<?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>S1688-04202015000300007</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Registro Uruguayo de Miocardiopatía Hipertrófica (RUMHI)]]></article-title>
<article-title xml:lang="en"><![CDATA[Uruguayan Registry of Hypertrophic Cardiomyopathy]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vidal]]></surname>
<given-names><![CDATA[Inés]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Estigarribia]]></surname>
<given-names><![CDATA[Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Báez]]></surname>
<given-names><![CDATA[Álvaro]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vidal]]></surname>
<given-names><![CDATA[Luis]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Sociedad Uruguaya de Cardiología (SUC)  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2015</year>
</pub-date>
<volume>30</volume>
<numero>3</numero>
<fpage>295</fpage>
<lpage>311</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_arttext&amp;pid=S1688-04202015000300007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_abstract&amp;pid=S1688-04202015000300007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_pdf&amp;pid=S1688-04202015000300007&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Fundamento y objetivos: no contamos con datos clínicos, morfológicos, de manejo ni pronósticos de la miocardiopatía hipertrófica (MH) en Uruguay. Para obtenerlos, implementamos un Registro Uruguayo de MH (RUMHI). Método: se estudió una población de 52 pacientes con MH, con seguimiento promedio de 31,7 ± 12,5 meses. Resultados: con predominio femenino (58%) y edad de 6 a 82 años (50,3 ± 20,7), el 69% presenta síntomas, preponderando la disnea (54%), que se asoció a la presencia de obstrucción intraventricular (p=0,048) y el síncope a los antecedentes familiares de muerte súbita (p=0,033); 13% presenta fibrilación auricular. Veinticinco (48%) asocian hipertensión arterial (HTA); 23 de grado 1. Tienen patrón ecocardiográfico típico: cavidad pequeña, función sistólica conservada, hipertrofia ventricular izquierda (HVI) asimétrica (71%) y máximo espesor en los segmentos basales del septum (90%). El 58% presenta obstrucción dinámica; se pesquisó la latente solo en 25%. La insuficiencia mitral asoció su severidad con la obstrucción dinámica del tracto de salida del ventrículo izquierdo (p=0,04). Los hipertensos no mostraron mayor hipertrofia ni peor clase funcional (CF). Con una mortalidad global de 8,7%, se observa mejoría sintomática significativa al final del seguimiento (69% vs. 43% ; p=0,001). Conclusiones: pese al limitado número de pacientes, el RUMHI mostró una población uruguaya con MH de similares características a las descritas en la literatura. La coexistencia con HTA es frecuente (48%), pero no se relacionó con una mayor HVI ni con peor CF. Se detectó búsqueda deficitaria de obstrucción dinámica latente. La población seguida (88,5%) mostró mejoría de la CF, en probable relación con el tratamiento instaurado.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Grounds and objectives: we do not have clinical, morphological, handling or prognostic data of hypertrophic cardiomyopathy (HC) in Uruguay. To obtain them, we implemented an Uruguayan Registry of HC (RUMHI). Method: we studied a population of 52 patients with HC, with average follow-up of 31.7 ± 12.5 months. Results: with female predominance (58%) and age 6 to 82 years (50.3± 20.7), 69% present symptoms, prevailing dyspnea (54%) associated with the presence of intraventricular obstruction (p = 0, 048) and syncope, related to a family history of sudden death (p = 0.033). 13% have atrial fibrillation. Twenty-five (48%) associated arterial hypertension (AH); 23 of grade 1. They have typical echocardiographic pattern: small cavity, preserved systolic function, asymmetric left ventricular hypertrophy (LVH) (71%) and maximum thickness on the basal segments of the septum (90%). 58% present dynamic obstruction; latent was searched only in 25%. Mitral regurgitation severity was associated with dynamic left ventricular outflow tract obstruction (p=0,04). Hypertensive subjects showed no major hypertrophy nor worse Functional Class (FC). With a global mortality rate of 8.7%, significant symptomatic improvement was observed at the end of the follow-up (69% vs. 43% ; p=0,001). Conclusions: despite the limited number of patients, the RUMHI showed a Uruguayan population with HC presenting similar characteristics to those described in literature. Coexistence with AH is frequent (48%) but was not related to a greater LVH nor with worse FC. Insufficient search for latent dynamic obstruction was detected. The population followed (88.5%) showed improvement in FC, likely related to the treatment established.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[MIOCARDIOPATÍA HIPERTRÓFICA]]></kwd>
<kwd lng="es"><![CDATA[REGISTRO]]></kwd>
<kwd lng="es"><![CDATA[URUGUAY]]></kwd>
<kwd lng="en"><![CDATA[HYPERTROPHIC CARDIOMYOPATHY]]></kwd>
<kwd lng="en"><![CDATA[REGISTRY]]></kwd>
<kwd lng="en"><![CDATA[URUGUAY]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <div class="Section1">      <p><b><span style="font-family: Verdana; ">Art&iacute;culo original&nbsp;</span></b></p>           <p><span style="font-size: 14pt; font-family: Verdana; ">Registro <span class="GramE">Uruguayo</span> de Miocardiopat&iacute;a Hipertr&oacute;fica (RUMHI)&nbsp; </span><span style="font-size: 14pt;"><o:p></o:p></span></p>           <p><span style="font-size: 10pt; font-family: Verdana; ">Dres. In&eacute;s Vidal, Jorge Estigarribia, &Aacute;lvaro B&aacute;ez, Luis Vidal&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Cardi&oacute;logos. Coordinadores del Registro Uruguayo de Miocardiopat&iacute;a Hipertr&oacute;fica. Sociedad Uruguaya de Cardiolog&iacute;a.    <br>      Correspondencia: Dra. In&eacute;s Vidal. Presidente Gir&oacute; 2540. Montevideo CP 11600. Correo electr&oacute;nico:      </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"> <a href="mailto:invi@montevideo.com.uy">invi@montevideo.com.uy</a></span><span style="font-size: 10pt; font-family: Verdana; "><br style="">      </span></p>         <p style="margin: 0cm 0cm 0.0001pt;"><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Recibido octubre 20, 2015; aceptado noviembre 15, 2015.</span><o:p></o:p></p>           <p style="margin: 0cm 0cm 0.0001pt;"><span style="font-size: 10pt; font-family: Verdana;"><o:p>&nbsp;</o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"><b> <span style="font-size: 10pt; font-family: Verdana; ">Resumen&nbsp;</span></b><span style="font-size: 10pt; font-family: Verdana; "> </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           ]]></body>
<body><![CDATA[<p style="margin: 0cm 0cm 0.0001pt;"><b> <span style="font-size: 10pt; font-family: Verdana; ">Fundamento y objetivos:</span></b><span style="font-size: 10pt; font-family: Verdana; "> no contamos con datos cl&iacute;nicos, morfol&oacute;gicos, de manejo ni pron&oacute;sticos de la miocardiopat&iacute;a hipertr&oacute;fica (MH) en Uruguay. Para obtenerlos, implementamos un Registro Uruguayo de MH (RUMHI).    <br>      <b>M&eacute;todo:</b> se estudi&oacute; una poblaci&oacute;n de 52 pacientes con MH, con seguimiento promedio de 31,7 &plusmn; 12,5 meses.    <br>      <b>Resultados:</b> con predominio femenino (58%) y edad de 6 a 82 a&ntilde;os (50,3 &plusmn; 20,7), el 69% presenta s&iacute;ntomas, preponderando la disnea (54%), que se asoci&oacute; a la presencia de obstrucci&oacute;n intraventricular (p=0,048) y el s&iacute;ncope a los antecedentes familiares de muerte s&uacute;bita (p=0,033); 13% presenta fibrilaci&oacute;n auricular. Veinticinco (48%) asocian hipertensi&oacute;n arterial (HTA); 23 de grado 1. Tienen patr&oacute;n ecocardiogr&aacute;fico t&iacute;pico: cavidad peque&ntilde;a, funci&oacute;n sist&oacute;lica conservada, hipertrofia ventricular izquierda (HVI) asim&eacute;trica (71%) y m&aacute;ximo espesor en los segmentos basales del septum (90%). El 58% presenta obstrucci&oacute;n din&aacute;mica; se pesquis&oacute; la latente solo en 25%. La insuficiencia mitral asoci&oacute; su severidad con la obstrucci&oacute;n din&aacute;mica del tracto de salida del ventr&iacute;culo izquierdo (p=0,04). Los hipertensos no mostraron mayor hipertrofia ni peor clase funcional (CF). Con una mortalidad global de 8,7%, se observa mejor&iacute;a sintom&aacute;tica significativa al final del seguimiento (69% vs. 43<span class="GramE">% ;</span> p=0,001).    <br>      <b>Conclusiones:</b> pese al limitado n&uacute;mero de pacientes, el RUMHI mostr&oacute; una poblaci&oacute;n uruguaya con MH de similares caracter&iacute;sticas a las descritas en la literatura. La coexistencia con HTA es frecuente (48%), pero no se relacion&oacute; con una mayor HVI ni con peor CF. Se detect&oacute; b&uacute;squeda deficitaria de obstrucci&oacute;n din&aacute;mica latente. La poblaci&oacute;n seguida (88,5%) mostr&oacute; mejor&iacute;a de la CF, en probable relaci&oacute;n con el tratamiento instaurado.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"><b> <span style="font-size: 10pt; font-family: Verdana; ">Palabras clave:</span></b><span style="font-size: 10pt; font-family: Verdana; ">    <br>      &nbsp;&nbsp;&nbsp;&nbsp;MIOCARDIOPAT&Iacute;A HIPERTR&Oacute;FICA    <br>      &nbsp;&nbsp;&nbsp;&nbsp;REGISTRO    <br>      &nbsp;&nbsp;&nbsp;&nbsp;URUGUAY&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"><span style="font-size: 10pt; font-family: Verdana;"><o:p>&nbsp;</o:p></span></p>    <b style=""><span style="font-size: 12pt; font-family: Verdana; " lang="EN-US">Uruguayan Registry of Hypertrophic Cardiomyopathy</span></b>     <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           ]]></body>
