<?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>1405-9940</journal-id>
<journal-title><![CDATA[Archivos de cardiología de México]]></journal-title>
<abbrev-journal-title><![CDATA[Arch. Cardiol. Méx.]]></abbrev-journal-title>
<issn>1405-9940</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Cardiología Ignacio Chávez]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-99402017000100018</article-id>
<article-id pub-id-type="doi">10.1016/j.acmx.2016.07.001</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[EuroSCORE subestima el riesgo de mortalidad en cirugía cardiaca valvular de población mexicana]]></article-title>
<article-title xml:lang="en"><![CDATA[EuroSCORE underestimate the mortality risk in cardiac valve surgery of Mexican population]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Chávez]]></surname>
<given-names><![CDATA[Laura L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Figueroa-Solano]]></surname>
<given-names><![CDATA[Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Muñoz-Consuegra]]></surname>
<given-names><![CDATA[Carlos E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Avila-Vanzzini]]></surname>
<given-names><![CDATA[Nydia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Kuri-Alfaro]]></surname>
<given-names><![CDATA[Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Cardiología Ignacio Chávez  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Cardiología Ignacio Chávez  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Nacional de Cardiología Ignacio Chávez  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2017</year>
</pub-date>
<volume>87</volume>
<numero>1</numero>
<fpage>18</fpage>
<lpage>25</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-99402017000100018&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-99402017000100018&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-99402017000100018&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Objetivo:  El European System for Cardiac Operative Risk Evaluation (EuroSCORE) estratifica el riesgo quirúrgico en cirugía cardiaca de manera fácil y accesible; se validó en Norteamérica con buenos resultados, pero en muchos países de Latinoamérica se utiliza rutinariamente sin validación previa. Nuestro objetivo fue validar EuroSCORE en pacientes con cirugía valvular en el Instituto Nacional de Cardiología Ignacio Chávez (INCICh) de México.  Métodos:  Se aplicaron los modelos de EuroSCORE aditivo y logístico para predecir mortalidad en pacientes con cirugía valvular de marzo de 2004 a marzo de 2008. Se usó la prueba de bondad de ajuste de Hosmer-Lemeshow para evaluar la calibración. Se calculó el área bajo la curva ROC para determinar la discriminación.  Resultados:  Se incluyeron 1,188 pacientes con edades de 51.3 ± 14.5 años, 52% mujeres. Hubo diferencias significativas en la prevalencia de los factores de riesgo entre la población del INCICh y del EuroSCORE. La mortalidad total fue de 9.68% con predichas de 5% y 5.6% por EuroSCORE aditivo y logístico. De acuerdo a EuroSCORE aditivo tenían riesgo bajo 11.3%, intermedio 52.9% y alto 35.9%; para estos grupos la mortalidad fue de 0.7%, 6.4% y 17.4% contra las predichas de 2%, 3.9% y 7.64%. La prueba de Hosmer-Lemeshow tuvo una p &lt; 0.001 para ambos modelos, y el área bajo la curva ROC de 0.707 y de 0.694 para EuroSCORE aditivo y logístico.  Conclusión:  En el INCICh el 88.7% de los pacientes con cirugía valvular tuvieron riesgo intermedio a alto y EuroSCORE subestimó el riesgo de mortalidad.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Objective:  The EuroSCORE (European System for cardiac operative risk evaluation) stratifies cardiac risk surgery in easy and accessible manner; it was validated in North America with good results but in many countries of Latin America is used routinely without prior validation. Our objective was to validate the EuroSCORE in patients with cardiac valve surgery at the Instituto Nacional de Cardiología Ignacio Chávez (INCICh) in México.  Methods:  EuroSCORE additive and logistic models were used to predict mortality in adults undergoing cardiac valve surgery from march 2004 to march 2008. The goodness of fit test of Hosmer-Lemeshow was used to evaluate the calibration. The area under the ROC curve was calculated to determinate discrimination.  Results:  We included 1188 patients with ages of 51.3 ± 14.5 years, 52% women. There were significant differences in the prevalence of risk factors among the INCICh and the EuroSCORE populations. Total mortality was 9.68% versus 5% and 5.6% predicted by additive and logistic EuroSCORE. According to additive EuroSCORE the risk was low in 11.3%, intermediate in 52.9% and high in 35.9%; for these groups the mortality was .7%, 6.34% and 17.4% against those predicted of 2%, 3.9% and 7.64%. Hosmer-Lemeshow test had a P &lt; .001 for both models and the area under the ROC curve was .707 and .694 for additive and logistic EuroSCORE.  Conclusion:  In the INCICh 88.7% of patients with cardiac valve surgery had intermediate to high risk and EuroSCORE underestimated the risk of mortality.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[EuroSCORE]]></kwd>
