<?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>0484-7903</journal-id>
<journal-title><![CDATA[Revista mexicana de anestesiología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. anestesiol.]]></abbrev-journal-title>
<issn>0484-7903</issn>
<publisher>
<publisher-name><![CDATA[Colegio Mexicano de Anestesiología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0484-79032022000100011</article-id>
<article-id pub-id-type="doi">10.35366/102897</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Validation of a stratification system of surgical risk for valve surgery: VMCP score]]></article-title>
<article-title xml:lang="es"><![CDATA[Validación de un sistema de estratificación de riesgo quirúrgico para cirugía valvular: Escala VMCP]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Santiago-López]]></surname>
<given-names><![CDATA[Janaí]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[León-Ramírez]]></surname>
<given-names><![CDATA[Víctor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cruz-Guerrero]]></surname>
<given-names><![CDATA[Maryen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Centro Médico Nacional «Siglo XXI» Hospital of Cardiology]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Centro Médico Nacional «Siglo XXI» Hospital of Cardiology]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Centro Médico Nacional «Siglo XXI» Hospital of Cardiology]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2022</year>
</pub-date>
<volume>45</volume>
<numero>1</numero>
<fpage>11</fpage>
<lpage>15</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0484-79032022000100011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0484-79032022000100011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0484-79032022000100011&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  One of the various instruments that can be used to evaluate the impact of risk factors on the survival of patients undergoing valve surgery is the VMCP score. This work evaluates the performance of this tool.  Objective:  To validate the surgical risk score for heart valve surgery (VMCP score) in our hospital unit.  Material and method:  A prospective cohort study was conducted on 239 patients undergoing heart valve surgery, estimating the risk with the VMCP score. The sample was divided into two groups at a cut-off point of 8. The discriminating power of the score was analyzed based on the area under the ROC curve. A value of p &lt; 0.05 was considered significant. The data were processed using SPSS v.25.0.  Results:  The score stratified the samples as follows: 40.6% of patients were without risk and 59.4% were at risk. The evaluation of the calibration component showed that the score was not appropriate for our sample (Cronbach&#8217;s alpha coefficient: 0.59). The discrimination component of the score showed a poor capacity to distinguish between the population at risk of mortality (0.630) and/or morbidity (0.655).  Conclusion:  It is not valid to use the surgical risk score for heart valve surgery (VMCP score) in our hospital unit.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  Existen diversos instrumentos para evaluar el impacto de los factores de riesgo sobre la supervivencia del paciente sometido a cirugía valvular, entre los que encontramos la escala VMCP, por lo que conminaremos a una evaluación del desempeño.  Objetivo:  Validar la escala de riesgo quirúrgico para cirugía valvular: Escala VMCP en nuestra unidad hospitalaria.  Material y métodos:  Se realizó un estudio de cohortes prospectivo en 239 pacientes sometidos a cirugía valvular y se les estimó el riesgo mediante la escala VMCP. La muestra se dividió en dos grupos de acuerdo con un punto de corte de 8. La capacidad de discriminación se analizó mediante el área bajo la curva ROC. Una p &lt; 0.05 fue significativa. Los datos se procesaron con SPSS v-25.0.  Resultados:  La estratificación de la escala mostró: 40.6% de pacientes sin riesgo y 59.4% con riesgo. La evaluación del componente de calibración mostró que la escala no se ajusta a nuestra muestra (Coeficiente Alfa de Cronbach 0.59). La evaluación del componente de discriminación mostró que no puede distinguir la población con riesgo de mortalidad (0.630) y/o morbilidad (0.655).  Conclusión:  No es válido el uso del sistema de estratificación de riesgo quirúrgico para cirugía valvular, la escala VMCP, en nuestra unidad hospitalaria.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Heart surgery]]></kwd>
<kwd lng="en"><![CDATA[predictive models]]></kwd>
<kwd lng="en"><![CDATA[risk measurement]]></kwd>
<kwd lng="en"><![CDATA[hospital mortality]]></kwd>
<kwd lng="es"><![CDATA[Cirugía cardiaca]]></kwd>
<kwd lng="es"><![CDATA[modelos predictivos]]></kwd>
<kwd lng="es"><![CDATA[medición de riesgo]]></kwd>
<kwd lng="es"><![CDATA[mortalidad hospitalaria]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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