<body><![CDATA[<p style="margin: 0cm 0cm 0.0001pt;"><b> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">Summary&nbsp;</span></b><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"> </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"><b> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">Grounds and objectives:</span></b><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"> we do not have clinical, morphological, handling or prognostic data of hypertrophic cardiomyopathy (HC) in <st1:country-region w:st="on"><st1:place w:st="on">Uruguay</st1:place></st1:country-region>. To obtain them, we implemented <span class="GramE">an</span> Uruguayan Registry of HC (RUMHI).    <br>      <b>Method:</b> we studied a population of 52 patients with HC, with average follow-up of 31.7 &plusmn; 12.5 months.    <br>      <b>Results:</b> with female predominance (58%) and age 6 to 82 years (50.3&plusmn; 20.7), 69% present symptoms, prevailing dyspnea (54%) associated with the presence of intraventricular obstruction (p = 0, 048) and syncope, related to a family history of sudden death (p = 0.033). 13% have atrial fibrillation. Twenty-five (48%) associated arterial hypertension (AH); 23 of grade 1. They have typical echocardiographic pattern: small cavity, preserved systolic function, asymmetric left ventricular hypertrophy (LVH) (71%) and maximum thickness on the basal segments of the septum (90%). 58% present dynamic obstruction; latent was searched only in 25%. Mitral regurgitation severity was associated with dynamic left ventricular outflow tract obstruction (p=0<span class="GramE">,04</span>). Hypertensive subjects showed <span class="GramE">no major hypertrophy nor</span> worse Functional Class (FC). With a global mortality rate of 8.7%, significant symptomatic improvement was observed at the end of the follow-up (69% vs. 43<span class="GramE">% ;</span> p=0,001).    <br>      <b>Conclusions:</b> despite the limited number of patients, the RUMHI showed a Uruguayan population with HC presenting similar characteristics to those described in literature. Coexistence with AH is frequent (48%) but was not related to a greater LVH nor with worse FC. Insufficient search for latent dynamic obstruction was detected. The population followed (88.5%) showed improvement in FC, likely related to the treatment established.</span></p>      <p style="margin: 0cm 0cm 0.0001pt;"><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><b>Key words:</b>    <br>      &nbsp;&nbsp;&nbsp;&nbsp;HYPERTROPHIC CARDIOMYOPATHY    <br>      &nbsp;&nbsp;&nbsp;&nbsp;REGISTRY    <br>      &nbsp;&nbsp;&nbsp;&nbsp;URUGUAY&nbsp; <o:p></o:p></span></p>           <p class="MsoNormal"><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p>&nbsp;</o:p></span></p>           ]]></body>
<body><![CDATA[<p style="margin: 0cm 0cm 0.0001pt;"><b> <span style="font-size: 10pt; font-family: Verdana; ">Introducci&oacute;n&nbsp;</span></b><span style="font-size: 10pt; font-family: Verdana; "> </span> <o:p></o:p></p>           <p style="margin: 0cm 0cm 0.0001pt;"><span style="font-size: 10pt; font-family: Verdana;"><o:p>&nbsp;</o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">La MH es una miocardiopat&iacute;a primaria de etiolog&iacute;a gen&eacute;tica con transmisi&oacute;n autos&oacute;mica <span class="GramE">dominante<sup><a name="-1"></a><a name="-2"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#1">1</a></span><span style="font-size: 10pt; font-family: Verdana; ">,</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#2">2</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, ocasionada por mutaciones en genes que codifican diversas prote&iacute;nas del sarc&oacute;mero</span><sup><span style="font-size: 10pt; font-family: Verdana; "><a name="-3"></a>(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#3">3</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">. Se caracteriza fenot&iacute;picamente por hipertrofia parietal de uno o ambos ventr&iacute;culos (m&aacute;s frecuentemente el izquierdo), de distribuci&oacute;n t&iacute;picamente asim&eacute;trica, sin dilataci&oacute;n ventricular y en ausencia de patolog&iacute;a card&iacute;aca o sist&eacute;mica que pueda <span class="GramE">explicarla<sup><a name="-4"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#4">4</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">. Siendo mayoritariamente familiar, hay casos espor&aacute;dicos por mutaciones <i>de <span class="GramE">novo<sup><span style="font-style: normal;"><a name="-5"></a><a name="-6"></a>(</span></sup></span></i></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#5">5</a></span><span style="font-size: 10pt; font-family: Verdana; ">,</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#6">6</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, luego de las cuales la condici&oacute;n se transmite a la descendencia. Frecuente, pero no invariablemente, se observa obstrucci&oacute;n din&aacute;mica del tracto de salida del ventr&iacute;culo <span class="GramE">izquierdo<sup><a name="-7"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#7">7</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; "> (TSVI) ocasionada por la hipertrofia del septum basal anterior junto con un movimiento an&oacute;malo de la valva anterior de la v&aacute;lvula mitral que genera a su vez grados variables de insuficiencia valvular</span><sup><span style="font-size: 10pt; font-family: Verdana; "><a name="-8"></a>(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#8">8</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">La forma m&aacute;s sencilla y accesible de realizar su diagn&oacute;stico es objetivar una HVI sin sobrecarga hemodin&aacute;mica que la justifique en un ecocardiograma <span class="GramE">bidimensional<sup><a name="-9"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#9">9</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Su prevalencia es de 1/500, seg&uacute;n relevamientos ecocardiogr&aacute;ficos en poblaciones de individuos de 16 a 87 a&ntilde;os pertenecientes a distintas etnias y <span class="GramE">comunidades<sup><a name="-10"></a><a name="-11"></a><a name="-12"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#10">10-12</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, aunque ciertas caracter&iacute;sticas de la enfermedad permiten suponer que podr&iacute;a ser a&uacute;n mayor<a name="-13"></a><a name="-14"></a></span><sup><span style="font-size: 10pt; font-family: Verdana; ">(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#13">13</a></span><span style="font-size: 10pt; font-family: Verdana; ">,</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#14">14</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">. Si la prevalencia en Uruguay fuera la misma, tendr&iacute;amos m&aacute;s de 6.500 portadores de <span class="GramE">MH<sup><a name="-15"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#15">15</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">. Se trata de una patolog&iacute;a inc&oacute;moda y desafiante para el cardi&oacute;logo cl&iacute;nico, con dificultades diagn&oacute;sticas derivadas de la amplia prevalencia de hipertensi&oacute;n arterial (HTA) y estenosis a&oacute;rtica en las poblaciones adultas occidentales y del car&aacute;cter inconstante y din&aacute;mico de la estenosis del TSVI</span><sup><span style="font-size: 10pt; font-family: Verdana; "><a name="-16"></a>(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#16">16</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">. Tambi&eacute;n dificultan su reconocimiento la existencia de una etapa de latencia fenot&iacute;pica y algunas variantes de distribuci&oacute;n de la hipertrofia de dif&iacute;cil detecci&oacute;n <span class="GramE">ecocardiogr&aacute;fica<sup><a name="-17"></a><a name="-18"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#17">17</a></span><span style="font-size: 10pt; font-family: Verdana; ">,</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#18">18</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">. Adem&aacute;s, las manifestaciones electrocardiogr&aacute;ficas pueden llamar a confusi&oacute;n con la cardiopat&iacute;a <span class="GramE">isqu&eacute;mica<a name="-19"></a><sup>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#19">19</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Adicionalmente, el manejo pr&aacute;ctico de los pacientes afectados puede generar &aacute;reas de incertidumbre, dadas su heterogeneidad anat&oacute;mica y cl&iacute;nica, su compleja fisiopatolog&iacute;a y la dificultad para estimar el riesgo individual de muerte s&uacute;bita (MS<span class="GramE">)<sup><a name="-20"></a><a name="-21"></a><a name="-22"></a><a name="-23"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#20">20-23</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">. Se suma su inapropiada percepci&oacute;n como una patolog&iacute;a rara, configurando un &aacute;mbito proclive a la escasa atenci&oacute;n a la enfermedad, el subdiagn&oacute;stico y la pobre sistematizaci&oacute;n de su <span class="GramE">tratamiento<sup><a name="-24"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#24">24</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Durante el a&ntilde;o 2009, a instancias de las autoridades de la Sociedad Uruguaya de Cardiolog&iacute;a (SUC), conformamos un grupo de trabajo con la finalidad de mejorar el conocimiento y manejo cl&iacute;nico de la MH en Uruguay y decidimos implementar un registro de pacientes con diagn&oacute;stico confirmado de la enfermedad. Lo denominamos Registro Uruguayo de Miocardiopat&iacute;a Hipertr&oacute;fica (RUMHI) y nos constituimos como Grupo RUMHI.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p class="MsoNormal"><span style="font-size: 10pt; font-family: Verdana;"><o:p>&nbsp;</o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"><b> <span style="font-size: 10pt; font-family: Verdana; ">Objetivos&nbsp;</span></b><span style="font-size: 10pt; font-family: Verdana; "> </span> <o:p></o:p></p>           <p style="margin: 0cm 0cm 0.0001pt;"><span style="font-size: 10pt; font-family: Verdana;"><o:p>&nbsp;</o:p></span></p>           ]]></body>
<body><![CDATA[<p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">1.&nbsp;&nbsp;&nbsp;&nbsp;Obtener un mejor conocimiento de las presentaciones cl&iacute;nicas y ecocardiogr&aacute;ficas de la enfermedad, y de la forma en que se estudia en nuestro medio.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">2.&nbsp;&nbsp;&nbsp;&nbsp;Mantener una base de datos prospectiva para obtener informaci&oacute;n sobre la evoluci&oacute;n sintom&aacute;tica, la realizaci&oacute;n de nuevos procedimientos terap&eacute;uticos y la sobrevida.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">3.&nbsp;&nbsp;&nbsp;&nbsp;Explorar la posible asociaci&oacute;n del estado sintom&aacute;tico y la mortalidad con diversas variables cl&iacute;nicas y ecocardiogr&aacute;ficas, asumiendo que, con el dise&ntilde;o adoptado, la comprobaci&oacute;n de una asociaci&oacute;n estad&iacute;sticamente significativa no implica necesariamente una relaci&oacute;n de causalidad.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">4.&nbsp;&nbsp;&nbsp;&nbsp;Comparar la informaci&oacute;n obtenida a nivel nacional con la procedente de otros pa&iacute;ses.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p class="MsoNormal"><span style="font-size: 10pt; font-family: Verdana;"><o:p>&nbsp;</o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"><b> <span style="font-size: 10pt; font-family: Verdana; ">Material y m&eacute;todo&nbsp;</span><o:p></o:p></b></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana">&nbsp;</span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Los fundamentos del RUMHI fueron divulgados en una publicaci&oacute;n <span class="GramE">previa<sup><a name="-25"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#25">25</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>              <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Se trata de un estudio observacional anal&iacute;tico con seguimiento prospectivo (registro activo).&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Se incluyeron pacientes cuyo ecocardiograma evidenciara un espesor parietal del ventr&iacute;culo izquierdo (VI) en di&aacute;stole &sup3; 15 mm en cualquier segmento, sin una causa card&iacute;aca o sist&eacute;mica que la <span class="GramE">explicara<sup>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#4">4</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, referidos voluntariamente por colegas de todo el pa&iacute;s convocados por el Grupo RUMHI. Los ni&ntilde;os se incorporaron con un m&aacute;ximo espesor diast&oacute;lico mayor de 2 desv&iacute;os est&aacute;ndar por encima de la media normal para la superficie <span class="GramE">corporal<sup><a name="-26"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#26">26</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           ]]></body>
