<?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>2954-3835</journal-id>
<journal-title><![CDATA[Cardiovascular and metabolic science]]></journal-title>
<abbrev-journal-title><![CDATA[Cardiovasc. metab. sci]]></abbrev-journal-title>
<issn>2954-3835</issn>
<publisher>
<publisher-name><![CDATA[Asociación Nacional de Cardiólogos de México A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2954-38352019000100006</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Clinical and echocardiographic variables associated to left atrium enlargement. Differences between genders]]></article-title>
<article-title xml:lang="es"><![CDATA[Variables clínicas y ecocardiográficas asociadas con dilatación de la aurícula izquierda. Diferencias entre géneros]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Lezama]]></surname>
<given-names><![CDATA[Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Domínguez-Carrillo]]></surname>
<given-names><![CDATA[Luis Gerardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Harrison-Gómez]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez-Lagundas]]></surname>
<given-names><![CDATA[Mariela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Ángeles León Departamento de Ecocardiografía ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Guanajuato Escuela de Medicina ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Guanajuato Escuela de Medicina ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Anáhuac México Norte Escuela de Medicina ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2019</year>
</pub-date>
<volume>30</volume>
<numero>1</numero>
<fpage>6</fpage>
<lpage>13</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2954-38352019000100006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2954-38352019000100006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2954-38352019000100006&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  Left atrium (LA) enlargement is a predictor of cardiovascular events.  Objective:  To inform clinical an echocardiographic findings related to LA enlargement in patients with normal left ventricle (LV) systolic function without valvulopathy or cardiomyopathy, and gender differences.  Methods:  Forty patients with LV ejection fraction &#8805; 50% were evaluated with a complete transthoracic echocardiogram.  Results:  In the sample, 55% were female (n = 22) and 45% men (n = 18); age of 68.5 ± 36.7 years with range of 35 to 87; only hypertension was a significant risk factor. LA volume in female was 56.8 ± 36.06 mL and 73.4 ± 94.04 mL in male; the LA indexed volume was 33.31 ± 14.84 mL/m2 BSA in women and 39.22 ± 56.56 mL/m2 BSA in men (p = 0.05). LV concentric remodeling was found in 52.5% (n = 21) and it was the most frequent structural change; on the other hand concentric hypertrophy was more prevalent in women (p = 0.05) and the diastolic diameter of the LV showed significant difference between genders (p = 0.05). No other significant differences between genders were found in any other parameter.  Conclusions:  Systemic hypertension was the most prevalent risk factor, being more frequent in men, as well as greater extent of LA volume and diastolic diameter of LV; concentric remodeling was very frequent in both genders and LV end diastolic pressures were normal in both groups.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  La dilatación de la aurícula izquierda (AI) es un predictor de eventos cardiovasculares.  Objetivo:  Informar los hallazgos clínicos y ecocardiográficos asociados con dilatación de AI en pacientes con función sistólica del VI normal, en ausencia de miocardiopatía y valvulopatía, y las diferencias entre géneros.  Métodos:  Cuarenta pacientes con fracción de expulsión del VI &#8805; 50% se evaluaron con ecocardiograma transtorácico completo.  Resultados:  En la muestra, 55% fueron mujeres (n = 22) y 45% hombres (n = 18); la edad de 68.5 ± 36.7 años con rango de 35 a 87; como factor clínico de riesgo, sólo la hipertensión fue significativa. El volumen de AI en mujeres fue 56.8 ± 36.06 mL y 73.4 ± 94.04 mL en hombres; el volumen indexado de AI fue 33.31 ± 14.84 mL/m2SC en mujeres y 39.22 ± 56.56 mL/m2SC en hombres (p = 0.05). La remodelación concéntrica del VI se encontró en el 52.5% (n = 21) de los casos y fue el cambio estructural más frecuente; por otro lado la hipertrofia concéntrica fue más prevalente en mujeres (p = 0.05) y el diámetro diastólico del VI mostró diferencia significativa entre géneros (p = 0.05). No se encontraron diferencias significativas entre géneros en ninguno de los otros parámetros.  Conclusiones:  En la muestra estudiada la hipertensión arterial fue el factor de riesgo más prevalente, siendo más frecuente en hombres, al igual que mayor grado de dilatación auricular y del diámetro diastólico del VI; la remodelación concéntrica resultó muy frecuente en ambos géneros y las presiones de llenado fueron normales en ambos grupos.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Left atrial enlargement]]></kwd>
<kwd lng="en"><![CDATA[echocardiography]]></kwd>
<kwd lng="es"><![CDATA[Crecimiento auricular izquierdo]]></kwd>
<kwd lng="es"><![CDATA[ecocardiografía]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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