<?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>0120-5633</journal-id>
<journal-title><![CDATA[Revista Colombiana de Cardiología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Colomb. Cardiol.]]></abbrev-journal-title>
<issn>0120-5633</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Colombiana de Cardiologia. Oficina de Publicaciones]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-56332022000200145</article-id>
<article-id pub-id-type="doi">10.24875/rccar.m22000135</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Valoración del strain auricular izquierdo en competidores de ultramaratón ¿Se extiende la fatiga cardíaca a todas las estructuras miocárdicas?]]></article-title>
<article-title xml:lang="en"><![CDATA[Evaluation of the left atrium strain in ultramarathon competitors. Does cardiac fatigue extend to all myocardial structures?]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Picco]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Dávila]]></surname>
<given-names><![CDATA[Emanuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Wolff]]></surname>
<given-names><![CDATA[Sebastián]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Wolff]]></surname>
<given-names><![CDATA[David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Cardiología y Deportes Wolff Instituto de Cardiología y Deportes Wolff ]]></institution>
<addr-line><![CDATA[Mendoza ]]></addr-line>
<country>Argentina</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<volume>29</volume>
<numero>2</numero>
<fpage>145</fpage>
<lpage>149</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-56332022000200145&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-56332022000200145&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-56332022000200145&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: La aurícula izquierda cumple varias funciones durante el ciclo cardíaco (reservorio, conducción y contracción), que podrían verse afectadas por la remodelación fisiológica al igual que por el estrés inducido por el ejercicio intenso (carreras de ultra-trail de montaña).  Objetivo: Valorar si las adaptaciones fisiológicas de la aurícula izquierda al deporte (aumento del volumen auricular), así como el estrés inducido por las competiciones de ultramaratón, influyen en la función auricular izquierda estimada por strain auricular realizado mediante speckle tracking.  Método: Fueron evaluados 28 participantes antes y después del ejercicio (en el transcurso de 1 hora posterior al esfuerzo de carreras de ultra-trail) utilizando ecocardiografía Doppler y nuevas técnicas ecocardiográficas (posprocesamiento). Se excluyeron cinco deportistas: dos por regular ventana ecocardiográfica que no permitía visualizar correctamente el borde endomiocárdico y tres por no finalizar la carrera. Se realizaron estadística descriptiva convencional, análisis comparativo para datos pareados mediante test t de Student y correlación de Pearson para valorar factores que influyeran en las alteraciones detectadas.  Resultados La mediana de edad de los competidores fue de 38 ± 9 años, con predominancia del sexo masculino (n = 17, 65%). En el ecocardiograma basal se encontró una media de volumen auricular izquierdo de 33 ± 7 ml/m2 (min. 21 ml/m2, max. 47 ml/m2), con strain auricular izquierdo basal promedio del 31%. En la evaluación tras el esfuerzo se observó una disminución no significativa del volumen auricular izquierdo, que mantuvo el strain auricular e incluso aumentó su deformación, como en el caso de las mujeres evaluadas.  Conclusiones: A diferencia de lo observado en otros parámetros de función ventricular tras un esfuerzo, el strain auricular no se ve afectado por la fatiga cardíaca.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: The left atrium fulfills several functions during the cardiac cycle (reservoir, conduction and contraction) that could be affected by physiological remodeling as well as by stress induced by intense exercise (ultra-mountain trail races).  Objective: To assess whether the physiological adaptations of the left atrium to sport (increase in atrial volume) as well as the stress induced by ultramarathon competitions influence left atrial function estimated by atrial strain performed by speckle tracking.  Method: 28 participants were evaluated pre and post exercise, using Doppler echocardiography and new echocardiographic techniques. Conventional descriptive statistics, comparative analysis were performed for paired data using the t test and Pearson correlation to assess factors that influence the detected alterations.  Results: The median age of the competitors was 38 ± 9 years with a predominance of males (n = 17, 65%). In the basal echocardiogram, we found an average left atrial volume of 33 ± 7 ml/m2 (min. 21 ml/m2, max. 47 ml/m2), with an average baseline left atrial strain of 31%. In the post-effort evaluation, a non-significant decrease in left atrial volume was observed, maintaining atrial strain and even increasing its deformation, as in the case of the women evaluated.  Conclusions: Unlike what was observed in other parameters of ventricular function after effort, atrial strain is not affected by cardiac fatigue.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Strain miocárdico]]></kwd>
<kwd lng="es"><![CDATA[Fatiga cardíaca]]></kwd>
<kwd lng="es"><![CDATA[Corazón de atleta]]></kwd>
<kwd lng="en"><![CDATA[Myocardial strain]]></kwd>
<kwd lng="en"><![CDATA[Athlete’s heart]]></kwd>
<kwd lng="en"><![CDATA[Heart fatigue]]></kwd>
</kwd-group>
</article-meta>
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