<body><![CDATA[<p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Fueron criterios de exclusi&oacute;n del registro:&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">1.&nbsp;&nbsp;&nbsp;&nbsp;Antecedentes de HTA cr&oacute;nica grado 3 de la European Society of Cardiology (ESC<span class="GramE">)<sup><a name="-27"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#27">27</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">. La HTA grados 1 y 2 no se consider&oacute; un criterio de exclusi&oacute;n absoluto si la severidad y la distribuci&oacute;n del engrosamiento parietal exced&iacute;an francamente lo esperable para esa condici&oacute;n.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">2.&nbsp;&nbsp;&nbsp;&nbsp;La estenosis valvular a&oacute;rtica de grado moderado o mayor.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">3.&nbsp;&nbsp;&nbsp;&nbsp;Pacientes con diagn&oacute;stico de amiloidosis u otros procesos infiltrativos del miocardio.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Se requiri&oacute; el llenado de un <i>formulario de ingreso </i>con datos cl&iacute;nicos<i> </i>y un <i>formulario de ecocardiograf&iacute;a </i>acompa&ntilde;ado de una secuencia din&aacute;mica del ecocardiograma o una imagen est&aacute;tica representativa, a ser evaluados por los coordinadores del estudio. Una vez aceptado el caso, se solicit&oacute; al colega remitente recabar el <i>consentimiento informado</i> y completar un <i>formulario de inclusi&oacute;n</i> con la totalidad de los datos requeridos por el estudio (</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#fig_1">figura 1</a></span><span style="font-size: 10pt; font-family: Verdana; ">)<b><i>.</i></b></span></p>         <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"><span style="font-size: 10pt; font-family: Verdana;"><o:p><a name="fig_1"></a><img style="width: 554px; height: 491px;" alt="" src="/img/revistas/ruc/v30n3/3a07f1.JPG">&nbsp;</o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"><span style="font-size: 10pt; font-family: Verdana;">    <br>  <o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Ingresaron pacientes desde junio de 2010 al 31 de mayo de 2013, registr&aacute;ndose: antecedentes familiares (AF) de MH y de MS, tratamientos invasivos previos, posibles causas de sobrecarga hemodin&aacute;mica del VI, s&iacute;ntomas, clase funcional (CF), ritmo card&iacute;aco, datos del electrocardiograma (ECG) y datos ecocardiogr&aacute;ficos. Se consider&oacute; <i>fracci&oacute;n de eyecci&oacute;n del VI (FEVI) normal </i>a un valor &sup3; 55%. <i>Hipertrofia asim&eacute;trica</i> <i>del VI</i> implica una relaci&oacute;n entre el espesor m&aacute;ximo del septum interventricular (SIV) y el de la pared posterior (PP) &sup3; 1,5. Un gradiente &sup3; 30 mmHg en cualquier sector ventricular, basalmente o con maniobras din&aacute;micas se consider&oacute;<i> obstrucci&oacute;n.</i>&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>             ]]></body>
<body><![CDATA[<p style="margin: 0cm 0cm 0.0001pt;"><a href="MasterFrame2_%283%29_93.htm"></a> <span style="font-size: 10pt; font-family: Verdana; ">En el per&iacute;odo agosto-noviembre de 2014 los coordinadores realizaron la revisi&oacute;n de historias o establecieron contacto telef&oacute;nico con los pacientes o sus m&eacute;dicos. Se investigaron tres aspectos: a) sobrevida; b) s&iacute;ntomas y CF, y c) nuevos procedimientos relacionados con la enfermedad.&nbsp; </span> <o:p></o:p></p>           <p style="margin: 0cm 0cm 0.0001pt;"><span style="font-size: 10pt; font-family: Verdana;"><o:p>&nbsp;</o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"><b> <span style="font-size: 10pt; font-family: Verdana; ">Estad&iacute;stica&nbsp;</span></b><span style="font-size: 10pt; font-family: Verdana; "> </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Para el an&aacute;lisis de las variables categ&oacute;ricas se utiliz&oacute; el test exacto de Fisher (variables dicot&oacute;micas) y el test de chi cuadrado de Pearson (variables no dicot&oacute;micas). Para la diferencia de medias en las variables continuas se utiliz&oacute; la prueba no param&eacute;trica de Kruskall Wallis y&nbsp;el test t-Student.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">El intervalo de confianza para la media de las variables continuas se obtuvo con un nivel de 95%.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">En el an&aacute;lisis del seguimiento se utiliz&oacute; el test de Mc Nemar para datos nominales pareados.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Para todos los tests se consider&oacute; que existe asociaci&oacute;n significativa entre las variables si p-valor &lt; 0,05.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Todas las tablas y los gr&aacute;ficos del trabajo se realizaron utilizando el software estad&iacute;stico R </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"> <a href="http://www.r-project.org/">http://www.r-project.org/</a></span><span style="font-size: 10pt; font-family: Verdana; ">.</span><o:p></o:p></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"><b> <span style="font-size: 10pt; font-family: Verdana; ">&Eacute;tica&nbsp;</span></b><span style="font-size: 10pt; font-family: Verdana; "> </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           ]]></body>
<body><![CDATA[<p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">El protocolo del registro fue dise&ntilde;ado en cumplimiento de los principios de la Declaraci&oacute;n de Helsinki de 1975 y sus revisiones posteriores, y recibi&oacute; la aprobaci&oacute;n del Comit&eacute; de &Eacute;tica de la SUC y de la Comisi&oacute;n Nacional de &Eacute;tica en Investigaci&oacute;n del Ministerio de Salud P&uacute;blica.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p class="MsoNormal"><span style="font-size: 10pt; font-family: Verdana;"><o:p>&nbsp;</o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"><b> <span style="font-size: 10pt; font-family: Verdana; ">Resultados</span><o:p></o:p></b></p>           <p style="margin: 0cm 0cm 0.0001pt;"><b> <span style="font-size: 10pt; font-family: Verdana; ">&nbsp;</span></b><span style="font-size: 10pt; font-family: Verdana; "> </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Fueron considerados 59 pacientes; tres se excluyeron por HTA grados 2 o 3 que pod&iacute;a explicar la hipertrofia que presentaban, y cuatro por informaci&oacute;n insuficiente. Las caracter&iacute;sticas cl&iacute;nicas de los 52 incluidos aparecen en la </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"> <a href="#tab_1">tabla 1</a></span><span style="font-size: 10pt; font-family: Verdana; ">;<b><i> </i></b>30 son de sexo femenino (58%).</span></p>         <p style="margin: 0cm 0cm 0.0001pt;">&nbsp;</p>         <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; "><a name="tab_1"></a><img style="width: 550px; height: 414px;" alt="" src="/img/revistas/ruc/v30n3/3a07t1.JPG"></span></p>         <p style="margin: 0cm 0cm 0.0001pt;">&nbsp;</p>         <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; "> La edad var&iacute;a entre 6 y 82 a&ntilde;os, con media de 50,3 &plusmn; 20,7 y distribuci&oacute;n bimodal (31 a 40 y 71 a 80 a&ntilde;os; </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"> <a href="#graf_1">figura 2</a></span><span style="font-size: 10pt; font-family: Verdana; ">).</span></p>        <p style="margin: 0cm 0cm 0.0001pt;">&nbsp;</p>         ]]></body>
<body><![CDATA[<p style="margin: 0cm 0cm 0.0001pt;"><a name="graf_1"></a><img style="width: 433px; height: 308px;" alt="" src="/img/revistas/ruc/v30n3/3a07g1.JPG"></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana">&nbsp;</span><o:p></o:p></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">El sexo femenino muestra una edad significativamente mayor (55,3 &plusmn; 20,2 vs 43,6 &plusmn; 19,8 a&ntilde;os; p=0,035). La edad tambi&eacute;n se asoci&oacute; con otras caracter&iacute;sticas cl&iacute;nicas (</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#tab_2">tabla 2</a></span><span style="font-size: 10pt; font-family: Verdana; ">).&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; "><o:p>&nbsp;</o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"><span style="font-size: 10pt; font-family: Verdana;"><a name="tab_2"></a><img style="width: 549px; height: 231px;" alt="" src="/img/revistas/ruc/v30n3/3a07t2.JPG">&nbsp;<o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;">  <multicol gutter="18" cols="2"></multicol> <span style="font-size: 10pt; font-family: Verdana; ">  Catorce pacientes (27%) tienen AF de MS y nueve (17%) de MH, incluyendo tres pacientes (6%) con ambas condiciones. Veinticinco presentan HTA (48%), 23 de ellos de grado 1 y dos de grado 2. La HTA se asoci&oacute; en forma directa y significativa con mayor edad (p=0), y negativamente con los antecedentes de MH entre familiares (p=0,002) y con el espesor septal (p=0,001) (</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#tab_3">tabla 3</a></span><span style="font-size: 10pt; font-family: Verdana; ">).</span></p>         <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; "><o:p><a name="tab_3"></a><img style="width: 550px; height: 269px;" alt="" src="/img/revistas/ruc/v30n3/3a07t3.JPG"></o:p></span></p>         <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; "><o:p>&nbsp;</o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Treinta y seis estaban sintom&aacute;ticos al momento de su inclusi&oacute;n en el registro (69%), presentando 28 (54%) disnea, 14 (27%) &aacute;ngor pectoris y 9 (17%) s&iacute;ncope (</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#fig_2">figura 3</a></span><span style="font-size: 10pt; font-family: Verdana; ">). Los pacientes sintom&aacute;ticos se asociaron con una edad significativamente mayor (55,6 &plusmn; 17,7 vs. 38,4 &plusmn; 22,4 a&ntilde;os; p=0,009). La disnea se asoci&oacute; a la presencia de obstrucci&oacute;n intraventricular (obstrucci&oacute;n 66,7% vs. no obstrucci&oacute;n 36,4%; p=0,048) y el s&iacute;ncope a los antecedentes familiares de MS (con AF 35,7% vs. sin AF 8,6%; p=0,033). Veinticuatro pacientes (46%) estaban en CF I, 19 (37%) en CF II, 8 (15%) en CF III y 1 (2%) en CF IV, con media de 1,7.&nbsp;</span></p>        ]]></body>
