierStyleSup">80</span></a> Another retrospective study showed that erlotinib at high doses is safe and effective in the event of treatment failure with standard doses. In the case of <span class="elsevierStyleItalic">ALK</span> mutations, present in 5% of patients with lung cancer, several cases have been published of patients who responded to such second-generation ALK inhibitors as alectinib and ceritinib.<a class="elsevierStyleCrossRef" href="#bib0395"><span class="elsevierStyleSup">78</span></a></p><p id="par0305" class="elsevierStylePara elsevierViewall">Finally, several published cases of patients with NM associated with melanoma<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1,81</span></a> and the <span class="elsevierStyleItalic">BRAF</span> (V600E) mutation report response to vemurafenib and dabrafenib and such MEK inhibitors as trametinib, either alone or in combination,<a class="elsevierStyleCrossRef" href="#bib0415"><span class="elsevierStyleSup">82</span></a> although no prospective clinical trials have addressed this issue. Some authors also report response to treatment with such immune checkpoint inhibitors as ipilimumab<a class="elsevierStyleCrossRef" href="#bib0420"><span class="elsevierStyleSup">83</span></a>; several clinical trials currently underway address the use of nivolumab and pembrolizumab to treat NM secondary to melanoma.</p></span></span><span id="sec0085" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0105">The role of surgery</span><p id="par0310" class="elsevierStylePara elsevierViewall">Surgery has a limited role in treating NM, with indications restricted to the placement of Ommaya® reservoirs, biopsy in the event of unknown primary tumours and inconclusive cytology findings, and ventriculoperitoneal shunt in patients with hydrocephalus. Patients with hydrocephalus may undergo implantation of a shunt with an on-off valve together with a reservoir, which enables intrathecal administration of chemotherapy drugs with the valve in the “off” position and acts as a shunt in the interval between treatments, with the valve in the “on” position. Another surgical option in these patients is endoscopic ventriculostomy.</p></span><span id="sec0090" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0110">Evaluation of treatment response</span><p id="par0315" class="elsevierStylePara elsevierViewall">Evaluating treatment response in patients with NM is complex, and should include clinical and radiological assessment and CSF analysis (<a class="elsevierStyleCrossRef" href="#fig0010">Fig. 2</a>). According to the results for each parameter, the disease may be classified as responsive to treatment, stable, or progressive. Decisions about whether to continue treatment are based on these criteria. The Response Assessment in Neuro-Oncology (RANO) working group<a class="elsevierStyleCrossRef" href="#bib0425"><span class="elsevierStyleSup">84</span></a> recently published an article summarising the current consensus on the assessment of treatment response in NM.</p><p id="par0320" class="elsevierStylePara elsevierViewall">Neurological evaluation should include an assessment of symptoms and physical examination. Treatment response is defined as improvement or absence of clinically significant changes. The RANO group proposes an examination including 10 items, each of which should be assigned a level from 0 to 3; NM is defined as progressive if an item increases by 2 levels or reaches level 3.</p><p id="par0325" class="elsevierStylePara elsevierViewall">Regarding CSF analysis, RANO proposes that cytology results should only be characterised as positive or negative. This analysis should be performed prior to treatment onset (baseline) and during treatment, once per week or twice per month during induction, then every one or 2 months during the maintenance period. Cytology results changing from positive to negative are considered to indicate treatment response. NM is considered progressive if cytology results change from negative to positive or if positive results persist after the treatment induction phase.</p><p id="par0330" class="elsevierStylePara elsevierViewall">Brain and spinal cord MRI are useful in assessing treatment response, and should be performed before treatment onset and after induction. Progression is defined as increased size or extension of existing lesions in contrast-enhanced sequences. The RANO working group proposes a scale for scoring MRI results; this is yet to be validated.