<?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>1405-9940</journal-id>
<journal-title><![CDATA[Archivos de cardiología de México]]></journal-title>
<abbrev-journal-title><![CDATA[Arch. Cardiol. Méx.]]></abbrev-journal-title>
<issn>1405-9940</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Cardiología Ignacio Chávez]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-99402020000200116</article-id>
<article-id pub-id-type="doi">10.24875/acme.m20000104</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Feasibility in the echocardiographic estimation of parameters of the right ventricle in prone position]]></article-title>
<article-title xml:lang="es"><![CDATA[Factibilidad en la estimación ecocardiográfica de parámetros del ventrículo derecho en posición prono]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Santos-Martínez]]></surname>
<given-names><![CDATA[Luis E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendoza-Copa]]></surname>
<given-names><![CDATA[Gastón]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Cruz]]></surname>
<given-names><![CDATA[Edgar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez-Álvarez]]></surname>
<given-names><![CDATA[Rolando J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bucio-Reta]]></surname>
<given-names><![CDATA[Rafael E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Ruiz]]></surname>
<given-names><![CDATA[Francisco J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramos-Enríquez]]></surname>
<given-names><![CDATA[Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Márquez]]></surname>
<given-names><![CDATA[Miguel Á.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Baranda-Tovar]]></surname>
<given-names><![CDATA[Francisco M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Cardiología Ignacio Chávez Department of Cardiovascular Post-Surgical Intensive Care ]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Cardiology Hospital Department of Pulmonary Hypertension and Right Heart High Specialty Medical Unit]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<volume>90</volume>
<numero>2</numero>
<fpage>116</fpage>
<lpage>123</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-99402020000200116&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-99402020000200116&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-99402020000200116&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: Echocardiographic cardiac parameters in the prone position are usually obtained with an esophageal probe. The feasibility of obtaining them by means of a transthoracic approach is unknown.  Objective: Estimating the feasibility to obtain parameters of the right ventricle by transthoracic echocardiography in prone position on the subject.  Methods: Pilot design of consecutive case series without cardiopulmonary disease. Demographic, vital signs and echocardiographic variables were defined in the ventral initial, prone and ventral final decubitus positions. The data are shown with averages and standard deviations, and frequencies and percentages according to the variable. The differences between the positions were calculated with ANOVA of repeated samples and adjustment of Bonferroni test. Intra-subject variability was obtained by the Bland-Altman procedure and its 95% confidence interval.  Results: We studied 50 subjects, 44 (88%) males, age 30 ± 6 years and body mass index 25.65 ± 2.71 kg/m2. Tricuspid annular plane systolic excursion (TAPSE) and S&#8217;-wave were measured 100% of the time. The vital signs and echocardiographic variables according to the position had differences in: heart rate (74 ± 9 vs. 77 ± 9 vs. 75 ± 8 beats/min), partial oxygen saturation (94.40 ± 1.70 vs. 96.64 ± 1.79 vs. 95.32 ± 1.36%) and mean systemic blood pressure (65.33 ± 5.38 vs. 67.69 ± 6.31 vs. 65.29 ± 5.62 mmHg); TAPSE (19.74 ± 3.24 vs. 21.60 ± 2.97 vs. 19.44 ± 2.84 mm), mean difference (bias) 0 (2, &#8211;2.0) and S&#8217;-wave (13.52 ± 1.87 vs. 15.02 ± 2.09 vs. 13.46 ± 1.55 cm/s), mean difference (bias) &#8211;0.46 (1.21, &#8211;2.14) respectively.  Conclusions: Obtaining right ventricle parameters by transthoracic ecocardiopraphy is feasible in the prone position.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: Los parámetros cardiacos ecocardiográficos en posición de decúbito prono usualmente se obtienen con sonda esofágica. Se desconoce la factibilidad de obtenerlos mediante aproximación transtorácica.  Objetivo: Estimar la factibilidad para obtener parámetros del ventrículo derecho mediante ecocardiografía transtorácica en el sujeto en posición de decúbito prono.  Métodos: Diseño piloto de serie de casos consecutivos sin enfermedad cardiopulmonar. Se acotaron variables demográficas, signos vitales y ecocardiográficas en posición decúbito ventral inicial, prono y ventral final. Los datos se muestran con promedios y desviaciones estándar, y frecuencias y porcentajes de acuerdo con la variable. La diferencia entre las posiciones se calculó con ANOVA de muestras repetidas y ajuste de Bonferroni. Se obtuvo la variabilidad intrasujetos mediante el procedimiento de Bland-Altman y su intervalo de confianza al 95%.  Resultados: Se estudiaron 50 sujetos, 44 (88%) masculinos, edad 30 ± 6 años e índice de masa corporal 25.65 ± 2.71 kg/m2. El TAPSE (excursión sistólica del plano del anillo tricuspídeo) y la onda S&#8217; se midieron en el 100% de las veces. Los signos vitales y variables ecocardiográficas de acuerdo con la posición tuvieron diferencias en: frecuencia cardiaca (74 ± 9 vs. 77 ± 9 vs. 75 ± 8 lpm), saturación parcial de oxígeno (94.40 ± 1.70 vs. 96.64 ± 1.79 vs. 95.32 ± 1.36%) y la presión arterial sistémica media (65.33 ± 5.38 vs. 67.69 ± 6.31 vs. 65.29 ± 5.62 mmHg); TAPSE (19.74 ± 3.24 vs. 21.60 ± 2.97 vs. 19.44 vs. 2.84 mm), diferencia media (sesgo) 0 (2, &#8211;2.0) y onda S&#8217; (13.52 ± 1.87 vs. 15.02 ± 2.09 vs. 13.46 ± 1.55 cm/s), diferencia media (sesgo) &#8211;0.46 (1.21, &#8211;2.14) respectivamente.  Conclusión: En posición de decúbito prono es factible obtener parámetros del ventrículo derecho por ecocardiografía transtorácica.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Patient positioning]]></kwd>
<kwd lng="en"><![CDATA[Transthoracic echocardiography]]></kwd>
<kwd lng="en"><![CDATA[Ultrasonography]]></kwd>
<kwd lng="en"><![CDATA[Diagnostic image]]></kwd>
<kwd lng="en"><![CDATA[Hemodynamics]]></kwd>
<kwd lng="es"><![CDATA[Posición del paciente]]></kwd>
<kwd lng="es"><![CDATA[Ecocardiografía transtorácica]]></kwd>
<kwd lng="es"><![CDATA[Ultrasonografía]]></kwd>
<kwd lng="es"><![CDATA[Imagen diagnóstica]]></kwd>
<kwd lng="es"><![CDATA[Hemodinamia]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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