<body><![CDATA[<p style="margin: 0cm 0cm 0.0001pt;">&nbsp;</p>         <p style="margin: 0cm 0cm 0.0001pt;"><a name="fig_2"></a><img style="width: 268px; height: 344px;" alt="" src="/img/revistas/ruc/v30n3/3a07f2.JPG"><span style="font-size: 10pt; font-family: Verdana; "> </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"><span style="font-size: 10pt; font-family: Verdana;"><span style="">&nbsp;</span><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Los pacientes sintom&aacute;ticos se asociaron con una edad significativamente mayor (p=0,009).&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>               <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Doce pacientes (23%) tienen dispositivos implantados previamente; 7 (13%) marcapasos definitivo (MPD) y 6 (11%) desfibrilador autom&aacute;tico implantable (DAI), incluyendo un paciente con ambos implantes en forma sucesiva, y seis poseen antecedentes de intervenciones de reducci&oacute;n septal: cinco miectom&iacute;as quir&uacute;rgicas (cuatro con sustituci&oacute;n de v&aacute;lvula mitral concomitante) y una ablaci&oacute;n septal con alcohol.&nbsp;</span><span style="font-size: 10pt; font-family: Verdana;">&nbsp;<o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">  El ECG muestra ritmo sinusal en 42 pacientes (81%), fibrilaci&oacute;n auricular (FA) en 7 (13%) y 3 tienen ritmo de marcapasos (6%). El complejo QRS se evalu&oacute; en 40 pacientes (en 12 individuos no se consign&oacute; esta informaci&oacute;n), resultando anormal en 31 (77,5%). La repolarizaci&oacute;n ventricular result&oacute; anormal en el 91% de los casos consignados (40 de 44 pacientes).&nbsp;</span><o:p></o:p></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana">&nbsp;</span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"><b> <span style="font-size: 10pt; font-family: Verdana; ">Valores ecocardiogr&aacute;ficos&nbsp;</span></b><span style="font-size: 10pt; font-family: Verdana; "> </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Se observ&oacute; asimetr&iacute;a de la HVI en 37 pacientes (71%), con m&aacute;ximo espesor del VI en los segmentos basal y medio del SIV en 47 pacientes (90%), en el SIV y el segmento anterobasal en dos, en el SIV y el &aacute;pex en uno, en el segmento anteroseptal en otro y en el &aacute;pex en un caso (</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#tab_4">tabla 4</a></span><span style="font-size: 10pt; font-family: Verdana; ">).</span></p>         <br>     <a name="tab_4"></a><img style="width: 537px; height: 276px;" alt="" src="/img/revistas/ruc/v30n3/3a07t4.JPG">      ]]></body>
<body><![CDATA[<p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; "><o:p>&nbsp;</o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">El espesor septal se asoci&oacute; directa y significativamente con AF de MH (con AF 25,4 &plusmn; 1,42; sin AF 21,1 &plusmn; 0,67 mm; p=0,009) e inversamente con el antecedente de HTA (hipertensos 19,6 &plusmn; 2,99 mm; no hipertensos 24 &plusmn; 4,71 mm; p=0,001). El espesor de la pared posterior (PP) no se diferenci&oacute; seg&uacute;n presencia o no de HTA (12,3 &plusmn; 1,37 vs 12,4 &plusmn; 3,52 mm; p=0,863).&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">La FEVI result&oacute; normal en 51 pacientes (98%).&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">En 30 pacientes (58%) se objetiv&oacute; obstrucci&oacute;n, pero solo en 13 (25%) se practicaron maniobras para detectar obstrucci&oacute;n latente. La media del gradiente pico registrado fue de 91 mmHg. La obstrucci&oacute;n intraventricular se correlacion&oacute; en forma significativa con la CF (p=0,042; </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"> <a href="#graf_2">figura 4</a></span><span style="font-size: 10pt; font-family: Verdana; "> y </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"> <a href="#tab_5">tabla 5</a></span><span style="font-size: 10pt; font-family: Verdana; ">).</span></p>         <p style="margin: 0cm 0cm 0.0001pt;">&nbsp;</p>         <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; "><a name="graf_2"></a><img style="width: 283px; height: 316px;" alt="" src="/img/revistas/ruc/v30n3/3a07g2.JPG"></span></p>        <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">&nbsp;</span></p>         <p style="margin: 0cm 0cm 0.0001pt;"><a name="tab_5"></a><img style="width: 536px; height: 445px;" alt="" src="/img/revistas/ruc/v30n3/3a07t5.JPG"></p>         <p style="margin: 0cm 0cm 0.0001pt;"><span style="font-size: 10pt; font-family: Verdana;"><o:p>&nbsp;</o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Se observ&oacute; una paciente de 16 a&ntilde;os muy sintom&aacute;tica, con m&aacute;xima hipertrofia septal media y de &aacute;pex y severa estenosis medioventricular, con participaci&oacute;n similar del ventr&iacute;culo derecho (VD) (</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#fig_3">figura 5</a></span><span style="font-size: 10pt; font-family: Verdana; ">)<i>.</i> Los dem&aacute;s pacientes presentaron la obstrucci&oacute;n en el TSVI.</span></p>         ]]></body>
<body><![CDATA[<p style="margin: 0cm 0cm 0.0001pt;">&nbsp;</p>         <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; "><a name="fig_3"></a><img style="width: 284px; height: 503px;" alt="" src="/img/revistas/ruc/v30n3/3a07f3.JPG"></span></p>         <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">&nbsp;<br style="">      </span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Se comprob&oacute; alg&uacute;n grado de insuficiencia mitral (IM) en 31 pacientes (60%): grado 0 (ausente) en 21 (40%); grado 1 (leve) en 18 (35%), grado 2 (moderada) en 11 (21%) y grado 3 (severa) en 2 (4%). Hubo una correlaci&oacute;n significativa entre la IM y la obstrucci&oacute;n cuando se la dividi&oacute; en subgrupos de acuerdo con su severidad (grados 0-1 46,2%; grados 2-3 92,3%, p=0,004; </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"> <a href="#graf_3">figura 6</a></span><span style="font-size: 10pt; font-family: Verdana; ">).</span></p>        <p style="margin: 0cm 0cm 0.0001pt;">&nbsp;</p>         <p style="margin: 0cm 0cm 0.0001pt;"><a name="graf_3"></a><img style="width: 275px; height: 300px;" alt="" src="/img/revistas/ruc/v30n3/3a07g3.JPG"><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; "><o:p>&nbsp;</o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Siete pacientes (13%) tienen una cardiopat&iacute;a asociada (isqu&eacute;mica en tres, prolapso de v&aacute;lvula mitral en tres, y aneurisma del septum interauricular en uno).</span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"><span style="font-size: 10pt; font-family: Verdana;"><o:p>&nbsp;</o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"><b> <span style="font-size: 10pt; font-family: Verdana; ">Seguimiento&nbsp;</span></b><span style="font-size: 10pt; font-family: Verdana; "> </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           ]]></body>
<body><![CDATA[<p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Fueron seguidos 46 pacientes (88,5%) durante un per&iacute;odo de 4 a 50 meses (media de 31,7 &plusmn; 12,5 meses). Fallecieron cuatro mujeres: una por accidente cerebrovascular (ACV) de naturaleza no definida; otra por hematoma subdural; otra por insuficiencia card&iacute;aca (IC), y otra por causa no aclarada, aunque el DAI que ten&iacute;a implantado no registr&oacute; <span class="GramE">arritmias agudas previo</span> al deceso. No se encontr&oacute; correlaci&oacute;n significativa de la mortalidad con ninguna de las variables exploradas (</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#tab_6">tabla 6</a></span><span style="font-size: 10pt; font-family: Verdana; ">).</span></p>         <br>     <a name="tab_6"></a><img style="width: 480px; height: 532px;" alt="" src="/img/revistas/ruc/v30n3/3a07t6.JPG">     <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; "><o:p>&nbsp;</o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">De 42 sobrevivientes reevaluados, 24 (57%) se encuentran asintom&aacute;ticos y 18 (43%) presentan s&iacute;ntomas: 15 <span class="GramE">disnea</span>, 1 &aacute;ngor y 4 episodios sincopales. La comparaci&oacute;n de la proporci&oacute;n de sintom&aacute;ticos al inicio (69%) y al final del seguimiento (43%) muestra una mejor&iacute;a significativa (p=0,008 para test de igualdad de proporciones; p=0,001 para test de Mc Nemar). La evoluci&oacute;n de la CF de los 42 pacientes se muestra en la </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"> <a href="#fig_4">figura 7</a></span><span style="font-size: 10pt; font-family: Verdana; ">.</span></p>         <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana"><a name="fig_4"></a><img style="width: 263px; height: 195px;" alt="" src="/img/revistas/ruc/v30n3/3a07f4.JPG">&nbsp;</span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; "><o:p>&nbsp;</o:p></span></p>              <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Durante el seguimiento se indic&oacute; implante de DAI en tres pacientes: dos por episodio sincopal con demostraci&oacute;n de taquicardia ventricular no sostenida (TVNS) en el Holter y uno por episodio sincopal de causa no aclarada en paciente con antecedentes de MS de cuatro hermanos. Dos fueron implantados; uno no acept&oacute; el procedimiento.&nbsp; </span> <o:p></o:p><span style="font-size: 10pt; font-family: Verdana;"><o:p>&nbsp;</o:p></span></p>             <p style="margin: 0cm 0cm 0.0001pt;"><b>  <multicol gutter="18" cols="2"></multicol> <span style="font-size: 10pt; font-family: Verdana; ">  Discusi&oacute;n&nbsp;</span><o:p></o:p></b></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana">&nbsp;</span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           ]]></body>