</p><p id="par0335" class="elsevierStylePara elsevierViewall">Overall, disease progression is defined as worsening of neurological symptoms, increased size of MRI lesions, or cytology findings of persistent positivity or a change from negative to positive results (however, disease progression cannot be established based on cytology results alone).</p></span></span><span id="sec0095" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0115">Conclusion</span><p id="par0340" class="elsevierStylePara elsevierViewall">Multifocal, subacute, progressive neurological symptoms should give rise to strong suspicion of NM in patients with known solid tumours. In addition to the routine MRI and CSF cytology tests, we should also consider flow cytometry and screening for circulating tumour cells or DNA; the latter 2 tests are currently under research, although studies support their high sensitivity. Each patient should be treated on an individualised basis, depending on their characteristics (age, functional status, neurological symptoms) and the characteristics of the tumour (type of primary tumour, presence of systemic disease and treatment options, leptomeningeal lesion load, presence of CSF flow obstruction). Treatment is based on 3 fundamental pillars: RT, intrathecal chemotherapy, and systemic chemotherapy, as well as supportive care to control symptoms. Most current research is focused on drugs with molecular targets; immunotherapy is also beginning to gain prominence in clinical trials, especially in the context of melanoma.</p><p id="par0345" class="elsevierStylePara elsevierViewall">This article presents an updated review of today’s clinical practice and possible future directions; furthermore, we propose a treatment algorithm that may serve as a guideline for the management of NM.</p><p id="par0350" class="elsevierStylePara elsevierViewall">The treatment (and therefore also the prognosis) of these patients may improve in the future with the validation of techniques for the early diagnosis of NM and for monitoring treatment response; further multicentre clinical trials specifically designed to study NM associated with specific tumour types or tumours with different origins, but sharing the same genetic/molecular characteristics; multidisciplinary management; and national and international consensus guidelines.</p></span><span id="sec0100" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0120">Funding</span><p id="par0355" class="elsevierStylePara elsevierViewall">This study has received no funding of any kind.</p></span><span id="sec0105" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0125">Conflicts of interest</span><p id="par0360" class="elsevierStylePara elsevierViewall">The authors have no conflicts of interest to declare.</p><p id="par0365" class="elsevierStylePara elsevierViewall">This article was drafted while Marta Penas-Prado was working at the MD Anderson Cancer Center at the University of Texas. The opinions expressed in this article are the author’s, and do not reflect the views of the National Institutes of Health, the United States Department of Health and Human Services, or the United States government.</p></span></span>" "textoCompletoSecciones" => array:1 [ "secciones" => array:13 [ 0 => array:3 [ "identificador" => "xres1792624" "titulo" => "Abstract" "secciones" => array:1 [ 0 => array:1 [ "identificador" => "abst0005" ] ] ] 1 => array:2 [ "identificador" => "xpalclavsec1569429" "titulo" => "Keywords" ] 2 => array:3 [ "identificador" => "xres1792623" "titulo" => "Resumen" "secciones" => array:1 [ 0 => array:1 [ "identificador" => "abst0010" ] ] ] 3 => array:2 [ "identificador" => "xpalclavsec1569428" "titulo" => "Palabras clave" ] 4 => array:2 [ "identificador" => "sec0005" "titulo" => "Introduction and epidemiology" ] 5 => array:2 [ "identificador" => "sec0010" "titulo" => "Symptoms" ] 6 => array:3 [ "identificador" => "sec0015" "titulo" => "Diagnosis" "secciones" => array:2 [ 0 => array:2 [ "identificador" => "sec0020" "titulo" => "Magnetic resonance imaging" ] 1 => array:2 [ "identificador" => "sec0025" "titulo" => "Cerebrospinal fluid analysis" ] ] ] 7 => array:2 [ "identificador" => "sec0030" "titulo" => "Prognosis and treatment indications" ] 8 => array:3 [ "identificador" => "sec0035" "titulo" => "Treatment" "secciones" => array:8 [ 0 => array:3 [ "identificador" => "sec0040" "titulo" => "Intrathecal chemotherapy" "secciones" => array:1 [ 0 => array:2 [ "identificador" => "sec0045" "titulo" => "Means of administration" ] ] ] 1 => array:2 [ "identificador" => "sec0050" "titulo" => "Drugs available for intrathecal administration" ] 2 => array:2 [ "identificador" => "sec0055" "titulo" => "Other drugs for intrathecal