<?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>1812-9528</journal-id>
<journal-title><![CDATA[Memorias del Instituto de Investigaciones en Ciencias de la Salud]]></journal-title>
<abbrev-journal-title><![CDATA[Mem. Inst. Investig. Cienc. Salud]]></abbrev-journal-title>
<issn>1812-9528</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Investigaciones en Ciencias de la Salud]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1812-95282019000300020</article-id>
<article-id pub-id-type="doi">10.18004/mem.iics/1812-9528/2019.017.03.20-027</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Asociación de la dilatación auricular izquierda con los trastornos del sistema de conducción en pacientes con hipertensión arterial sistémica]]></article-title>
<article-title xml:lang="en"><![CDATA[Association of left atrial dilatation with conduction system disorders in patients with systemic arterial hypertension]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Miño]]></surname>
<given-names><![CDATA[Luis Marcelo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Centurión]]></surname>
<given-names><![CDATA[Osmar Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torales]]></surname>
<given-names><![CDATA[Judith M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[Laura B.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cáceres]]></surname>
<given-names><![CDATA[Cristina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Paniagua]]></surname>
<given-names><![CDATA[María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lovera]]></surname>
<given-names><![CDATA[Oscar A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[Jorge E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Asunción Hospital de Clínicas División de Medicina Cardiovascular]]></institution>
<addr-line><![CDATA[San Lorenzo ]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Sanatorio Metropolitano Departamento de Investigación en Ciencias de la Salud ]]></institution>
<addr-line><![CDATA[Fernando de la Mora ]]></addr-line>
<country>Paraguay</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<volume>17</volume>
<numero>3</numero>
<fpage>20</fpage>
<lpage>27</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_arttext&amp;pid=S1812-95282019000300020&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_abstract&amp;pid=S1812-95282019000300020&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_pdf&amp;pid=S1812-95282019000300020&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[RESUMEN La dilatación de la aurícula izquierda (AI) se considera un predictor ecocardiográfico para la remodelación auricular y la fibrilación auricular. Por ende, hemos investigado la correlación existente entre la dilatación de la AI con las arritmias cardíacas y los trastornos del sistema de conducción en pacientes con hipertensión arterial (HTA). En este estudio observacional y prospectivo hemos investigado las variaciones electrocardiográficas, mediciones ecocardiográficas y Holter ECG de 24 hs en pacientes hipertensos y no hipertensos ambulatoria y hospitalizados que acuden a un hospital terciario entre marzo a septiembre del 2018. Se estudiaron 104 pacientes, 65 hipertensos conocidos y 39 no hipertensos como grupo control. El diámetro promedio de la AI fue significativamente mayor (p=0,03) en pacientes hipertensos que los no hipertensos (37±8 mm vs. 34±5 mm). Se encontró una asociación significativa entre hipertensión y la aurícula izquierda dilatada (&gt;40 mm) (p= 0,026 OR: 3,25 IC95%: 1,01-11,02). La dilatación de la AI tuvo una especificidad de 73% y un valor predictivo negativo de 98% relacionado con la presencia de trastornos del sistema de conducción y arritmias cardiacas en pacientes con HTA. Se encontró asociación entre la hipertensión arterial y la dilatación de la aurícula izquierda. La dilatación de la aurícula izquierda tiene una elevada especificidad y un alto valor predictivo negativo en la detección de la presencia de prolongación del intervalo QT, ensanchamiento del complejo QRS, dispersión de la onda P, y trastornos del sistema de conducción y arritmias cardiacas en pacientes con hipertensión arterial.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Dilation of the left atrium (LA) is considered an echocardiographic predictor for atrial remodeling and atrial fibrillation. Therefore, we have investigated the correlation between dilatation of the LA with cardiac arrhythmias and conduction system disorders in patients with systemic arterial hypertension. In this observational and prospective study we have investigated electrocardiographic variations, echocardiographic measurements and Holter ECG of 24 hours in hypertensive patients who attend a tertiary hospital from March 2018 to September 2018 as outpatients and inpatients. One hundred four patients were studied, 65 known to be hypertensive and 39 non-hypertensive subjects as control group. The diameter of the LA &#8203;&#8203;had a mean value of 37±8 in hypertensive patients, while in non-hypertensive patients was 34±5 &#8203;&#8203;(p = 0.03). A significant association was found between hypertension and increased diameter of the LA (p = 0.04 OR: 2.6 CI 0.88-7.7). Dilatation of the LA had a specificity of 73% and a negative predictive value of 98% related to the presence of conduction system disorders and cardiac arrhythmias in patients with hypertension. A significant relationship between arterial hypertension and dilatation of the left atrium was observed. The dilatation of the left atrium has a high specificity and a high negative predictive value in the detection of the presence of prolongation of the QT interval, widening of the QRS complex, dispersion of the P wave, and disorders of the conduction system and cardiac arrhythmias in patients with hypertension.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Dilatación de la aurícula izquierda]]></kwd>
<kwd lng="es"><![CDATA[hipertensión arterial]]></kwd>
<kwd lng="es"><![CDATA[arritmias cardiacas]]></kwd>
<kwd lng="es"><![CDATA[trastornos del sistema de conducción]]></kwd>
<kwd lng="en"><![CDATA[Dilatation of the left atrium]]></kwd>
<kwd lng="en"><![CDATA[arterial hypertension]]></kwd>
<kwd lng="en"><![CDATA[cardiac arrhythmias]]></kwd>
<kwd lng="en"><![CDATA[conduction system disorders]]></kwd>
</kwd-group>
</article-meta>
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