<body><![CDATA[<p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">El proyecto original del RUMHI previ&oacute; el reclutamiento de m&aacute;s de 100 pacientes, expectativa no cumplida a pesar de los esfuerzos realizados en dise&ntilde;o, convocatoria y difusi&oacute;n, ya que depend&iacute;a de la colaboraci&oacute;n de la comunidad cardiol&oacute;gica, que result&oacute; limitada. No obstante tratarse de una poblaci&oacute;n peque&ntilde;a, el haberse comportado como se describe en la literatura en la mayor&iacute;a de los aspectos analizados (distribuci&oacute;n etaria, rasgos ecocardiogr&aacute;ficos, s&iacute;ntoma predominante, correlaci&oacute;n positiva entre obstrucci&oacute;n y disnea, frecuencia de FA y mortalidad), permite considerar como probablemente ciertas algunas observaciones adicionales.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>                <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">La mayor&iacute;a de individuos con MH son asintom&aacute;ticos y tienen una expectativa de vida <span class="GramE">normal<a name="-28"></a><a name="-29"></a><a name="-30"></a><sup>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#4">4</a></span><span style="font-size: 10pt; font-family: Verdana; ">,</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#28">28-30</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">. Dos tercios de nuestros pacientes ten&iacute;an s&iacute;ntomas al ingresar al registro, siendo el m&aacute;s frecuente, como se ha <span class="GramE">se&ntilde;alado<sup>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#29">29</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, la disnea de esfuerzo, que se present&oacute; en m&aacute;s de la mitad de los casos, seguida por el &aacute;ngor y en menor proporci&oacute;n por el s&iacute;ncope. Dada la metodolog&iacute;a de reclutamiento, nuestra serie proviene de diferentes servicios terciarios, incluyendo pacientes de una policl&iacute;nica de portadores de MH e individuos que recibieron procedimientos invasivos, y no representa el espectro global de los afectados por esta patolog&iacute;a. De acuerdo a informes previos, pueden constituir una subpoblaci&oacute;n m&aacute;s sintom&aacute;tica y de mayor riesgo para eventos adversos, incluyendo <span class="GramE">mortalidad<sup><a name="-31"></a><a name="-32"></a><a name="-33"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#31">31-33</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">. La distribuci&oacute;n por sexos mostr&oacute; un definido predominio femenino<b> </b>(58% vs 42%), diferente al equilibrio esperable considerando el patr&oacute;n hereditario de la <span class="GramE">enfermedad<sup><a name="-34"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#34">34</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, aunque esto bien puede depender del azar dado el bajo n&uacute;mero de pacientes. Como est&aacute; descrito, las edades abarcaron un amplio espectro, desde individuos en edad pedi&aacute;trica hasta sujetos a&ntilde;osos, ya que a pesar de la existencia de un per&iacute;odo de latencia para el desarrollo de la hipertrofia, la MH puede diagnosticarse a cualquier <span class="GramE">edad<sup><a name="-35"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#35">35</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">.<sup> </sup>Se observ&oacute; una configuraci&oacute;n bimodal. Diversas caracter&iacute;sticas cl&iacute;nicas se distribuyeron en correspondencia con distinta media etaria (</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#tab_2">tabla 2</a></span><span style="font-size: 10pt; font-family: Verdana; ">). En base a ello, sin perder de vista el bajo n&uacute;mero de pacientes, ciertas correlaciones permitir&iacute;an dividir a nuestra poblaci&oacute;n en dos grupos: una cohorte m&aacute;s joven de predominio masculino, con mayor frecuencia de MH detectable en consangu&iacute;neos y prevalencia m&iacute;nima de HTA, con mayor hipertrofia septal aunque con menor frecuencia de s&iacute;ntomas, y otra m&aacute;s a&ntilde;osa con atributos opuestos<span class="GramE">.</span> Podr&iacute;a especularse en un sustrato gen&eacute;tico para explicarlo, ya que diferentes prote&iacute;nas mutantes pueden determinar divergencias en la edad de aparici&oacute;n de la hipertrofia, su severidad, patr&oacute;n de distribuci&oacute;n y expresi&oacute;n cl&iacute;nica, incluyendo s&iacute;ntomas y riesgo de <span class="GramE">MS<sup><a name="-38"></a><a name="-39"></a><a name="-40"></a><a name="-41"></a><a name="-42"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#38">38-42</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p>&nbsp;<o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;">     <multicol gutter="18" cols="2"></multicol>     <span style="font-size: 10pt; font-family: Verdana; ">     El AF de MH no result&oacute; tan com&uacute;n como     podr&iacute;a esperarse de acuerdo a la herencia de la enfermedad, pero el de     MS en consangu&iacute;neos se present&oacute; en m&aacute;s de la cuarta parte     de los pacientes (27%). El hallazgo de una relaci&oacute;n significativa entre     los AF de MS y el s&iacute;ncope (p= 0,033) refuerza la consideraci&oacute;n de     ]]></body>
<body><![CDATA[dicho s&iacute;ntoma dentro de los principales factores de riesgo de MS en los     pacientes con <span class="GramE">MH<sup><a name="-43"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#43">43</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">.<i> </i>Un     problema de particular importancia, tanto para el diagn&oacute;stico individual     de un caso como para su inclusi&oacute;n en un registro, es la posible     coexistencia con HTA, ya que la definici&oacute;n de MH exige la     exclusi&oacute;n de una sobrecarga hemodin&aacute;mica que explique la     hipertrofia observada. La gu&iacute;a de la <span class="GramE">ESC<sup><a name="-44"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#44">44</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">     reconoce que en la pr&aacute;ctica cl&iacute;nica el diagn&oacute;stico     diferencial entre la cardiopat&iacute;a hipertensiva y la MH asociada a HTA     puede resultar un desaf&iacute;o, y en la literatura existen discrepancias     ]]></body>
<body><![CDATA[acerca de c&oacute;mo considerar la HTA en el contexto de la MH. El antecedente     de HTA se ha utilizado como un criterio de exclusi&oacute;n para el diagn&oacute;stico     de <span class="GramE">MH<sup><a name="-45"></a><a name="-46"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#45">45</a></span><span style="font-size: 10pt; font-family: Verdana; ">,</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#46">46</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, pero la     mayor&iacute;a de los investigadores incluyen en sus estudios a pacientes con     HTA si consideran que el grado de hipertrofia es mayor del que ser&iacute;a     esperable de la hipertensi&oacute;n aislada</span><sup><span style="font-size: 10pt; font-family: Verdana; "><a name="-47"></a><a name="-48"></a><a name="-49"></a><a name="-50"></a>(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#11">11</a></span><span style="font-size: 10pt; font-family: Verdana; ">,</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#47">47-50</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, criterio     adoptado en nuestro registro. La HTA leve a moderada frecuentemente coexiste     con la MH, predominantemente en <span class="GramE">ancianos<sup><a name="-51"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#50">50</a></span><span style="font-size: 10pt; font-family: Verdana; ">,</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#51">51</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">.     La frecuencia de esta asociaci&oacute;n var&iacute;a entre 19,5% y 62%</span><sup><span style="font-size: 10pt; font-family: Verdana; "><a name="-52"></a><a name="-53"></a>(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#49">49</a></span><span style="font-size: 10pt; font-family: Verdana; ">,</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#51">51-53</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">     probablemente debido a los diferentes criterios diagn&oacute;sticos en     ]]></body>
<body><![CDATA[relaci&oacute;n con la HTA y a la edad de la poblaci&oacute;n estudiada. En el     trabajo de Aslam y <span class="GramE">colaboradores<sup>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#52">52</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">,     62% de sus pacientes con MH presentaba HTA, eran significativamente mayores que     los pacientes sin HTA y asociaban mayor incidencia de diabetes,     coronariopat&iacute;a y muerte no card&iacute;aca. Karam y <span class="GramE">colaboradores<sup>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#51">51</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">     encontraron asociaci&oacute;n con HTA en el 35% de sus pacientes con MH,     tambi&eacute;n m&aacute;s frecuente entre mayores de 50 a&ntilde;os. Dimitrow y     <span class="GramE">colaboradores<sup>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#53">53</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, en 123     pacientes con MH, refirieron 19,5% con HTA asociada (15,7% en los menores de 50     a&ntilde;os y 38% en los mayores). En nuestra serie coexistieron la MH y la HTA     ]]></body>
<body><![CDATA[(mayoritariamente leve) en 48%, observ&aacute;ndose tambi&eacute;n     correlaci&oacute;n directa entre la edad y la HTA (p=0). El mismo     comportamiento ocurre en la poblaci&oacute;n general, lo que aboga a favor de     que se trate de una asociaci&oacute;n de dos patolog&iacute;as. En nuestro     pa&iacute;s, el 38,7% de los adultos de entre 25 y 64 a&ntilde;os padece <span class="GramE">HTA<sup><a name="-54"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#54">54</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">. Concibi&eacute;ndolas como     dos entidades independientes, la posibilidad aleatoria de que un paciente de     mediana edad con una aut&eacute;ntica MH sea hipertenso es entonces &gt;1/3, de     modo que si adopt&aacute;ramos el criterio restrictivo estar&iacute;amos     excluyendo &gt;1/3 de las MH. Por otra parte, hay evidencia de que factores     ambientales como la dieta, la actividad f&iacute;sica y el propio     ]]></body>
<body><![CDATA[r&eacute;gimen tensional ejercen influencia sobre las caracter&iacute;sticas     fenot&iacute;picas de una MH gen&eacute;ticamente <span class="GramE">determinada<sup><a name="-55"></a><a name="-56"></a>(</sup></span></span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><sup><a href="#55">55</a><span style="font-size: 10pt; font-family: Verdana; ">,</span><a href="#56">56</a><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">.     Se sabe tambi&eacute;n que adem&aacute;s de los <i>genes primarios</i> de las     prote&iacute;nas sarcom&eacute;ricas afectadas por la mutaci&oacute;n existen <i>genes     modificadores </i>que refuerzan o aten&uacute;an la expresi&oacute;n de la     enfermedad, como el polimorfismo I/D del gen de la enzima convertidora de la     angiotensina humana, que tambi&eacute;n est&aacute; involucrado en el     desarrollo de HTA, lo que podr&iacute;a aumentar la coincidencia de ambas     patolog&iacute;as m&aacute;s all&aacute; de lo esperable seg&uacute;n la     prevalencia de cada <span class="GramE">una<sup><a name="-57"></a>(</sup></span></span><sup><a href="#41">41</a><span style="font-size: 10pt; font-family: Verdana; ">,</span><a href="#55">55</a><span style="font-size: 10pt; font-family: Verdana; ">,</span><a href="#57">57</a><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">.     ]]></body>
