<?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>2078-7170</journal-id>
<journal-title><![CDATA[CorSalud]]></journal-title>
<abbrev-journal-title><![CDATA[CorSalud]]></abbrev-journal-title>
<issn>2078-7170</issn>
<publisher>
<publisher-name><![CDATA[Cardiocentro Ernesto Che Guevara]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2078-71702021000100009</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Deformación miocárdica (strain) circunferencial global en pacientes con cardiopatía isquémica]]></article-title>
<article-title xml:lang="en"><![CDATA[Global circumferential strain in patients with ischemic heart disease]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Román-Fernández]]></surname>
<given-names><![CDATA[Idalys]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Barreda]]></surname>
<given-names><![CDATA[Aylen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Naranjo-Domínguez]]></surname>
<given-names><![CDATA[Adrián]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Navarro]]></surname>
<given-names><![CDATA[Angel Y.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alfonso-Montero]]></surname>
<given-names><![CDATA[Oscar A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro de Investigaciones Médico Quirúrgicas (CIMEQ) Departamento de Ecocardiografía Unidad de Imagen Cardiovascular]]></institution>
<addr-line><![CDATA[ La Habana]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto de Cardiología y Cirugía Cardiovascular Servicio de Cardiología ]]></institution>
<addr-line><![CDATA[ La Habana]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2021</year>
</pub-date>
<volume>13</volume>
<numero>1</numero>
<fpage>9</fpage>
<lpage>18</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2078-71702021000100009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2078-71702021000100009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2078-71702021000100009&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  Las enfermedades cardiovasculares constituyen la primera causa de muerte en Cuba y la mayoría de los países desarrollados. La ecocardiografía con rastreo de marcas o speckle-tracking bidimensional (ST-2D) es una técnica reciente en la evaluación de la función cardíaca.  Objetivo:  Determinar la relación entre la deformación miocárdica (strain) circunferencial (GCS) medida por ST-2D y el estado de la circulación coronaria, en pacientes con cardiopatía isquémica.  Método:  Se realizó un estudio analítico, transversal, con 55 pacientes con indicación de coronariografía a los que se les realizó ecocardiograma para medir la GCS mediante ST-2D, en el Centro de Investigaciones Médico Quirúrgicas (CIMEQ, La Habana, Cuba), durante un año. Se crearon dos grupos: con enfermedad coronaria significativa (ECS=32) y no significativa (ECNS=23). Se utilizó SSPS para análisis de los resultados.  Resultados:  La edad promedio fue mayor en ECS (55,6 ±9,3 vs. 61,8±8,8; p=0,014). Predominaron los hombres con ECS (47,3%), los hipertensos (ECS=90,6% y ENCS=65,2%; p=0,02) y los fumadores (ECS=59,4% y ENCS=17,4%; p=0,002). El diagnóstico más frecuente fue la angina crónica estable (87%). En ECS predominó la enfermedad de tres vasos (75%). La GCS fue menor en ECS [(-19,5±3.8 vs. -25,2±5,7; p=0,033); área bajo la curva = 0,208]. No hubo diferencias en GCS, según el número de vasos significativamente enfermos.  Conclusiones:  Los resultados encontrados no justifican el empleo de la GCS por ST-2D para discriminar la presencia o no de ECS.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT   Introduction:  Cardiovascular diseases are the top cause of death in Cuba as well as in most developed countries. Two-dimensional speckle-tracking (2D-ST) echocardiography is a recent technique in the evaluation of cardiac function.   Objective:  To determine the relationship between global circumferential strain (GCS) measured through 2D-ST echocardiography and the state of coronary circulation in patients with ischemic heart disease.   Method:  An analytical, cross-sectional study was carried out on 55 patients with indication of coronary angiography, who underwent echocardiography to measure the GCS through 2D-ST at the Centro de Investigaciones Medico Quirúrgicas (CIMEQ, Havana, Cuba), during one year. Two groups were created: with significant coronary artery disease (SCAD = 32) and non-significant coronary artery disease (NSCAD = 23). The statistical package for the social sciences (SPSS) was used to analyze the results.   Results:  Mean age was higher in the SCAD group (55.6 ± 9.3 vs. 61.8± 8.8, p=0.014). Men with SCAD (47.3%), patients with high blood pressure (SCAD = 90.6% and NSCAD = 65.2%, p = 0.02) and smokers (SCAD = 59.4% and NSCAD = 17.4%, p = 0.002) predominated. The most frequent diagnosis was chronic stable angina (87%). Three-vessel disease predominated in the SCAD group (75%). The GCS was lower in the SCAD group [(-19.5.0 ± 3.8 vs. -25.2 ± 5.7, p = 0.033); area under the curve = 0.208]. There were no differences in GCS according to the number of significantly diseased vessels.   Conclusions:  The results found do not justify the use of GCS through 2D-ST echocardiography to discriminate the presence or nor of SCAD.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Cardiopatía isquémica]]></kwd>
<kwd lng="es"><![CDATA[Isquemia miocárdica]]></kwd>
<kwd lng="es"><![CDATA[Ecocardiografía con speckle-tracking bidimensional]]></kwd>
<kwd lng="es"><![CDATA[Deformación miocárdica circunferencial]]></kwd>
<kwd lng="es"><![CDATA[Función cardíaca]]></kwd>
<kwd lng="en"><![CDATA[Ischemic heart disease]]></kwd>
<kwd lng="en"><![CDATA[Myocardial ischemia]]></kwd>
<kwd lng="en"><![CDATA[Bidimensional speckle-tracking echocardiography]]></kwd>
<kwd lng="en"><![CDATA[Global circumferential strain]]></kwd>
<kwd lng="en"><![CDATA[Cardiac performance]]></kwd>
</kwd-group>
</article-meta>
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