<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0465-546X</journal-id>
<journal-title><![CDATA[Medicina y Seguridad del Trabajo]]></journal-title>
<abbrev-journal-title><![CDATA[Med. segur. trab.]]></abbrev-journal-title>
<issn>0465-546X</issn>
<publisher>
<publisher-name><![CDATA[Escuela Nacional de Medicina del Trabajo. Instituto de Salud Carlos III]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0465-546X2022000300004</article-id>
<article-id pub-id-type="doi">10.4321/s0465-546x2022000300004</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Efectos neurológicos en trabajadores expuestos a tolueno. Revisión sistemática]]></article-title>
<article-title xml:lang="en"><![CDATA[Neurological effects in workers exposed to toluene. Systematic review]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alonso-Perarnau]]></surname>
<given-names><![CDATA[Susana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Yánez]]></surname>
<given-names><![CDATA[Tivisay]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Durán-Pérez]]></surname>
<given-names><![CDATA[Mercedes]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Andrés-Sanz]]></surname>
<given-names><![CDATA[Álvaro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Universitario Clínico San Carlos Servicio de Prevención de Riesgos Laborales ]]></institution>
<addr-line><![CDATA[Madrid ]]></addr-line>
<country>España</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Universitario Fundación Jiménez Díaz Servicio de Prevención de Riesgos Laborales ]]></institution>
<addr-line><![CDATA[Madrid ]]></addr-line>
<country>España</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital Universitario de Guadalajara Servicio de Prevención de Riesgos Laborales ]]></institution>
<addr-line><![CDATA[Guadalajara ]]></addr-line>
<country>España</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<volume>68</volume>
<numero>268</numero>
<fpage>171</fpage>
<lpage>189</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_arttext&amp;pid=S0465-546X2022000300004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_abstract&amp;pid=S0465-546X2022000300004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_pdf&amp;pid=S0465-546X2022000300004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción y objetivo: el tolueno es un disolvente orgánico derivado del benceno empleado en diversas industrias, con potenciales efectos nocivos para los trabajadores. Este estudio pretende conocer los posibles efectos neurológicos que presentan los trabajadores expuestos a tolueno.  Material y métodos: revisión sistemática de estudios publicados en inglés y español entre enero/2000-diciembre/2021. Las bases de datos consultadas fueron MEDLINE, WOS, Scopus, Embase, LILACS, IBECS y Cochrane Library. La calidad de los estudios se evaluó mediante la declaración STROBE y el nivel de evidencia mediante los criterios SIGN.  Resultados: Se incluyeron 14 estudios observacionales (calidad entre 13-18, nivel de evidencia entre 2+ y 3). Ocho estudios examinaron síntomas neurológicos inespecíficos y alteraciones del comportamiento encontrando un aumento de síntomas como cefalea, náuseas o vómitos, y una disminución del rendimiento motor y atención en trabajadores expuestos a tolueno (p&lt;0,05). Cuatro estudios examinaron los efectos visuales, encontrando valores de Índice de Confusión de Color (CCI) más elevados en el grupo expuesto (p&lt;0,05). Por último, dos estudios examinaron los efectos del tolueno sobre la audición en co-exposición con ruido, observando en uno de ellos agravamiento de la pérdida auditiva en ambiente ruidoso (concentración media 33-164,6ppm), (p&lt;0,001); mientras que en el otro estudio no se observaron efectos a concentraciones &#8804;50ppm.  Conclusión: la exposición laboral a tolueno produce efectos neurológicos como síntomas inespecíficos, alteraciones del comportamiento, y efectos en la visión y en la audición. No obstante, es necesario realizar estudios con mejor diseño y calidad metodológica, ajustando factores de confusión y con mayor tamaño muestral.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction and objective: toluene is an organic solvent derived from benzene used in various industries, with potential harmful effects for workers. This study aims to determine the possible neurological effects of workers exposed to toluene.  Material and methods: Systematic review of studies published in English and Spanish between January/2000-December/2021. The databases consulted were MEDLINE, WOS, Scopus, Embase, LILACS, IBECS and Cochrane Library. Study quality was assessed using the STROBE statement and the level of evidence using the SIGN criteria.  Results: 14 observational studies were included (quality between 13-18, level of evidence between 2+ and 3). Eight studies examined non-specific neurological symptoms and behavioral alterations, finding an increase in symptoms such as headache, nausea or vomiting, and a decrease in motor performance and attention in workers exposed to toluene (p&lt;0.05). Four studies examined visual effects, finding higher Color Confusion Index (CCI) values in the exposed group (p&lt;0.05). Finally, two studies examined the effects of toluene on hearing in co-exposure with noise observing in one of them aggravation of hearing loss in noisy environment (mean concentration 33-164.6ppm), (p&lt;0.001); while in the other study no effects were observed at concentrations &#8804;50ppm.  Conclusion: occupational exposure to toluene produces neurological effects such as nonspecific symptoms, behavioral alterations, and effects on vision and hearing. However, it is necessary to carry out studies with better design and methodological quality, adjusting for confounding factors and with a larger sample size.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[tolueno]]></kwd>
<kwd lng="es"><![CDATA[exposición ocupacional]]></kwd>
<kwd lng="es"><![CDATA[efectos neurológicos]]></kwd>
<kwd lng="es"><![CDATA[defectos en la visión del color]]></kwd>
<kwd lng="es"><![CDATA[pérdida de audición]]></kwd>
<kwd lng="en"><![CDATA[toluene]]></kwd>
<kwd lng="en"><![CDATA[occupational exposure]]></kwd>
<kwd lng="en"><![CDATA[neurological effects]]></kwd>
<kwd lng="en"><![CDATA[color vision defects]]></kwd>
<kwd lng="en"><![CDATA[hearing loss]]></kwd>
</kwd-group>
</article-meta>
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