administration" ] 3 => array:2 [ "identificador" => "sec0060" "titulo" => "Adverse reactions and complications" ] 4 => array:2 [ "identificador" => "sec0065" "titulo" => "Radiotherapy" ] 5 => array:3 [ "identificador" => "sec0070" "titulo" => "Systemic chemotherapy" "secciones" => array:2 [ 0 => array:2 [ "identificador" => "sec0075" "titulo" => "Systemic cytotoxic drugs" ] 1 => array:2 [ "identificador" => "sec0080" "titulo" => "Systemic drugs with molecular targets" ] ] ] 6 => array:2 [ "identificador" => "sec0085" "titulo" => "The role of surgery" ] 7 => array:2 [ "identificador" => "sec0090" "titulo" => "Evaluation of treatment response" ] ] ] 9 => array:2 [ "identificador" => "sec0095" "titulo" => "Conclusion" ] 10 => array:2 [ "identificador" => "sec0100" "titulo" => "Funding" ] 11 => array:2 [ "identificador" => "sec0105" "titulo" => "Conflicts of interest" ] 12 => array:1 [ "titulo" => "References" ] ] ] "pdfFichero" => "main.pdf" "tienePdf" => true "fechaRecibido" => "2019-07-22" "fechaAceptado" => "2019-10-14" "PalabrasClave" => array:2 [ "en" => array:1 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Keywords" "identificador" => "xpalclavsec1569429" "palabras" => array:6 [ 0 => "Neoplastic meningitis" 1 => "Leptomeningeal disease" 2 => "Intrathecal therapy" 3 => "Intrathecal chemotherapy" 4 => "Methotrexate" 5 => "Cytarabine" ] ] ] "es" => array:1 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Palabras clave" "identificador" => "xpalclavsec1569428" "palabras" => array:6 [ 0 => "Meningitis neoplásica" 1 => "Diseminación leptomeníngea" 2 => "Terapia intratecal" 3 => "Quimioterapia intratecal" 4 => "Metotrexato" 5 => "Citarabina" ] ] ] ] "tieneResumen" => true "resumen" => array:2 [ "en" => array:2 [ "titulo" => "Abstract" "resumen" => "<span id="abst0005" class="elsevierStyleSection elsevierViewall"><p id="spar0045" class="elsevierStyleSimplePara elsevierViewall">Neoplastic meningitis (NM) is a relatively frequent metastatic complication of cancer associated with high levels of neurological morbidity and generally poor prognosis. It appears in 5%-15% of patients with solid tumours, the most frequent being breast and lung cancer and melanoma. Symptoms are caused by involvement of the cerebral hemispheres, cranial nerves, spinal cord, and nerve roots, and are often multifocal or present with signs and symptoms of intracranial hypertension. The main diagnostic tools are the neurological examination, brain and spinal cord contrast-enhanced magnetic resonance imaging, and cerebrospinal fluid analysis including cytology, although studies have recently been conducted into the detection of tumour cells and DNA in the cerebrospinal fluid, which increases diagnostic sensitivity. With the currently available therapies, treatment aims not to cure the disease, but to delay and ameliorate the symptoms and to preserve quality of life. Treatment of NM involves a multimodal approach that may include radiotherapy, intrathecal and/or systemic chemotherapy, and surgery. Treatment should be individualised, and is based mainly on clinical practice guidelines and expert opinion. Promising clinical trials are currently being conducted to evaluate drugs with molecular and immunotherapeutic targets. This article is an updated review of NM epidemiology, clinical presentation, diagnosis, prognosis, management, and treatment; it is aimed at general neurologists and particularly at neurologists practicing in hospital settings with oncological patients.</p></span>" ] "es" => array:2 [ "titulo" => "Resumen" "resumen" => "<span id="abst0010" class="elsevierStyleSection elsevierViewall"><p id="spar0050" class="elsevierStyleSimplePara elsevierViewall">La meningitis neoplásica (MN) es una complicación metastásica relativamente frecuente en pacientes con cáncer, con alta morbilidad neurológica y en general pobre pronóstico. La prevalencia está en torno al 5-15% de los tumores sólidos, y los más frecuentes son el cáncer de mama, el de pulmón y el melanoma. La clínica se produce por afectación de hemisferios cerebrales, nervios craneales, médula y raíces nerviosas, siendo en muchos casos multifocal, y presenta a menudo síntomas y signos de hipertensión intracraneal. Las principales herramientas diagnósticas son la exploración neurológica, la resonancia magnética cerebral y medular con contraste, y el análisis y la citología del líquido cefalorraquídeo (LCR), aunque recientemente se están investigando técnicas como la detección de células tumorales y ADN circulante en el LCR, que aumentan la sensibilidad diagnóstica. Con las terapias disponibles en la