<?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>S1405-99402022000400446</article-id>
<article-id pub-id-type="doi">10.24875/acm.21000227</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Índice de eficiencia miocárdica en cardiópatas posterior a un programa de rehabilitación cardiaca]]></article-title>
<article-title xml:lang="en"><![CDATA[Myocardial efficiency index in patients with heart disease after a cardiac rehabilitation program]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Citalán-Jiménez]]></surname>
<given-names><![CDATA[José A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lara-Vargas]]></surname>
<given-names><![CDATA[Jorge A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pineda-Juárez]]></surname>
<given-names><![CDATA[Juan A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Salgado-Solorio]]></surname>
<given-names><![CDATA[María C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reza-Orozco]]></surname>
<given-names><![CDATA[Marco A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arteaga-Martínez]]></surname>
<given-names><![CDATA[Rodolfo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vergara-Guzmán]]></surname>
<given-names><![CDATA[Jesica]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Contreras-Juvenal]]></surname>
<given-names><![CDATA[Rodrigo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Galván-López]]></surname>
<given-names><![CDATA[María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Leyva-Valádez]]></surname>
<given-names><![CDATA[Eduardo A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado Centro Médico Nacional 20 de Noviembre División de Servicios Modulares]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad La Salle Facultad de Medicina ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado Centro Médico Nacional 20 de Noviembre Departamento de Investigación Clínica]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Medicina ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<volume>92</volume>
<numero>4</numero>
<fpage>446</fpage>
<lpage>453</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-99402022000400446&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-99402022000400446&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-99402022000400446&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo: El índice de eficiencia miocárdica (IEM) correlaciona el consumo miocárdico de oxígeno (MVO2) con el consumo máximo de oxígeno, el cual proporciona información sobre la eficiencia cardiovascular (EfCV). En deportistas, el IEM mejora posterior a un microciclo de entrenamiento, en el paciente con enfermedad cardiovascular sometido a un programa de rehabilitación cardiaca y prevención secundaria PRHCyPS, el comportamiento del IEM podría resultar un estimador relacionado con mejoría derivado de un periodo de entrenamiento. El objetivo del estudio fue determinar el comportamiento del IEM posterior a un PRCyPS en pacientes con cardiopatías y riesgo cardiovascular alto (RCVA).  Métodos: Estudio de cohorte ambilectivo, descriptivo, analítico, no aleatorizado. Se seleccionaron pacientes con cardiopatías de etiología mixta con RCVA ingresados a un PRCyPS durante 4-6 semanas. A todos los pacientes se les realizó una prueba de ejercicio máximo en banda antes y después del PRCyPS. Se determinaron umbrales de consumo de oxígeno (VO2) pico, equivalentes metabólicos-carga, doble producto e IEM. Se estableció un punto de corte del IEM mediante una curva ROC con un valor de 7.37 con un área bajo la curva de 0.68 (IC 95%: 0.61-0.76; p &lt; 0.001), sensibilidad 0.60 y 1-especificidad de 0.35.  Resultados: Se incluyeron 193 pacientes con una media de edad de 62.3 años, en su mayoría del sexo masculino (66.2%). Se observaron porcentajes de cambio en el IEM &#8211;27.1% (p &lt; 0.001), MET 43.1% (p &lt; 0.001), doble producto 5.7% (p &lt; 0.01) y MVO2: 8.3% (p &lt; 0.01) al término del PRCyPS.  Conclusiones: Se observó un cambio significativo en el IEM posterior a un PRCyPS, lo cual se asoció a una mejoría en la EfCV, sugiriendo que este pueda considerarse como un parámetro clínico que evaluar en los programas de rehabilitación cardiaca.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective: The myocardial efficiency index (MEI) correlates the Myocardial Oxygen Consumption (MVO2) with the Maximum Oxygen Consumption (VO2max), this index provides information about the cardiovascular efficiency (CVEf). In athletes, the MEI improves after a micro-cycle training, however in patients with cardiovascular disease undergoing Cardiac Rehabilitation Program (CRP), IEM behavior could be a good estimator related to the improvement training period. The objective of this study was to determine the myocardial efficiency index behavior in patients with heart disease and high cardiovascular risk (HCVR) after a CRP.  Methods: Ambilective, descriptive, analytical, non-randomized cohort study was conducted. Patients with heart disease of mixed etiology and HCVR admitted to a CRP for 4-6 weeks were selected. All patients performed a maximal exercise test in band before and after the CPR. Thresholds of VO2 peak, METs-load, Double product (DP) and MEI were determined. A cut-off point for the MEI was established using a ROC curve with a value of 7.37, area under the curve: 0.68 (95% CI 0.61 - 0.76, p &lt; 0.001), sensitivity 0.60 and 1-specificity 0.35.  Results: 193 patients with a mean age of 62.3 years were included, predominantly men (66.2%). Percentages changes in the MEI-27.1% (p &lt; 0.001),METs-43.1% (p &lt; 0.001),DP 5.7% (p &lt; 0.01), and MVO2: 8.3% (p &lt; 0.01) were observed at the end of CRP.  Conclusions: Significant change in the MEI were observed after CRP associated to CVEf improvement, suggesting that this parameter could be considered as a good clinical tool in the CRP care programs.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Índice de eficiencia miocárdica]]></kwd>
<kwd lng="es"><![CDATA[Consumo miocárdico de oxígeno]]></kwd>
<kwd lng="es"><![CDATA[Consumo pico de oxígeno]]></kwd>
<kwd lng="es"><![CDATA[Programa de rehabilitación cardiaca y prevención secundaria]]></kwd>
<kwd lng="es"><![CDATA[Doble producto]]></kwd>
<kwd lng="en"><![CDATA[Myocardial efficiency index]]></kwd>
<kwd lng="en"><![CDATA[Myocardial oxygen consumption]]></kwd>
<kwd lng="en"><![CDATA[Peak oxygen consumption]]></kwd>
<kwd lng="en"><![CDATA[Cardiac rehabilitation program]]></kwd>
<kwd lng="en"><![CDATA[Cardiac rehabilitation program and secondary prevention]]></kwd>
<kwd lng="en"><![CDATA[Double product]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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<name>
<surname><![CDATA[Tesch]]></surname>
<given-names><![CDATA[PA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Exercise performance and b-blockade]]></article-title>
<source><![CDATA[Sports Med]]></source>
<year>1985</year>
<volume>2</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>389-412</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