<kwd lng="es"><![CDATA[Riesgo quirúrgico]]></kwd>
<kwd lng="es"><![CDATA[Cirugía valvular]]></kwd>
<kwd lng="es"><![CDATA[Validación externa]]></kwd>
<kwd lng="es"><![CDATA[México]]></kwd>
<kwd lng="en"><![CDATA[EuroSCORE]]></kwd>
<kwd lng="en"><![CDATA[Risk surgery]]></kwd>
<kwd lng="en"><![CDATA[Valve surgery]]></kwd>
<kwd lng="en"><![CDATA[External validation]]></kwd>
<kwd lng="en"><![CDATA[México]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[European system for cardiac operative risk evaluation (EuroSCORE)]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nashef]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
<name>
<surname><![CDATA[Roques]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Gauducheau]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<source><![CDATA[Eur J Cardiothorac Surg]]></source>
<year>1999</year>
<volume>16</volume>
<page-range>9&#8211;13</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Risk factors and outcome in European cardiac surgery: Analysis of the EuroSCORE multinational database of 19030 patients]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Roques]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Nashef]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
<name>
<surname><![CDATA[Michel]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<source><![CDATA[Eur J Cardiothorac Surg]]></source>
<year>1999</year>
<volume>15</volume>
<page-range>816&#8211;23</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Does EuroSCORE work in individual European countries?]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Roques]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Nashef]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
<name>
<surname><![CDATA[Michel]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<source><![CDATA[Eur J Cardiothorac Surg]]></source>
<year>2000</year>
<volume>18</volume>
<page-range>27&#8211;30</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Validation of european system for cardiac operative risk evaluation (EuroSCORE) in North American cardiac surgery]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nashef]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
<name>
<surname><![CDATA[Roques]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Hammill]]></surname>
<given-names><![CDATA[BG]]></given-names>
</name>
</person-group>
<source><![CDATA[Eur J Cardiothorac Surg]]></source>
<year>2002</year>
<volume>22</volume>
<page-range>101&#8211;5</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The logistic EuroSCORE predicts the hospital mortality of the thoracic aortic surgery in consecutive 327 japanese patients better than the additive EuroSCORE]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nishida]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Masuda]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Tomita]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
</person-group>
<source><![CDATA[Eur J Cardiothorac Surg]]></source>
<year>2006</year>
<volume>30</volume>
<page-range>578&#8211;82</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[A review of goodness of fit statistic for use in the development of logistic regression models]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lemeshow]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Hosemer]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<source><![CDATA[Am J Epidemiol]]></source>
<year>1982</year>
<volume>9</volume>
<page-range>2&#8211;106</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The meaning and use of the area under a receiver operating characteristic (ROC) curve]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hanley]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
<name>
<surname><![CDATA[McNeil]]></surname>
<given-names><![CDATA[BJ]]></given-names>
</name>
</person-group>
<source><![CDATA[Radiology]]></source>
<year>1982</year>
<volume>143</volume>
<page-range>29&#8211;36</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Measuring the accuracy of diagnostic systems]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Swets]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
</person-group>
<source><![CDATA[Science]]></source>
<year>1988</year>
<volume>240</volume>
<page-range>1285&#8211;93</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gaspar Hernández]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Radiología del Corazón]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Guadalajara]]></surname>
<given-names><![CDATA[JF]]></given-names>
</name>
</person-group>
<source><![CDATA[Cardiología]]></source>
<year>2006</year>
<edition>6</edition>
<page-range>242&#8211;3</page-range><publisher-loc><![CDATA[México ]]></publisher-loc>
<publisher-name><![CDATA[Méndez Editores]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Importance of risk stratification models in cardiac surgery]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kohl]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<source><![CDATA[Eur Heart J]]></source>