actualidad el objetivo del tratamiento no es curativo, sino retrasar y disminuir los síntomas y preservar la calidad de vida de los pacientes, e implica un enfoque multimodal que puede incluir radioterapia, quimioterapia intratecal y/o sistémica y cirugía. El tratamiento debe ser individualizado y se basa principalmente en guías y opiniones de expertos. Actualmente se están llevando a cabo ensayos clínicos prometedores de fármacos contra dianas moleculares e inmunoterápicos. Este artículo es una revisión actualizada de la MN, e incluye epidemiologia, presentación clínica, diagnóstico, pronóstico, manejo y opciones terapéuticas; se dirige al neurólogo general, y en particular al neurólogo que ejerce su práctica en centros con pacientes oncológicos.</p></span>" ] ] "NotaPie" => array:1 [ 0 => array:2 [ "etiqueta" => "☆" "nota" => "<p class="elsevierStyleNotepara" id="npar0005">Please cite this article as: García Molina E, Penas-Prado M. Meningitis neoplásica en tumores sólidos: revisión actualizada de diagnóstico, pronóstico, manejo terapéutico y direcciones futuras. Neurología. 2022;37:794–805.</p>" ] ] "multimedia" => array:8 [ 0 => array:8 [ "identificador" => "fig0005" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 1415 "Ancho" => 2072 "Tamanyo" => 249511 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0005" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">(a) Several axial slices from a contrast T1-weighted MRI sequence, showing enhancement and thickening of the dura mater and leptomeninges, periventricular enhancement, and nodular enhancement of the fourth ventricle. (b) Contrast T1-weighted brain MRI scan showing enhancement of the left acoustic-facial bundle. (c) Contrast T1- and T2-weighted sagittal MRI scan of the lumbar spine, showing thickening and enhancement of the roots of the cauda equina.</p>" ] ] 1 => array:8 [ "identificador" => "fig0010" "etiqueta" => "Figure 2" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr2.jpeg" "Alto" => 1788 "Ancho" => 3333 "Tamanyo" => 488506 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0010" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Treatment algorithm.</p>" ] ] 2 => array:8 [ "identificador" => "fig0015" "etiqueta" => "Figure 3" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr3.jpeg" "Alto" => 1873 "Ancho" => 855 "Tamanyo" => 124726 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0015" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">Ommaya® reservoir.</p>" ] ] 3 => array:8 [ "identificador" => "tbl0005" "etiqueta" => "Table 1" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0020" "detalle" => "Table " "rol" => "short" ] ] "tabla" => array:1 [ "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"><span class="elsevierStyleItalic">Cerebral hemispheres</span> (15%) \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"><span class="elsevierStyleHsp" style=""></span>Headache \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"><span class="elsevierStyleHsp" style=""></span>Confusion \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"><span class="elsevierStyleHsp" style=""></span>Hemiparesis \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"><span class="elsevierStyleHsp" style=""></span>Impaired consciousness \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"><span class="elsevierStyleHsp" style=""></span>Focal seizures with or without secondary generalisation \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"><span class="elsevierStyleItalic">Cranial nerves</span> (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"><span class="elsevierStyleHsp" style=""></span>Diplopia (the sixth cranial nerve is most frequently affected, followed by the third and fourth cranial nerves) \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"><span class="elsevierStyleHsp" style=""></span>Motor or sensory alterations of the fifth cranial nerve \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"><span class="elsevierStyleHsp" style=""></span>Hypoacusia due to eighth cranial nerve involvement \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"><span class="elsevierStyleItalic">Spinal cord and/or nerve roots</span> (60%) \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"><span class="elsevierStyleHsp" style=""></span>Weakness \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"><span class="elsevierStyleHsp" style=""></span>Segmental sensory disturbance \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"><span class="elsevierStyleHsp" style=""></span>Loss of sphincter control \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"><span class="elsevierStyleHsp" style=""></span>Radicular or back pain \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"><span class="elsevierStyleItalic">Hydrocephalus</span> (26%) <span class="elsevierStyleItalic">(communicating or obstructive)</span> \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"><span class="elsevierStyleHsp" style=""></span>Symptoms of intracranial hypertension (nausea, vomiting, headache, impaired consciousness) \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"><span class="elsevierStyleHsp" style=""></span>Episodes of transient neurological dysfunction (plateau waves) \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] ] ] ] "descripcion" => array:1 [ "en" => "<p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Clinical characteristics of neoplastic meningitis.</p>" ] ] 4 => array:8 [ "identificador" => "tbl0010" "etiqueta" => "Table 2" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0025" "detalle" => "Table " "rol" => "short" ] ] "tabla" => array:1 [ "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=""><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">Brain MRI \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Brain and spinal cord, 3 segments with contrast \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Sensitivity 70%-80% \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 rowgroup " rowspan="4" align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">CSF analysis, general parameters</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Elevated opening pressure (> 20 cm H<span class="elsevierStyleInf">2</span>O) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">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 " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Lymphocytic pleocytosis (> 4 leukocytes/mm<span class="elsevierStyleSup">3</span>) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">25%-64% \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">Low glucose level (< 60 mg/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">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 " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Elevated protein level (> 50 mg/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">60%-90% \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">CSF cytology (gold standard) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Increased diagnostic sensitivity if: \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Sensitivity 60%-90% \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"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t"><ul class="elsevierStyleList" id="lis0005"><li class="elsevierStyleListItem" id="lsti0005"><span class="elsevierStyleLabel">•</span><p id="par0005" class="elsevierStylePara elsevierViewall">2 repeated lumbar punctures</p></li></ul> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Specificity 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"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t"><ul class="elsevierStyleList" id="lis0010"><li class="elsevierStyleListItem" id="lsti0010"><span class="elsevierStyleLabel">•</span><p id="par0010" class="elsevierStylePara elsevierViewall">2 samples</p></li></ul> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t"> \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"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t"><ul class="elsevierStyleList" id="lis0015"><li class="elsevierStyleListItem" id="lsti0015"><span class="elsevierStyleLabel">•</span><p id="par0015" class="elsevierStylePara elsevierViewall">Volume of at least 10.5 mL for each sample</p></li></ul> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t"> \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"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t"><ul class="elsevierStyleList" id="lis0020"><li class="elsevierStyleListItem" id="lsti0020"><span class="elsevierStyleLabel">•</span><p id="par0020" class="elsevierStylePara elsevierViewall">Samples processed immediately</p></li></ul> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t"> \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] ] ] ] "descripcion" => array:1 [ "en" => "<p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">Diagnostic tests and sensitivity.