<body><![CDATA[Tarazi y <span class="GramE">Levy<a name="-58"></a><sup>(</sup></span></span><sup><a href="#58">58</a><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">     se&ntilde;alaron que la severidad de la hipertrofia a menudo no puede ser     relacionada con la gravedad o duraci&oacute;n de la hipertensi&oacute;n y     sugirieron que algunos pacientes pueden tener una sensibilidad mioc&aacute;rdica     predispuesta a desarrollar hipertrofia en el marco de la HTA. Ello     podr&iacute;a responder a un sustrato <span class="GramE">gen&eacute;tico<sup><a name="-59"></a>(</sup></span></span><sup><a href="#59">59</a><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">.     Otros investigadores, en cambio, han demostrado que solo una minor&iacute;a de     pacientes con hipertensi&oacute;n leve a moderada desarrollan una HVI detectable     <span class="GramE">ecocardiogr&aacute;ficamente<sup><a name="-60"></a>(</sup></span></span><sup><a href="#60">60</a><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">,     y la mayor&iacute;a de los pacientes con HVI de origen hipertensivo tiene un     ]]></body>
<body><![CDATA[espesor parietal m&aacute;ximo <b>&lt;</b>15 mm</span><sup><span style="font-size: 10pt; font-family: Verdana; "><a name="-61"></a>(</span><a href="#44">44</a><span style="font-size: 10pt; font-family: Verdana; ">,</span><a href="#61">61</a><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">. Los datos de     prevalencia de la enfermedad tambi&eacute;n indican que la HTA, un trastorno <span class="GramE">com&uacute;n<sup>(</sup></span></span><sup><a href="#54">54</a><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, no conduce     previsiblemente a cardiomiopat&iacute;a, una condici&oacute;n relativamente     rara</span><sup><span style="font-size: 10pt; font-family: Verdana; ">(</span><a href="#10">10-12</a><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><span style="font-size: 10pt; font-family: Verdana; ">.<sup>&nbsp;</sup> </span> </span> </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>     <p style="margin: 0cm 0cm 0.0001pt;">  <multicol gutter="18" cols="2"></multicol> <span style="font-size: 10pt; font-family: Verdana; ">  La hipertensi&oacute;n<sup> </sup>puede, sin<sup> </sup>embargo, ser un cofactor, si no necesariamente la causa de la remodelaci&oacute;n card&iacute;aca. En un coraz&oacute;n con MH se podr&iacute;a esperar<sup> </sup>que agravara la situaci&oacute;n, causando un aumento de masa adicional. Esta posibilidad estar&iacute;a apoyada por los hallazgos de Karam y colaboradores</span><sup><span style="font-size: 10pt; font-family: Verdana; ">(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#51">51</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, quienes encontraron que los pacientes hipertensos ten&iacute;an mayor hipertrofia de la PP que los normotensos, dato no coincidente con nuestros resultados, que m&aacute;s bien apoyan la idea de una escasa remodelaci&oacute;n secundaria esperable si la HTA es leve o moderada. M&aacute;s a&uacute;n, el espesor parietal m&aacute;ximo result&oacute; menor entre nuestros pacientes con HTA concomitante (p= 0,001). Los hallazgos de una relaci&oacute;n inversa entre el espesor septal y la presencia de HTA, as&iacute; como la ausencia de relaci&oacute;n entre esta condici&oacute;n y el espesor de la pared posterior, contribuyen a reafirmar nuestro criterio de no exclusi&oacute;n absoluta de pacientes con HTA asociada. Para evitar que la inclusi&oacute;n de hipertensos afectara la especificidad diagn&oacute;stica, en el RUMHI se consideraron, adem&aacute;s de la importancia relativa de la HTA y la hipertrofia, su asimetr&iacute;a y distribuci&oacute;n</span><sup><span style="font-size: 10pt; font-family: Verdana; "><a name="-62"></a>(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#47">47</a></span><span style="font-size: 10pt; font-family: Verdana; ">,</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#48">48</a></span><span style="font-size: 10pt; font-family: Verdana; ">,</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#62">62</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, la presencia de significativa obstrucci&oacute;n din&aacute;mica</span><sup><span style="font-size: 10pt; font-family: Verdana; ">(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#4">4</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; "> y los AF de MH</span><sup><span style="font-size: 10pt; font-family: Verdana; ">(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#44">44</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">. En ning&uacute;n caso contamos con estudios de resonancia nuclear magn&eacute;tica (RNM).&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Se han planteado diversos enfoques adicionales para diferenciar la MH de la miocardiopat&iacute;a hipertensiva, incluyendo el tipo morfol&oacute;gico de la <span class="GramE">HVI<a name="-63"></a><sup>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#63">63</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, Doppler tisular con <i>strain rate</i></span><sup><span style="font-size: 10pt; font-family: Verdana; "><a name="-64"></a><a name="-65"></a><a name="-66"></a>(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#64">64-66</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">,<i> </i>estimaci&oacute;n con Doppler de la velocidad diast&oacute;lica en las arterias septales</span><sup><span style="font-size: 10pt; font-family: Verdana; "><a name="-67"></a>(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#67">67</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, estudios metab&oacute;licos con PET y fluordeoxiglucosa</span><sup><span style="font-size: 10pt; font-family: Verdana; "><a name="-68"></a>(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#68">68</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, centellograf&iacute;a con carnitina y &aacute;cidos grasos marcados</span><sup><span style="font-size: 10pt; font-family: Verdana; "><a name="-69"></a>(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#69">69</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, y tests de regresi&oacute;n de la HVI con tratamiento</span><sup><span style="font-size: 10pt; font-family: Verdana; "><a name="-70"></a>(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#70">70</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, todos ellos de limitada aplicabilidad cl&iacute;nica. Por el contrario, la RNM se ha demostrado una herramienta de gran utilidad en los diagn&oacute;sticos positivo y diferencial de la MH, no solo con la cardiopat&iacute;a hipertensiva, sino con otras miocardiopat&iacute;as que cursan con aumento del espesor <span class="GramE">septal<sup><a name="-71"></a><a name="-72"></a><a name="-73"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#71">71-73</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">. El realce tard&iacute;o con gadolinio en los puntos de inserci&oacute;n del VD o su localizaci&oacute;n mesoparietal en los segmentos de m&aacute;ximo espesor del VI, ir&iacute;an a favor del diagn&oacute;stico de <span class="GramE">MH<sup><a name="-74"></a><a name="-75"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#74">74</a></span><span style="font-size: 10pt; font-family: Verdana; ">,</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#75">75</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">No est&aacute; claro si una enfermedad afecta, no ya la expresi&oacute;n morfol&oacute;gica card&iacute;aca, sino tambi&eacute;n la evoluci&oacute;n cl&iacute;nica de la otra. Un estudio <span class="GramE">poblacional<sup><a name="-76"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#76">76</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; "> mostr&oacute; que los portadores de MH sin HTA ten&iacute;an una mortalidad anual de 0,7%, superponible a la de la poblaci&oacute;n general ajustada por sexo y edad, que ascend&iacute;a a 5%/a&ntilde;o en los hipertensos. En el estudio de Dimitrow y <span class="GramE">colaboradores<sup>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#53">53</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, la superposici&oacute;n de HTA empeoraba la CF sustancialmente en los pacientes m&aacute;s j&oacute;venes, mientras que entre los mayores la diferencia en CF entre hipertensos y normotensos era insignificante. Por su parte, Karam y colaboradores</span><sup><span style="font-size: 10pt; font-family: Verdana; ">(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#51">51</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, estudiando una poblaci&oacute;n de 113 pacientes con MH, concluyen que, con la excepci&oacute;n de un mayor engrosamiento parietal, las caracter&iacute;sticas cl&iacute;nicas y ecocardiogr&aacute;ficas de los pacientes con hipertensi&oacute;n son indistinguibles de las de aquellos de similar edad no hipertensos. Aslam y <span class="GramE">colaboradores<sup>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#52">52</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, en cambio, no encontraron diferencias significativas ni morfol&oacute;gicas, ni en CF, entre grupos con y sin HTA asociada. De igual modo, los pacientes hipertensos de nuestro registro no mostraron diferencias significativas con los normotensos en su CF ni en la presencia de s&iacute;ntomas (p=0,722).&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">La prevalencia de FA en nuestra serie (13%), con edad promedio de 50 a&ntilde;os, es marcadamente mayor que para un rango etario similar de la poblaci&oacute;n <span class="GramE">general<sup><a name="-77"></a><a name="-78"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#77">77</a></span><span style="font-size: 10pt; font-family: Verdana; ">,</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#78">78</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; "> y algo menor que la descrita en la literatura para la MH, en el entorno de 18% a 22%</span><sup><span style="font-size: 10pt; font-family: Verdana; "><a name="-79"></a><a name="-80"></a><a name="-81"></a>(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#79">79-81</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">. La FA en la MH constituye un marcador de riesgo de ACV, discapacidad y mortalidad por insuficiencia card&iacute;aca (IC<span class="GramE">)<sup><a name="-82"></a><a name="-83"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#79">79-83</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Los datos morfol&oacute;gicos y funcionales del ecocardiograma presentan rasgos t&iacute;picos de la enfermedad.