<?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>1130-0108</journal-id>
<journal-title><![CDATA[Revista Española de Enfermedades Digestivas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. esp. enferm. dig.]]></abbrev-journal-title>
<issn>1130-0108</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Española de Patología Digestiva]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1130-01082018001200007</article-id>
<article-id pub-id-type="doi">10.17235/reed.2018.5473/2018</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Supervivencia del injerto tras trasplante hepático: aproximación a un nuevo índice de riesgo español]]></article-title>
<article-title xml:lang="en"><![CDATA[Graft survival after liver transplantation: an approach to a new Spanish risk index]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Araiz-Burdio]]></surname>
<given-names><![CDATA[Juan-José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A3 "/>
<xref ref-type="aff" rid="Af4"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aulló]]></surname>
<given-names><![CDATA[María-Trinidad Serrano]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A5"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Gil]]></surname>
<given-names><![CDATA[Agustín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A7"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pascual-Bielsa]]></surname>
<given-names><![CDATA[Ana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lue]]></surname>
<given-names><![CDATA[Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A5"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lorente-Pérez]]></surname>
<given-names><![CDATA[Sara]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A5"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villanueva-Anadón]]></surname>
<given-names><![CDATA[Beatriz]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Suárez-Pinilla]]></surname>
<given-names><![CDATA[Miguel-Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A4"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Universitario Lozano Blesa Coordinación de Trasplantes ]]></institution>
<addr-line><![CDATA[Zaragoza ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Universitario Lozano Blesa Unidad de Cuidados Intensivos ]]></institution>
<addr-line><![CDATA[Zaragoza ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Zaragoza Departamentos de Medicina ]]></institution>
<addr-line><![CDATA[Zaragoza ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Instituto de Investigación Sanitaria de Aragón (IIS Aragón)  ]]></institution>
<addr-line><![CDATA[Zaragoza ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Hospital Universitario Lozano Blesa Departamento de Gastroenterología Unidad de Hígado]]></institution>
<addr-line><![CDATA[Zaragoza ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Hospital Universitario Lozano Blesa Departamento de Cirugía Unidad de Cirugía Hepática]]></institution>
<addr-line><![CDATA[Zaragoza ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af7">
<institution><![CDATA[,Universidad de Zaragoza Departamentos de Cirugía ]]></institution>
<addr-line><![CDATA[Zaragoza ]]></addr-line>
<country>Spain</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>110</volume>
<numero>12</numero>
<fpage>782</fpage>
<lpage>793</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_arttext&amp;pid=S1130-01082018001200007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_abstract&amp;pid=S1130-01082018001200007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_pdf&amp;pid=S1130-01082018001200007&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  existen diversos indicadores para la valoración de la supervivencia del injerto hepático (DRI americano y ET-DRI europeo, entre otros), pero existen diferencias importantes entre los programas de trasplante de los diferentes países y podría ser que dichos indicadores no sean válidos en nuestro medio.  Objetivos:  el objetivo de este estudio es describir un nuevo indicador nacional de riesgo del injerto hepático a partir de los resultados del Registro Español de Trasplante Hepático (RETH) y validar el DRI y el ET-DRI.  Metodología:  el RETH incluye un análisis de Cox de los factores relacionados con la supervivencia del injerto. En base a sus resultados se define el indicador graft risk index (GRI). Las variables que contempla dependen del proceso de donación: edad, causa de muerte, compatibilidad sanguínea y tiempo de isquemia fría; y del receptor: edad, enfermedad de base, virus C, número de trasplante, estado UNOS y técnica quirúrgica. Se obtuvo la curva de la regresión logística y se calcularon las curvas de supervivencia del injerto por estratificación. La precisión se evaluó mediante el área ROC.  Resultados:  un GRI de 1 se corresponde con una probabilidad de pérdida del injerto del 23,25%; cada punto de aumento del GRI supone que la probabilidad se multiplica por 1,33. El GRI mostró la mejor discriminación por estratificación. El área ROC del DRI fue 0,54 (95% IC, 0,50-0,59) y del ET-DRI, 0,56 (95% IC, 0,51-0,61), frente al GRI 0,70 (95% IC, 0,65-0,73) (p &lt; 0,0001).  Conclusiones:  el DRI y el ET-DRI no parecen útiles en nuestro medio y sería necesario disponer de un indicador propio. El GRI requiere un estudio nacional que perfile más el indicador y realice una validación más amplia.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  several indicators are available to assess liver graft survival, including the American DRI and the European ET-DRI. However, there are significant differences between transplant programs of different countries, and the previously mentioned indicators might be not valid in our setting.  Objectives:  the aim of the study was to describe a new national liver graft risk indicator based on the results obtained from the Registro Español de Trasplante Hepático (RETH) and to validate the DRI and ET-DRI indicators.  Methods:  the RETH includes a Cox analysis of factors associated with graft survival; the graft risk index (GRI) indicator was defined based on these results. The variables considered are dependent upon the donation conditions (age, cause of death, blood compatibility and cold ischemia time) and the transplant recipient (age, underlying disease, hepatitis C virus, transplant number, UNOS status and surgical technique). A logistic regression curve was obtained and graft survival curves were calculated by stratification. Precision was assessed using the ROC analysis.  Results:  a GRI of 1 represents a probability of graft loss of 23.25%; each point increase in the GRI score multiplies this probability by 1.33. The best discrimination of GRI was obtained by stratification. The DRI ROC area was 0.54 (95% CI, 0.50-0.59) and the ET-DRI ROC area was 0.56 (95% CI, 0.51-0.61), compared to 0.70 (95% CI, 0.65-0.73) (p &lt; 0.0001) for the GRI.  Conclusions:  both the DRI and ET-DRI do not seem to be useful in our setting. Hence a national indicator is more desirable. The GRI requires a national study in order to further streamline and assess this indicator.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Trasplante de hígado]]></kwd>
<kwd lng="es"><![CDATA[Supervivencia del injerto]]></kwd>
<kwd lng="es"><![CDATA[Marcador pronóstico]]></kwd>
<kwd lng="es"><![CDATA[Validación externa]]></kwd>
<kwd lng="en"><![CDATA[Liver transplantation]]></kwd>
<kwd lng="en"><![CDATA[Graft survival]]></kwd>
<kwd lng="en"><![CDATA[Prognostic score]]></kwd>
<kwd lng="en"><![CDATA[External validation]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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