</p>" ] ] 5 => array:8 [ "identificador" => "tbl0015" "etiqueta" => "Table 3" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0030" "detalle" => "Table " "rol" => "short" ] ] "tabla" => array:1 [ "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">Score \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">State of health \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">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">Normal, no complaints or evidence of disease \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">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">Able to perform normal activity; minor signs and symptoms of disease \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">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">Able to perform normal activity with effort; some signs and symptoms of disease \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">70 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Cares for self, unable to perform normal activity or to do active work \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">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">Requires occasional assistance but is able to care for most of own needs \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">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">Requires considerable assistance and frequent medical care \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">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">Requires special care and assistance; disabled \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">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">Hospitalisation indicated, although death not imminent; severely disabled \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">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">Hospitalisation necessary; active supportive treatment required, very sick \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">10 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Fatal processes progressing rapidly; moribund \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">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">Dead \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] ] ] ] "descripcion" => array:1 [ "en" => "<p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">Karnofsky performance status scale.</p>" ] ] 6 => array:8 [ "identificador" => "tbl0020" "etiqueta" => "Table 4" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0035" "detalle" => "Table " "rol" => "short" ] ] "tabla" => array:1 [ "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">Good prognosis \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">Poor prognosis \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"><ul class="elsevierStyleList" id="lis0025"><li class="elsevierStyleListItem" id="lsti0025"><span class="elsevierStyleLabel">•</span><p id="par0025" class="elsevierStylePara elsevierViewall">KPS > 60</p></li></ul> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t"><ul class="elsevierStyleList" id="lis0030"><li class="elsevierStyleListItem" id="lsti0030"><span class="elsevierStyleLabel">•</span><p id="par0030" class="elsevierStylePara elsevierViewall">KPS ≤ 60</p></li></ul> \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"><ul class="elsevierStyleList" id="lis0035"><li class="elsevierStyleListItem" id="lsti0035"><span class="elsevierStyleLabel">•</span><p id="par0035" class="elsevierStylePara elsevierViewall">Primary tumour under control</p></li></ul> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t"><ul class="elsevierStyleList" id="lis0040"><li class="elsevierStyleListItem" id="lsti0040"><span class="elsevierStyleLabel">•</span><p id="par0040" class="elsevierStylePara elsevierViewall">Primary tumour not controlled; few treatment options</p></li></ul> \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"><ul class="elsevierStyleList" id="lis0045"><li class="elsevierStyleListItem" id="lsti0045"><span class="elsevierStyleLabel">•</span><p id="par0045" class="elsevierStylePara elsevierViewall">No severe neurological deficits</p></li></ul> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t"><ul class="elsevierStyleList" id="lis0050"><li class="elsevierStyleListItem" id="lsti0050"><span class="elsevierStyleLabel">•</span><p id="par0050" class="elsevierStylePara elsevierViewall">Severe neurological deficits</p></li></ul> \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"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t"><ul class="elsevierStyleList" id="lis0055"><li class="elsevierStyleListItem" id="lsti0055"><span class="elsevierStyleLabel">•</span><p id="par0055" class="elsevierStylePara elsevierViewall">Encephalopathy</p></li></ul> \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"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t"><ul class="elsevierStyleList" id="lis0060"><li class="elsevierStyleListItem" id="lsti0060"><span class="elsevierStyleLabel">•</span><p id="par0060" class="elsevierStylePara elsevierViewall">High disease burden of NM</p></li></ul> \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] ] ] ] "descripcion" => array:1 [ "en" => "<p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">Treatment groups.