<?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>S1405-99402024000300286</article-id>
<article-id pub-id-type="doi">10.24875/acm.23000084</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Correlación de la función contráctil del ventrículo izquierdo con la presencia de circulación coronaria colateral en infarto agudo de miocardio no reperfundido]]></article-title>
<article-title xml:lang="en"><![CDATA[Correlation of left ventricular contractile function with the presence of collateral coronary circulation in non-reperfused acute myocardial infarction]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Campos-Franco]]></surname>
<given-names><![CDATA[Diego R.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Pacheco]]></surname>
<given-names><![CDATA[Héctor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arias-Mendoza]]></surname>
<given-names><![CDATA[Alexandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Cardiología Ignacio Chávez Unidad de Cuidados Coronarios ]]></institution>
<addr-line><![CDATA[ Ciudad de México]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2024</year>
</pub-date>
<volume>94</volume>
<numero>3</numero>
<fpage>286</fpage>
<lpage>291</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-99402024000300286&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-99402024000300286&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-99402024000300286&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo: Evaluar la asociación entre la circulación coronaria colateral y la función contráctil ventricular en pacientes con infarto agudo de miocardio no reperfundido.  Método: Estudio observacional descriptivo y retrospectivo en pacientes con infarto agudo de miocardio con elevación del segmento ST (IAMCEST) en un centro cardiovascular de referencia, de enero de 2006 a diciembre de 2022. Se analizaron las coronariografías y los ecocardiogramas para evaluar la circulación coronaria colateral y la función ventricular, respectivamente. Se dividieron en grupos de acuerdo con la presencia de circulación colateral. Se compararon ambos grupos y se analizó la mortalidad durante la hospitalización del evento índice.  Resultados: De 14,985 pacientes con síndrome coronario agudo, 8134 (54.3%) presentaron IAMCEST. Se excluyeron 12,880, quedando así 2105 pacientes con IAMCEST no reperfundidos y sometidos a coronariografía, revelando lesiones. Hubo más pacientes sin circulación colateral: 1547 (73.5%) vs. 558 (26.5%) (p = 0.025). Los pacientes sin circulación colateral presentaron una mayor fracción de eyección ventricular izquierda (mediana del 47% vs. 42%; p &lt; 0.001). La mortalidad en los pacientes con circulación colateral fue mayor que en los pacientes sin ella (11.6% vs. 9.8%; p = 0.225), pero no se alcanzó significancia estadística.  Conclusiones: Los pacientes con IAMCEST no reperfundidos no presentaron protección por la circulación colateral al evaluar la función sistólica ventricular izquierda. No se encontró diferencia en la mortalidad en comparación con la población sin desarrollo de circulación colateral.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective: To assess the association between coronary collateral circulation and ventricular contractile function in patients with non-reperfused acute myocardial infarction.  Method: A retrospective and descriptive clinical study was conducted on patients with ST-elevation myocardial infarction (STEMI) at a reference cardiovascular center, from January 2006 to December 2022. Coronary angiographies and echocardiograms were reviewed to evaluate coronary collateral circulation and ventricular function, respectively. Patients were divided into groups based on the presence of collateral circulation. Both groups were compared and mortality during the index hospitalization was analyzed.  Results: Out of a total of 14,985 patients with acute coronary syndrome, 8134 (54.3%) had the diagnosis of STEMI. We excluded 12,880, leaving a total of 2105 non-reperfused STEMI patients who underwent coronary angiography, revealing lesions. There were more patients without collateral circulation: 1547 (73.5%) vs. 558 (26.5%) (p = 0.025). Patients without collateral circulation had a higher left ventricular ejection fraction (median of 47% vs. 42%; p &lt; 0.001). Mortality in patients with collateral circulation was higher compared to those without it (11.6% vs. 9.8%; p = 0.225), but statistical significance was not reached.  Conclusions: Non-reperfused STEMI patients did not show protection from collateral circulation when assessing left ventricular systolic function. We did not find a difference in mortality compared to the population without development of collateral circulation.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Infarto agudo de miocardio]]></kwd>
<kwd lng="es"><![CDATA[Circulación coronaria colateral]]></kwd>
<kwd lng="es"><![CDATA[Función ventricular]]></kwd>
<kwd lng="es"><![CDATA[Enfermedad cardiovascular]]></kwd>
<kwd lng="es"><![CDATA[Eventos cardiovasculares adversos mayores]]></kwd>
<kwd lng="en"><![CDATA[Acute myocardial infarction]]></kwd>
<kwd lng="en"><![CDATA[Coronary collateral circulation]]></kwd>
<kwd lng="en"><![CDATA[Ventricular function]]></kwd>
<kwd lng="en"><![CDATA[Cardiovascular disease]]></kwd>
<kwd lng="en"><![CDATA[Major adverse cardiovascular events]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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