<year>2006</year>
<volume>27</volume>
<page-range>768&#8211;9</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[A method of uniform stratification of risk for evaluating the results in acquired adult heart disease]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Parsonnet]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Dean]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Bernstein]]></surname>
<given-names><![CDATA[AD]]></given-names>
</name>
</person-group>
<source><![CDATA[Circulation]]></source>
<year>1989</year>
<volume>79</volume>
<numero>^s1</numero>
<issue>^s1</issue>
<supplement>1</supplement>
<page-range>3&#8211;12</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[What do we mean by validating a prognostic model]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Altman]]></surname>
<given-names><![CDATA[DG]]></given-names>
</name>
<name>
<surname><![CDATA[Royston]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<source><![CDATA[Statist Med]]></source>
<year>2000</year>
<volume>19</volume>
<page-range>453&#8211;73</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Scores de gravedad y complejidad en cirugía cardíaca. Usos y limitaciones]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cortina]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
</person-group>
<source><![CDATA[Rev Esp Cardiol]]></source>
<year>2005</year>
<volume>58</volume>
<page-range>473&#8211;6</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Condiciones de aplicación de modelos de riesgo en cirugía cardiaca]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cortina]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
</person-group>
<source><![CDATA[Rev Esp Cardiol]]></source>
<year>2008</year>
<volume>61</volume>
<page-range>567&#8211;71</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="book">
<article-title xml:lang=""><![CDATA[Resampling, validating, describing and simplifying the model]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Harrel]]></surname>
<given-names><![CDATA[FE]]></given-names>
</name>
</person-group>
<source><![CDATA[Regression modeling strategies with applications to linear models. En: logistic regression and survival analysis]]></source>
<year>2001</year>
<page-range>91&#8211;4</page-range><publisher-loc><![CDATA[NewYork ]]></publisher-loc>
<publisher-name><![CDATA[Springer-Verlag, Inc]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Validation of EuroSCORE model in Australia]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yap]]></surname>
<given-names><![CDATA[CH]]></given-names>
</name>
<name>
<surname><![CDATA[Reid]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Yii]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[Eur J Cardiothoracic Surg]]></source>
<year>2006</year>
<volume>29</volume>
<page-range>441&#8211;6</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[El EuroSCORE como predictor de mortalidad precoz y de complicaciones mayores en la cirugía coronaria a corazón latiendo]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vázquez Roque]]></surname>
<given-names><![CDATA[FJ]]></given-names>
</name>
<name>
<surname><![CDATA[Pita]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Dueñas]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<source><![CDATA[Rev Arg Cir Cardiovasc]]></source>
<year>2005</year>
<volume>3</volume>
<page-range>146&#8211;51</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Multivessel revascularization on the beating heart by anterolateral left thoracotomy]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Guida]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Pecora]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Bacalao]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<source><![CDATA[Ann Thorac Surg]]></source>
<year>2006</year>
<volume>81</volume>
<page-range>2142&#8211;6</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Cirugía cardiaca en octogenarios]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Montero]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Murguía]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Genta]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<source><![CDATA[Rev Urug Cardiol]]></source>
<year>2007</year>
<volume>22</volume>
<page-range>6&#8211;13</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Cirugía de revascularización miocárdica sin circulación extracorpórea ¿qué ocurre con la conversión de emergencia?]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Montero]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Dabezies]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Cura]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<source><![CDATA[Rev Urug Cardiol]]></source>
<year>2007</year>
<volume>22</volume>
<page-range>15&#8211;20</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Validación prospectiva de siete sistemas locales e internacionales de evaluación de riesgo en cirugía cardiaca]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Borracci]]></surname>