</p>" ] ] 7 => array:8 [ "identificador" => "tbl0025" "etiqueta" => "Table 5" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0040" "detalle" => "Table " "rol" => "short" ] ] "tabla" => array:1 [ "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">Drug \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">Consolidation \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">Maintenance \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">Methotrexate \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">10-15 mg 2 times/week for 4 weeks \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">10-15 mg 1 time/week for 4 weeks \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">10-15 mg 1 time/month \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">Cytarabine \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">25-100 mg 2 times/week for 4 weeks \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">25-100 mg 1 time/week for 4 weeks \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">25-100 mg 1 time/month \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">Cytarabine liposome \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">50 mg 1 time/2 weeks for 8 weeks \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">50 mg 1 time every 4 weeks \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">50 mg 1 time every 4 weeks \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">Thiotepa \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\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 mg 2 times/week for 4 weeks \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\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 mg 1 time/week for 4 weeks \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\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 mg 1 time/month \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">Topotecan \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.4 mg 2 times/week for 6 weeks \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.4 mg 1 time/week for 6 weeks \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0.4 mg 2 times/month for 4 months and subsequently 1 time/month \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] ] ] ] "descripcion" => array:1 [ "en" => "<p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">Intrathecal chemotherapy administration protocols.</p>" ] ] ] "bibliografia" => array:2 [ "titulo" => "References" "seccion" => array:1 [ 0 => array:2 [ "identificador" => "bibs0005" "bibliografiaReferencia" => array:84 [ 0 => array:3 [ "identificador" => "bib0005" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Therapy of leptomeníngeal metástasis in solid tumors" "autores" => array:1 [ 0 => array:2 [ "etal" => true "autores" => array:6 [ …6] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1016/j.ctrv.2015.12.004" "Revista" => array:6 [ "tituloSerie" => "Cancer Treat Rev" "fecha" => "2016" "volumen" => "43" "paginaInicial" => "83" "paginaFinal" => "91" "link" => array:1 [ 0 => array:2 [ …2] ] ] ] ] ] ] ] 1 => array:3 [ "identificador" => "bib0010" "etiqueta" => "2" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Intrathecal chemotherapy for treatment of leptomeningeal dissemination of metastatic tumours" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:1 [ …1] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1016/S1470-2045(10)70034-6" "Revista" => array:6 [ "tituloSerie" => "Lancet Oncol" "fecha" => "2010" "volumen" => "11" "paginaInicial" => "871" "paginaFinal" => "879" "link" => array:1 [ 0 => array:2 [ …2] ] ] ] ] ] ] ] 2 => array:3 [ "identificador" => "bib0015" "etiqueta" => "3" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Neoplastic meningitis" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:1 [ …1] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1634/theoncologist.2008-0138" "Revista" => array:6 [ "tituloSerie" => "Oncologist" "fecha" => "2008" "volumen" => "13" "paginaInicial" => "967" "paginaFinal" => "977" "link" => array:1 [ 0 => array:2 [ …2] ] ] ] ] ] ] ] 3 => array:3 [ "identificador" => "bib0020" "etiqueta" => "4" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Neoplastic