<s>&nbsp;</s> </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Como ha sido descrito, en la mayor&iacute;a de los pacientes la hipertrofia es asim&eacute;trica e involucra preferencialmente al SIV en sus segmentos <span class="GramE">basales<sup><a name="-84"></a><a name="-85"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#47">47</a></span><span style="font-size: 10pt; font-family: Verdana; ">,</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#48">48</a></span><span style="font-size: 10pt; font-family: Verdana; ">,</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#84">84</a></span><span style="font-size: 10pt; font-family: Verdana; ">,</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#85">85</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">. Se registr&oacute; comportamiento obstructivo basal en 54% de los casos, un valor superior al publicado en estudios de previos &ndash;25% en la serie de 1.101 pacientes de Maron y colaboradores</span><sup><span style="font-size: 10pt; font-family: Verdana; "><a name="-86"></a>(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#86">86</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, 27% en los 526 de Autore</span><sup><span style="font-size: 10pt; font-family: Verdana; "><a name="-87"></a>(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#87">87</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; "> y 38,5% en los 646 de Casab&eacute; y colaboradores</span><sup><span style="font-size: 10pt; font-family: Verdana; "><a name="-88"></a>(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#88">88</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">&ndash;, probablemente por sesgo de inclusi&oacute;n, con elevada proporci&oacute;n de pacientes sintom&aacute;ticos.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           ]]></body>
<body><![CDATA[<p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Debemos se&ntilde;alar que en nuestra serie solo se practicaron maniobras sensibilizadoras durante el estudio ecocardiogr&aacute;fico en la cuarta parte de ellos. Solamente en un caso la obstrucci&oacute;n no asent&oacute; a nivel del TSVI sino medio ventricular, variante reputada como <span class="GramE">rara<sup><a name="-89"></a><a name="-90"></a><a name="-91"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#89">89-91</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, que no obstante ocurre hasta en 9,4% en ciertas series</span><sup><span style="font-size: 10pt; font-family: Verdana; "><a name="-92"></a>(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#92">92</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, y se asocia con mayor discapacidad, disfunci&oacute;n ventricular, ACV y mortalidad s&uacute;bita y por IC</span><sup><span style="font-size: 10pt; font-family: Verdana; "><a name="-93"></a>(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#92">92</a></span><span style="font-size: 10pt; font-family: Verdana; ">,</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#93">93</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>             <p style="margin: 0cm 0cm 0.0001pt;">  <multicol gutter="18" cols="2"></multicol> <span style="font-size: 10pt; font-family: Verdana; ">La gu&iacute;a de la ESC 2014</span><sup><span style="font-size: 10pt; font-family: Verdana; ">(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#44">44</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; "> recomienda buscar en todos los pacientes obstrucci&oacute;n din&aacute;mica, inicialmente con Valsalva en las posiciones sentada y semisupina y, por &uacute;ltimo, si no se provoca gradiente, en ortostatismo. Estudios de grandes poblaciones de pacientes con MH han identificado una relaci&oacute;n consistente entre el gradiente en el TSVI en reposo y deterioro sintom&aacute;tico y muerte por IC y ACV </span> <sup><span style="font-size: 10pt; font-family: Verdana; "><a name="-94"></a>(</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#86">86</a></span><span class="GramE"><span style="font-size: 10pt; font-family: Verdana; ">,</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#87">87</a></span><span style="font-size: 10pt; font-family: Verdana; ">,</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#94">94</a></span></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">. En nuestra serie observamos una relaci&oacute;n estad&iacute;sticamente significativa entre la existencia de un patr&oacute;n obstructivo y la presencia de disnea (p=0,048) y CF avanzada (p= 0,042).&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">La insuficiencia mitral comparte una base fisiopatol&oacute;gica com&uacute;n con la obstrucci&oacute;n del TSVI y no sorprende que, acorde con informes <span class="GramE">previos<sup>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#8">8</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, hayamos encontrado una relaci&oacute;n directa entre la obstrucci&oacute;n suba&oacute;rtica y la severidad de la IM concomitante.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Lamentablemente no pudimos contar con datos ecocardiogr&aacute;ficos confiables de la dimensi&oacute;n de la aur&iacute;cula izquierda, otra importante variable <span class="GramE">pron&oacute;stica<sup><a name="-95"></a><a name="-96"></a><a name="-97"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#95">95-97</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Se dispuso de trazados electrocardiogr&aacute;ficos de adecuada calidad en la mayor&iacute;a de los pacientes y tanto el complejo QRS como la repolarizaci&oacute;n ventricular resultaron anormales en 77,5% y 91% de los casos, respectivamente, datos coincidentes con lo registrado en la <span class="GramE">literatura<a name="-98"></a><a name="-99"></a><a name="-100"></a><a name="-101"></a><sup>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#98">98-101</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">En tres pacientes hubo asociaci&oacute;n con enfermedad coronaria, circunstancia no infrecuente que ha sido se&ntilde;alada en varias publicaciones <span class="GramE">previas<sup><a name="-102"></a><a name="-103"></a><a name="-104"></a><a name="-105"></a><a name="-106"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#102">102-106</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">.<sup>&nbsp;</sup> </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Al cabo de 31,7 meses de seguimiento medio de 46 pacientes, cuatro fallecieron, lo que representa una mortalidad global de 8,7% o anualizada de 3,3%, comparable con series de centros terciarios que reportan una mortalidad de 3% a 6% por <span class="GramE">a&ntilde;o<sup><a name="-107"></a><a name="-108"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#107">107</a></span><span style="font-size: 10pt; font-family: Verdana; ">,</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#108">108</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">. Nuevamente el s&iacute;ntoma m&aacute;s frecuente fue la disnea, pero en una proporci&oacute;n menor (36%). El cambio experimentado en la CF se muestra en la<b> </b> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#fig_4">figura 7</a></span><span style="font-size: 10pt; font-family: Verdana; ">.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Comparando el estado sintom&aacute;tico basal con el evolutivo en los 42 sobrevivientes se observ&oacute; una diferencia favorable estad&iacute;sticamente significativa (p=0,001), cuya interpretaci&oacute;n podr&iacute;a radicar en un efecto positivo del tratamiento <span class="GramE">realizado<sup><a name="-109"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#109">109</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">, o bien en un sesgo de selecci&oacute;n natural por fallecimiento de los m&aacute;s afectados. Sin embargo, de los cuatro pacientes fallecidos, dos estaban al comienzo del estudio en CF I y uno en CF II, y solo uno de ellos falleci&oacute; por una causa claramente atribuible o relacionada con la enfermedad, como es la IC. Adem&aacute;s, el &uacute;nico con antecedentes arr&iacute;tmicos no mostr&oacute; arritmias agudas en su DAI.<s>&nbsp;</s> </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">En tres pacientes surgi&oacute; la indicaci&oacute;n de implante de cardiodesfibrilador autom&aacute;tico a causa de su elevado riesgo de MS. Este requerimiento no es contradictorio con la aceptable CF promedio de la poblaci&oacute;n, porque el riesgo de MS en la MH no guarda relaci&oacute;n con el grado de limitaci&oacute;n funcional, sino que depende de otros factores cuyo valor relativo ha intentado sistematizarse en numerosos trabajos originales y gu&iacute;as de manejo de la <span class="GramE">enfermedad<sup><a name="-110"></a><a name="-111"></a><a name="-112"></a><a name="-113"></a><a name="-114"></a><a name="-115"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#4">4</a></span><span style="font-size: 10pt; font-family: Verdana; ">,</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#44">44</a></span><span style="font-size: 10pt; font-family: Verdana; ">,</span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#110">110-115</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">. El brusco e inesperado deceso de individuos j&oacute;venes previamente asintom&aacute;ticos y de deportistas con estado de salud en apariencia excelente constituye un lamentable recordatorio de que la MS puede ser el primer s&iacute;ntoma de la <span class="GramE">enfermedad<sup><a name="-116"></a><a name="-117"></a><a name="-118"></a><a name="-119"></a>(</sup></span></span><sup><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#116">116-119</a></span><span style="font-size: 10pt; font-family: Verdana; ">)</span></sup><span style="font-size: 10pt; font-family: Verdana; ">.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p class="MsoNormal"><span style="font-size: 10pt; font-family: Verdana;"><o:p>&nbsp;</o:p></span></p>           ]]></body>