<given-names><![CDATA[RA]]></given-names>
</name>
<name>
<surname><![CDATA[Rubio]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Tristán]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<source><![CDATA[Rev Arg Cardiol]]></source>
<year>2006</year>
<volume>74</volume>
<page-range>458&#8211;64</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Avaliação do Euroscore como preditor de mortalidade em cirugia de revascularização miocárdica no Instituto de Coração de Pernambuco]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moraes]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Duarte]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Cardoso]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<source><![CDATA[Braz J Cardiovasc Surg]]></source>
<year>2006</year>
<volume>21</volume>
<page-range>29&#8211;34</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Evaluación del riesgo en cirugía cardiaca (EuroSCORE) en un hospital privado del noreste de México]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gartz Tondorf]]></surname>
<given-names><![CDATA[GR]]></given-names>
</name>
<name>
<surname><![CDATA[Ramírez Rosales]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Treviño Frutos]]></surname>
<given-names><![CDATA[RJ]]></given-names>
</name>
</person-group>
<source><![CDATA[Rev Asoc Mex Med Crit Ter Int]]></source>
<year>2006</year>
<volume>20</volume>
<page-range>12&#8211;5</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Risk factors for early mortality after valve surgery in Europe in the 1990&#8217;s: Lessons from the EuroSCORE pilot program]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Roques]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Nashef]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
<name>
<surname><![CDATA[Michel]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<source><![CDATA[J Heart Valve Dis]]></source>
<year>2001</year>
<volume>10</volume>
<page-range>572&#8211;8</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[EuroSCORE performance in valve surgery: A meta-analysis]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Parolari]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Pesce]]></surname>
<given-names><![CDATA[LL]]></given-names>
</name>
<name>
<surname><![CDATA[Trezzi]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[Ann Thorac Surg]]></source>
<year>2010</year>
<volume>89</volume>
<page-range>787&#8211;93</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[EuroSCORE para predecir morbimortalidad en cirugía cardiaca valvular]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Careaga-Reyna]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez-Carballo]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Anza-Costabile]]></surname>
<given-names><![CDATA[LM]]></given-names>
</name>
</person-group>
<source><![CDATA[Cir Cir]]></source>
<year>2008</year>
<volume>76</volume>
<page-range>497&#8211;505</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Risk index for predicting in-hospital mortality for cardiac valve surgery]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hannan]]></surname>
<given-names><![CDATA[EL]]></given-names>
</name>
<name>
<surname><![CDATA[Wu]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Bennett]]></surname>
<given-names><![CDATA[EV]]></given-names>
</name>
</person-group>
<source><![CDATA[Ann Thorac Surg]]></source>
<year>2007</year>
<volume>83</volume>
<page-range>921&#8211;9</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Generic, simple risk stratification model for heart valve surgery]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ambler]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Omaz]]></surname>
<given-names><![CDATA[RZ]]></given-names>
</name>
<name>
<surname><![CDATA[Royston]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<source><![CDATA[Circulation]]></source>
<year>2005</year>
<volume>112</volume>
<page-range>224&#8211;31</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The Society of Thoracic Surgeons 2008 cardiac surgery risk models: Part 2-isolated valve surgery]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[O&#8217;Brien]]></surname>
<given-names><![CDATA[SM]]></given-names>
</name>
<name>
<surname><![CDATA[Shahian]]></surname>
<given-names><![CDATA[DM]]></given-names>
</name>
<name>
<surname><![CDATA[Filardo]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<source><![CDATA[Ann Thorac Surg]]></source>
<year>2009</year>
<volume>88</volume>
<page-range>23&#8211;42</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The Society of Tho-racic Surgeons 2008 cardiac surgery risk models; part 3-valve plus coronary artery bypass grafting surgery]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shahian]]></surname>
<given-names><![CDATA[DM]]></given-names>
</name>
<name>
<surname><![CDATA[O&#8217;Brien]]></surname>
<given-names><![CDATA[SM]]></given-names>
</name>
<name>
<surname><![CDATA[Filardo]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<source><![CDATA[Ann Thorac Surg]]></source>