meningitis" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:1 [ …1] ] ] ] ] "host" => array:1 [ 0 => array:1 [ "Revista" => array:5 [ "tituloSerie" => "Hand 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"etal" => false "autores" => array:3 [ …3] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1002/1097-0142(19820215)49:4<759::aid-cncr2820490427>3.0.co;2-7" "Revista" => array:6 [ "tituloSerie" => "Cancer" "fecha" => "1982" "volumen" => "49" "paginaInicial" => "759" "paginaFinal" => "772" "link" => array:1 [ 0 => array:2 [ …2] ] ] ] ] ] ] ] 6 => array:3 [ "identificador" => "bib0035" "etiqueta" => "7" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Gastric leptomeningeal carcinomatosis: multi-center retrospective analysis of 54 cases" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:2 [ …2] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.3748/wjg.15.5086" "Revista" => array:6 [ "tituloSerie" => "World J Gastroenterol" "fecha" => "2009" "volumen" => "15" "paginaInicial" => "5086" "paginaFinal" => "5090" "link" => array:1 [ 0 => array:2 [ …2] ] ] ] ] ] ] ] 7 => array:3 [ "identificador" => "bib0040" 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] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1001/archneur.1996.00550070064013" "Revista" => array:6 [ "tituloSerie" => "Arch Neurol" "fecha" => "1996" "volumen" => "53" "paginaInicial" => "626" "paginaFinal" => "632" "link" => array:1 [ 0 => array:2 [ …2] ] ] ] ] ] ] ] 11 => array:3 [ "identificador" => "bib0060" "etiqueta" => "12" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Neoplastic meningitis. Review of a clinical series" "autores" => array:1 [ 0 => array:2 [ "etal" => true "autores" => array:6 [ …6] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1016/j.nrl.2010.07.020" "Revista" => array:6 [ "tituloSerie" => "Neurologia" "fecha" => "2011" "volumen" => "26" "paginaInicial" => "227" "paginaFinal" => "232" "link" => array:1 [ 0 => array:2 [ …2] ] ] ] ] ] ] ] 12 => array:3 [ "identificador" => "bib0065" "etiqueta" => "13" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Leptomeningeal disease: current diagnostic and therapeutic strategies" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:1 [ …1] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.18632/oncotarget.20272" "Revista" => array:6 [ "tituloSerie" => "Oncotarget" "fecha" => "2017" "volumen" => "8" "paginaInicial" => "73312" "paginaFinal" => "73328" "link" => array:1 [ 0 => array:2 [ …2] ] ] ] ] ] ] ] 13 => array:3 [ "identificador" => "bib0070" "etiqueta" => "14" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Electrographic correlates of plateau waves in patients with leptomeningeal metastases" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:1 [ …1] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1177/1941874416648194" "Revista" => array:6 [ "tituloSerie" => "Neurohospitalist" "fecha" => "2016" "volumen" => "6" "paginaInicial" => "161" "paginaFinal" => "166" "link" => array:1 [ 0 => array:2 [ …2] ] ] ] ] ] ] ] 14 => array:3 [ "identificador" => "bib0075" "etiqueta" => "15" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Leptomeningeal metastases of solid cander" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:2 [ …2] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1097/WCO.0000000000000393" "Revista" => array:6 [ "tituloSerie" => "Curr Opin Neurol" 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Year/Month | Html | Total | |
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2024 November | 7 | 0 | 7 |
2024 October | 47 | 11 | 58 |
2024 September | 58 | 20 | 78 |
2024 August | 50 | 13 | 63 |
2024 July | 35 | 5 | 40 |
2024 June | 31 | 14 | 45 |
2024 May | 29 | 6 | 35 |
2024 April | 49 | 12 | 61 |
2024 March | 259 | 18 | 277 |
2024 February | 98 | 20 | 118 |
2024 January | 64 | 16 | 80 |
2023 December | 73 | 19 | 92 |
2023 November | 76 | 16 | 92 |
2023 October | 87 | 23 | 110 |
2023 September | 40 | 14 | 54 |
2023 August | 55 | 9 | 64 |
2023 July | 84 | 18 | 102 |
2023 June | 72 | 10 | 82 |
2023 May | 111 | 20 | 131 |
2023 April | 76 | 11 | 87 |
2023 March | 32 | 29 | 61 |
2023 February | 23 | 13 | 36 |
2023 January | 19 | 13 | 32 |
2022 December | 21 | 17 | 38 |
2022 November | 50 | 7 | 57 |
2022 October | 19 | 9 | 28 |
2022 September | 15 | 16 | 31 |
2022 August | 11 | 7 | 18 |
2022 July | 10 | 14 | 24 |
2022 June | 11 | 9 | 20 |
2022 May | 7 | 7 | 14 |
2022 April | 8 | 8 | 16 |
2022 March | 10 | 21 | 31 |
2022 February | 8 | 12 | 20 |
2022 January | 9 | 5 | 14 |
2021 December | 14 | 19 | 33 |
2021 November | 6 | 12 | 18 |
2021 October | 1 | 2 | 3 |