<?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>1608-8921</journal-id>
<journal-title><![CDATA[Gaceta Médica Espirituana]]></journal-title>
<abbrev-journal-title><![CDATA[Gac Méd Espirit]]></abbrev-journal-title>
<issn>1608-8921</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Ciencias Médicas de Sancti Spíritus]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1608-89212018000300078</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Dispersión del intervalo QT corregido como predictor de arritmias ventriculares en el infarto agudo del miocardio]]></article-title>
<article-title xml:lang="en"><![CDATA[Dispersion of the corrected QT interval as a predictor of ventricular arrhythmias in acute myocardial infarction]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodriguez Jiménez]]></surname>
<given-names><![CDATA[Ailed Elena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cruz Inerarity]]></surname>
<given-names><![CDATA[Hugo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Negrín Valdes]]></surname>
<given-names><![CDATA[Tessa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodriguez]]></surname>
<given-names><![CDATA[Raikel Fardales]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castellano Gallo]]></surname>
<given-names><![CDATA[Luis Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Provincial General Camilo Cienfuegos de Sancti Spíritus  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<volume>20</volume>
<numero>3</numero>
<fpage>78</fpage>
<lpage>91</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1608-89212018000300078&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1608-89212018000300078&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1608-89212018000300078&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Fundamento:  La dispersión del intervalo QT es un marcador electrocardiográfico que puede resultar útil en la estratificación de riesgo arrítmicos en pacientes con infarto agudo del miocardio.  Objetivo:  Describir la influencia de la dispersión del intervalo QT corregido en asociación a otros factores de riesgo como predictores de arritmias ventriculares en el infarto agudo del miocardio con elevación del segmento ST.  Metodología:  Se estudiaron de menera prospectiva 209 pacientes que ingresaron de forma consecutiva con diagnóstico de infarto agudo de miocardio con elevación del segmento ST de enero de 2013 a junio de 2014 en el Hospital Provincial General Camilo Cienfuegos de Sancti Spíritus. Se recogieron datos clínicos, de laboratorio electrocardiográficos y ecocardiográficos; se determinó la implicación pronóstica de la dispersión del intervalo QT corregido en la aparición de arritmias ventriculares a través de la regresión logística binaria y las curvas de operador-receptor.  Resultados:  Las arritmias ventriculares se presentaron en 39 (18.7 %) pacientes. La dispersión del QT corregido mostró una adecuada capacidad de discriminación en la predicción de cualquier episodio arrítmico ventricular grave (c=0.768, p=0.0001). En el análisis multivariado la dispersión del QT resultó un predictor independiente de arritmias ventriculares (OR= 7.075; IC 95%= 1.6- 32.9; p=0.009).  Conclusiones:  La probabilidad de presentar arritmias ventriculares durante el infarto agudo del miocardio es mayor cuando se incrementan la dispersión del intervalo QT, por lo que se sugiere debe ser una variable a evaluar en la estratificación pronostica del infarto agudo del miocardio.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Background:  Dispersion of the QT interval is an electrocardiographic marker that can be useful in the stratification of arrhythmic risk in patients with acute myocardial infarction.  Objective:  To describe the influence of corrected QT interval dispersion in association with other risk factors as predictors of ventricular arrhythmias in acute myocardial infarction with ST-segment elevation.  Methodology:  209 patients who entered consecutively with diagnosis of acute myocardial infarction with elevation of the ST segment from January 2013 to June 2014 at Camilo Cienfuegos General Provincial Hospital of Sancti Spíritus were studied prospectively. Clinical, electrocardiographic and echocardiographic laboratory data were collected; the prognostic implication of the corrected QT interval dispersion in the appearance of ventricular arrhythmias through binary logistic regression and operator-receiver curves was determined.  Results:  Ventricular arrhythmias occurred in 39 (18.7%) patients. The dispersion of the corrected QT showed an adequate discrimination capacity in the prediction of any serious ventricular arrhythmic episode (c = 0.768, p = 0.0001). In the multivariate analysis, QT dispersion was an independent predictor of ventricular arrhythmias (OR = 7.075, 95% CI = 1.6-32.9, p = 0.009).  Conclusions:  The probability of presenting ventricular arrhythmias during acute myocardial infarction is greater when the dispersion of the QT interval is increased, so it is suggested that it should be a variable to be evaluated in the prognostic stratification of acute myocardial infarction.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Síndrome de QT prolongado]]></kwd>
<kwd lng="es"><![CDATA[taquicardia ventricular]]></kwd>
<kwd lng="es"><![CDATA[arritmias cardíacas]]></kwd>
<kwd lng="es"><![CDATA[fibrilación ventricular]]></kwd>
<kwd lng="es"><![CDATA[infarto del miocardio]]></kwd>
<kwd lng="es"><![CDATA[dispersión del intervalo QT, estratificación pronóstica]]></kwd>
<kwd lng="en"><![CDATA[Long QT syndrome]]></kwd>
<kwd lng="en"><![CDATA[tachycardia ventricular]]></kwd>
<kwd lng="en"><![CDATA[arrhythmias cardiac]]></kwd>
<kwd lng="en"><![CDATA[ventricular fibrillation]]></kwd>
<kwd lng="en"><![CDATA[myocardial infarction]]></kwd>
<kwd lng="en"><![CDATA[QT interval dispersion]]></kwd>
<kwd lng="en"><![CDATA[prognostic stratification]]></kwd>
</kwd-group>
</article-meta>
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