<year>2009</year>
<volume>88</volume>
<page-range>43&#8211;62</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Multivariable prediction of in-hospital mortality associated with aortic and mitral valve surgery in northern New England]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nowicki]]></surname>
<given-names><![CDATA[ER]]></given-names>
</name>
<name>
<surname><![CDATA[Birkmeyer]]></surname>
<given-names><![CDATA[NJ]]></given-names>
</name>
<name>
<surname><![CDATA[Weintraub]]></surname>
<given-names><![CDATA[RW]]></given-names>
</name>
</person-group>
<source><![CDATA[Ann Thorac Surg]]></source>
<year>2004</year>
<volume>77</volume>
<page-range>1966&#8211;77</page-range></nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Determinants of operative mortality in valvular heart surgery]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rankin]]></surname>
<given-names><![CDATA[JS]]></given-names>
</name>
<name>
<surname><![CDATA[Hammill]]></surname>
<given-names><![CDATA[BG]]></given-names>
</name>
<name>
<surname><![CDATA[Ferguson]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
</person-group>
<source><![CDATA[J Thorac Cardiovasc Surg]]></source>
<year>2006</year>
<volume>131</volume>
<page-range>547&#8211;57</page-range></nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Comparision of short-term mortality risk factors for valve replacement versus coronary artery bypass graft surgery]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gardner]]></surname>
<given-names><![CDATA[SC]]></given-names>
</name>
<name>
<surname><![CDATA[Grunwald]]></surname>
<given-names><![CDATA[GK]]></given-names>
</name>
<name>
<surname><![CDATA[Rumsfeld]]></surname>
<given-names><![CDATA[JS]]></given-names>
</name>
</person-group>
<source><![CDATA[Ann Thorac Surg]]></source>
<year>2004</year>
<volume>77</volume>
<page-range>549&#8211;56</page-range></nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kuri]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Valvulopatías]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Barrón]]></surname>
<given-names><![CDATA[Vargas]]></given-names>
</name>
</person-group>
<source><![CDATA[Tratado de cardiología]]></source>
<year>2006</year>
<publisher-loc><![CDATA[Ciudad de México ]]></publisher-loc>
<publisher-name><![CDATA[Intersistemas editores]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Do we need separete risk stratification models for hospital mortality after heart valve surgery]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Van Gameren]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Kappetein]]></surname>
<given-names><![CDATA[AP]]></given-names>
</name>
<name>
<surname><![CDATA[Steyerberg]]></surname>
<given-names><![CDATA[EW]]></given-names>
</name>
</person-group>
<source><![CDATA[Ann Thorac Surg]]></source>
<year>2008</year>
<volume>85</volume>
<page-range>921&#8211;30</page-range></nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[What is the future of mortality prediction models in heart valve surgery?]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nowicki]]></surname>
<given-names><![CDATA[ER]]></given-names>
</name>
</person-group>
<source><![CDATA[Ann Thorac Surg]]></source>
<year>2005</year>
<volume>80</volume>
<page-range>396&#8211;8</page-range></nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Reducción auricular izquierda. Un nuevo concepto en la cirugía para la fibrilación auricular crónica]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[García-Villarreal]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Guoveia]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<source><![CDATA[Rev Esp Cardiol]]></source>
<year>2002</year>
<volume>55</volume>
<page-range>499&#8211;504</page-range></nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Programa de estancia corta en cirugía cardiaca. Análisis de morbimortalidad en 533 casos en 5 años]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rodríguez-Chávez]]></surname>
<given-names><![CDATA[LL]]></given-names>
</name>
<name>
<surname><![CDATA[Kuri]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Avila]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
</person-group>
<source><![CDATA[Arch Card Mex]]></source>
<year>2010</year>
<volume>80</volume>
<page-range>100&#8211;7</page-range></nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="">
<source><![CDATA[EuroSCORE]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The first Latin-American risk stratification system for cardiac surgery: Can be used as a graphic pocket-card score?]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Carosella]]></surname>
<given-names><![CDATA[VC]]></given-names>
</name>
<name>
<surname><![CDATA[Navia]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<name>
<surname><![CDATA[Sharif]]></surname>
<given-names><![CDATA[AR]]></given-names>
</name>
</person-group>
<source><![CDATA[Interac CardioVasc Thorac Surg]]></source>
<year>2009</year>
<volume>9</volume>
<page-range>203&#8211;8</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
