<?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>1817-5996</journal-id>
<journal-title><![CDATA[Revista Cubana de Reumatología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cuba Reumatol]]></abbrev-journal-title>
<issn>1817-5996</issn>
<publisher>
<publisher-name><![CDATA[Editorial CIMEQ]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1817-59962018000300008</article-id>
<article-id pub-id-type="doi">10.5281/zenodo.1467775</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Derrames pleurales trasudados y exudados: clasificación]]></article-title>
<article-title xml:lang="en"><![CDATA[Pleural effusion transudate and exudate: classification]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Quesada Guillén]]></surname>
<given-names><![CDATA[Roberto Rosendo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pozo Abreu]]></surname>
<given-names><![CDATA[Silvia María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez Larrarte]]></surname>
<given-names><![CDATA[José Pedro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Ciencias Médicas de La Habana Hospital Docente Clínico-Quirúrgico Miguel Enríquez Facultad de Ciencias Médicas Miguel Enríquez]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Ciencias Médicas de La Habana Facultad de Ciencias Médicas Miguel Enríquez Laboratorio Central de Líquido Cefalorraquídeo]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<volume>20</volume>
<numero>3</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1817-59962018000300008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1817-59962018000300008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1817-59962018000300008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Es importante saber diferenciar los derrames pleurales como resultado de un exudado o de un trasudado para poder diagnosticar las diferentes causas de esta enfermedad. Se describieron las características y la formación del líquido pleural, las causas según el tipo de derrame, así como los procedimientos necesarios para tomar muestras útiles para un mejor análisis en el laboratorio clínico. Se planteó una estrategia actualizada para diferenciar los líquidos trasudados y exudados mediante métodos bioquímicos propuestos por Light y el progresivo enriquecimiento de esta estrategia por otros investigadores. Se plantea la utilidad del recuento de las células. Se analizaron algunas limitaciones que existen para diferenciar los tipos de derrames y la de algunos marcadores bioquímicos para diferenciar un exudado de un trasudado, así como los procedimientos que pueden aplicarse en el laboratorio clínico. Encontramos que el criterio de Light es el más eficiente para diferenciar los exudados de los trasudados en los derrames pleurales de causa desconocida.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT It is important to know how to differentiate pleural effusions resulting from whether an exudate or transudate in order to diagnose the different causes of this disease. We describe the characteristics and formation of pleural fluid, the causes for each type of effusion, as well as the necessary procedures to take useful samples that allow better analysis in the clinical laboratory. An updated strategy was designed to differentiate transudate and exudate fluids through the biochemical methods proposed by Light and by other researchers who have developed and enriched their methods. We also mentioned the usefulness of cell count. We analyzed some limitations to differentiate the types of effusions and those some biochemical markers present to distinguish an exudate from a transudate, as well as the procedures that can be applied in the clinical laboratory. We concluded that Light's criterion is the most efficient to differentiate exudates from transudates in pleural effusions of unknown cause.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[derrame pleural]]></kwd>
<kwd lng="es"><![CDATA[diferenciación]]></kwd>
<kwd lng="es"><![CDATA[exudado]]></kwd>
<kwd lng="es"><![CDATA[trasudado]]></kwd>
<kwd lng="en"><![CDATA[pleural effusion]]></kwd>
<kwd lng="en"><![CDATA[differentiation]]></kwd>
<kwd lng="en"><![CDATA[exudate]]></kwd>
<kwd lng="en"><![CDATA[transudate]]></kwd>
</kwd-group>
</article-meta>
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