<?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>1688-0420</journal-id>
<journal-title><![CDATA[Revista Uruguaya de Cardiología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev.Urug.Cardiol.]]></abbrev-journal-title>
<issn>1688-0420</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Uruguaya de Cardiología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1688-04202019000300049</article-id>
<article-id pub-id-type="doi">10.29277/cardio.34.3.7</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Strain de la aurícula izquierda por speckle tracking: evaluación de su reproducibilidad global y segmentaria]]></article-title>
<article-title xml:lang="en"><![CDATA[Left atrium strain by speckle tracking: evaluation of its global and segmental reproducibility]]></article-title>
<article-title xml:lang="pt"><![CDATA[Strain do atrio esquerdo por speckle tracking: avaliação da sua reprodutibilidade global e segmentar]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Américo]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pécora]]></surname>
<given-names><![CDATA[Matías]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Janssen]]></surname>
<given-names><![CDATA[Barbara]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Parma]]></surname>
<given-names><![CDATA[Gabriel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Boggia]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Florio]]></surname>
<given-names><![CDATA[Lucía]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital de Clínicas Centro Cardiovascular Universitario Unidad de Imagen Cardíaca]]></institution>
<addr-line><![CDATA[Montevideo ]]></addr-line>
<country>Uruguay</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>34</volume>
<numero>3</numero>
<fpage>49</fpage>
<lpage>72</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_arttext&amp;pid=S1688-04202019000300049&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_abstract&amp;pid=S1688-04202019000300049&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_pdf&amp;pid=S1688-04202019000300049&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Objetivos:  evaluar la reproducibilidad intra e interobservador en la medición del strain auricular izquierdo función reservorio mediante speckle tracking, usando un protocolo para su análisis global y segmentario.  Métodos y resultados: se estableció un protocolo para la adquisición y medición del strain de la aurícula izquierda (SAI), para un análisis global y segmentario, utilizando un modelo tipo &#8220;ojo de buey&#8221;. Se evaluó su reproducibilidad mediante el coeficiente de correlación intraclase (CCI) en 20 participantes de la cohorte GEnotipo, Fenotipo y Ambiente de la HiperTensión arterial en el UruguaY (GEFA-HT-UY). Se obtuvo una excelente reproducibilidad global intraobservador de 0,92 (IC: 0,81-0,97) y buena reproducibilidad interobservador de 0,82 (IC: 0,59-0,92). El análisis segmentario de SAI no fue reproducible. Los valores promedio de SAI fueron 31,0% (± 7,5) para la vista de 4 cámaras; 34,6% (± 9,9) para la vista de 2 cámaras, y 36,8% (± 13,9) para la vista de 3 cámaras. El valor global de SAI tomando las tres vistas fue de 34,1% (± 7,8) y de 32,8% (± 6,5) considerando las vistas de 4 y 2 cámaras.  Conclusión: el protocolo de adquisición y análisis de SAI para la función de reservorio fue reproducible para su análisis global, no así para su análisis segmentario.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary:  Objective: to evaluate intra and inter-observer reproducibility of speckle tracking left atrial strain reservoir function using a protocol for its global and segmental analysis.  Methods: a protocol for acquisition and measurement of left atrial strain was created (bull&#8217;s-eye type), for its global and segmental analysis. Reproducibility was assessed using intraclass correlation coefficient in twenty participants from the GEnotipo, Fenotipo y Ambiente de la HiperTensión arterial en el UruguaY cohort. For global assessment intra-observer reproducibility graded excellent (0.92 (IC: 0.81-0.97)) while inter-observer reached good reproducibility (0.82 (IC: 0.59-0.92)). Left atrial strain segmental analysis was not reproducible. Mean (±SD) left atrial strain was 31.0±7.5% for 4 chamber view, 34.6±9.9% for 2 chamber view and 36.8±13.9% for 3 chamber view. Global left atrial strain considering three views was 34.1±7.8%, and 32.8±6.5% considering 4 and 2 chamber views.  Conclusion:  left atrial strain acquisition and analysis protocol for reservoir function was reproducible for its global but not for its segmental analysis.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo:  Objetivo:  avaliar a reprodutibilidade intra e interobservador do strain speckle tracking atrial esquerdo função de reservatório usando um protocolo para sua análise global e segmentar.  Métodos:  foi criado um protocolo de aquisição e mensuração de strain do atrio esquerdo, por sua análise global e segmentar (tipo olho de boi). A reprodutibilidade foi avaliada por meio do coeficiente de correlação intraclasse em vinte participantes da coorte GEnotipo, Fenotipo e Ambiente da Hiper-Tensiologia arterial em UruguaY. Para a avaliação global, a reprodutibilidade intra-observador foi excelente (0,92 (IC: 0,81-0,97)), enquanto o interobservador alcançou boa reprodutibilidade (0,82 (IC: 0,59-0,92)). A análise segmentar de strain do atrio esquerdo não foi reprodutível. A média (± SD) de strain do atrio esquerdo foi 31,0 ± 7,5% para 4 câmaras, 34,6 ± 9,9% para 2 câmaras e 36,8 ± 13,9% para 3 câmaras. A strain global, considerando três visualizações, foi de 34,1 ± 7,8% e 32,8 ± 6,5% considerando a visão de 4 e 2 câmaras.  Conclusão: o protocolo de aquisição e análise de strain do atrio esquerdo para função de reservatório foi reproduzível para sua análise global, mas não para sua segmentação.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Strain auricular izquierdo]]></kwd>
<kwd lng="es"><![CDATA[Ecocardiografía Speckle-Tracking]]></kwd>
<kwd lng="es"><![CDATA[Estudio poblacional]]></kwd>
<kwd lng="en"><![CDATA[Left atrial strain]]></kwd>
<kwd lng="en"><![CDATA[Speckle-Tracking Echocardiography]]></kwd>
<kwd lng="en"><![CDATA[Population study]]></kwd>
<kwd lng="pt"><![CDATA[Strain auricular esquerdo]]></kwd>
<kwd lng="pt"><![CDATA[Ecocardiografia Speckle-Tracking]]></kwd>
<kwd lng="pt"><![CDATA[Estudo populacional]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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