<body><![CDATA[<p style="margin: 0cm 0cm 0.0001pt;"><b> <span style="font-size: 10pt; font-family: Verdana; ">Conclusiones&nbsp;</span><o:p></o:p></b></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana">&nbsp;</span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">1)&nbsp;&nbsp;&nbsp;&nbsp;El RUMHI es el primer estudio nacional del perfil cl&iacute;nico-ecocardiogr&aacute;fico de una poblaci&oacute;n con MH, con un seguimiento a mediano plazo del estado sintom&aacute;tico y la sobrevida de los pacientes. Pese al escaso n&uacute;mero reclutado, muestra una poblaci&oacute;n uruguaya con MH de similares caracter&iacute;sticas a las descritas en otros pa&iacute;ses: niveles etarios, hipertrofia predominante en segmentos basales del SIV, relaci&oacute;n positiva entre la obstrucci&oacute;n din&aacute;mica del TSVI y la disnea (s&iacute;ntoma m&aacute;s frecuente) y entre la obstrucci&oacute;n y la IM, elevada frecuencia de FA y mortalidad. Se diferenci&oacute; en mostrarse mayoritariamente sintom&aacute;tica y con frecuente obstrucci&oacute;n din&aacute;mica del tracto de salida, probablemente por sesgo de inclusi&oacute;n, observ&aacute;ndose el s&iacute;ncope particularmente en aquellos pacientes con AF de MS.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">2)&nbsp;&nbsp;&nbsp;&nbsp;La coexistencia con HTA es frecuente (48%), pero esta asociaci&oacute;n no se relacion&oacute; con una mayor hipertrofia ventricular ni con peor CF, reforzando el concepto de que no debe descartarse la presencia de MH solo por el antecedente de HTA.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">3)&nbsp;&nbsp;&nbsp;&nbsp;En los estudios ecocardiogr&aacute;ficos se detectaron deficiencias en la b&uacute;squeda de obstrucci&oacute;n din&aacute;mica latente.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>             <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">4)&nbsp;&nbsp;&nbsp;&nbsp;La poblaci&oacute;n seguida (88,5%) mostr&oacute; mejor&iacute;a de la CF, en probable relaci&oacute;n con el tratamiento instaurado.<b>&nbsp;</b> </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p class="MsoNormal"><span style="font-size: 10pt; font-family: Verdana;"><o:p>&nbsp;</o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"><b> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">Bibliograf&iacute;a&nbsp;</span></b><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"> </span> <o:p></o:p></p>           <p style="margin: 0cm 0cm 0.0001pt;"><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p>&nbsp;</o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="1"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-1">1</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Maron B, Towbin J A, Thiene G, Antzelevitch C, Corrado D, Arnett D, et al.</span> Contemporary definitions and classification of the cardiomyopathies. <span class="GramE">An American Heart Association Scientific Statement from the Council on Clinical Cardiology, Heart Failure and Transplantation Committee; Quality of Care and Outcomes Research and Functional Genomics and Translational Biology Interdisciplinary Working Groups; and Council on Epidemiology and Prevention.</span> Circulation 2006; 113: 1807-1816.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="2"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-2">2</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Watkins H, Ashrafian H, McKenna W. </span>The genetics of hypertrophic cardiomyopathy: Teare redux. Heart 2008; 94: 1264-1268.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="3"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-3">3</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Konno T, Chang S, Seidman JG, Seidman CE. <span class="GramE">Genetics of hypertrophic cardiomyopathy.</span></span> Curr Opin Cardiol 2010; 25: 205-209.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="4"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-4">4</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Gersh B, Maron B, Bonow R, Dearani J, Fifer M, Link M, et al. </span>2011 ACCF/AHA Guideline for the Diagnosis and Treatment of Hypertrophic Cardiomyopathy. <span class="GramE">A Report of the <st1:place w:st="on"><st1:placename w:st="on">American</st1:placename> <st1:placetype w:st="on">College</st1:placetype></st1:place> of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines.</span> J Am Coll Cardiol 2011; 58: e212-60.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="5"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-5">5</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Watkins H, Thierfelder L, Hwang D, McKenna W, Seidman J, Seidman C.</span> Sporadic hypertrophic cardiomyopathy due to de novo myosin mutations. J Clin Invest 1992; 90: 1666-1671.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="6"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-6">6</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Olson T, Doan T, Kishimoto N, Whitby F, Ackerman M, Fananapazir L. </span>Inherited and de novo mutations in the cardiac actin gene cause hypertrophic cardiomyopathy. <span class="GramE">J Mol Cell cardiol 2000; 32: 1687-1694.    </span>&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="7"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-7">7</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Maron M, Olivotto I, Zenovich A, Link M, Pandian N, Kuvin J, et al.</span> Hypertrophic cardiomyopathy is predominantly a disease o left ventricular outflow tract obstruction. Circulation 2006; 114: 2232-2239.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="8"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-8">8</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Yu E H, Omran A, Wigle E, Williams W, Siu S, Rakowsky H. </span>Mitral regurgitation in hypertrophic obstructive cardiomyopathy: relation with obstruction and relief with myectomy. 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Eur J Echocardiogr 2009; 10: 9-14&nbsp;     </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="10"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-10">10</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Maron B, Gardin J, Flack J, Gidding S, Kurosaki T, Bild D. </span>Prevalence of hypertrophic cardiomyopathy in a general population of young adults. <span class="GramE">Echocardiographic analysis of 4111 subjects in the CARDIA Study.</span> <span class="GramE">Circulation 1995; 92: 785-789.    </span>&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="11"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-11">11</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Maron B, Mathenge R, Casey S, Poliac L, Longe T. </span>Clinical profile of hypertrophic cardiomyopathy identified de novo in rural communities. J Am Coll Cardiol 1999, 33: 1590-1595.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="12"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-12">12</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Zou Y, Song L, Wang Z, Ma A, Liu T, Gu H, et al.</span> Prevalence of idiopathic hypertrophic cardiomyopathy in China: A population-based echocardiographic analysis 0f 8080 adults. <span class="GramE">The Am J Medicine 2004; 116: 14-18.    </span>&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="13"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-13">13</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Fananapazir L, Epstein N. </span>Prevalence of hypertrophic cardiomyopathy and limitations of screening methods. <span class="GramE">Circulation 1995; 92: 700-704.    </span>&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="14"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-14">14</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Semsarian C, Ingles J, GenCouns D, Maron M, Maron B. </span><span class="GramE">New perspectives on the prevalence of hypertrophic cardiomyopathy.</span> </span> <span style="font-size: 10pt; font-family: Verdana; ">J Am Coll Cardiol 2015; 65: 1249-1254.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; "><a name="15"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#-15">15</a></span><span style="font-size: 10pt; font-family: Verdana; ">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Instituto Nacional de Estad&iacute;stica, Uruguay. </span>Resultados del Censo de Poblaci&oacute;n 2011: poblaci&oacute;n, crecimiento y estructura por sexo y edad. [Internet]. Uruguay: INE; 2011 [consultado 4 Nov 2015]. Disponible en: </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"> <a href="http://www.ine.gub.uy">http://www.ine.gub.uy</a></span><span style="font-size: 10pt;     font-family: Verdana; "> &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="16"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-16">16</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Wigle ED.</span> <span class="GramE">The diagnosis of hypertrophic cardiomyopathy.</span> Heart 2001; 86: 709-714.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="17"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-17">17</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Rickers M, Wilker N, Jerosh-Herold M, Casey S, Panse P, Panse N, et al.</span> Utility of cardiac magnetic resonance imaging in the diagnostic of hypertrophic cardiomyopathy. Circulation 2005; 112: 855-861.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="18"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-18">18</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Maron M, Maron B, Harrigan C, Buros J, Gibson C, Olivotto I, et al.</span> Hypertrophic cardiomyopathy phenotype revisited after 50 years with cardiovascular magnetic resonance. J Am Coll Cardiol 2009; 54: 220-228.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="19"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-19">19</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Dumont C, Monserrat L, Soler R, Rodr&iacute;guez E, Fern&aacute;ndez X, Peteiro J, et al.</span> Interpretation of electrocardiographic abnormalities in hypertrophic cardiomyopathy with Cardiac magnetic resonance. 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<body><![CDATA[<!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="22"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-22">22</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Spirito P, Autore C, Formisano F, Egidy Assenza G, Biagini E, Haas T, et al.</span> Risk of sudden death and outcome in patients with hypertrophic cardiomyopathy with benign presentation and without risk factors. Am J cardiol 2014; 113: 1550-<span class="GramE">1555.    </span>&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="23"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-23">23</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Maron BJ, Casey SA, Chan RH, Garberich RF, Rowin EJ, Maron ES. </span><span class="GramE">Independent Assessment of the European Society of Cardiology Sudden Death Risk Model for Hypertrophic Cardiomyopathy.</span> <span class="GramE">Am J Cardiol.</span> 2015 Sep 1; 116(5):757-64. <span class="GramE">doi</span>: 10.1016/j. amjcard.2015.05.047. Epub 2015 Jun 4&nbsp;     </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="24"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-24">24</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Olivotto I, Cecchi F.</span> <span class="GramE">The epidemiologic evolution and present perception of hypertrophic cardiomyopathy.</span> </span> <span style="font-size: 10pt; font-family: Verdana; ">Ital Heart J 2003; 4: 596-601.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; "><a name="25"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#-25">25</a></span><span style="font-size: 10pt; font-family: Verdana; ">.<span style="">&nbsp;&nbsp;&nbsp;&nbsp;Estigarribia J, Vidal I, B&aacute;ez A, Vidal L.</span> Miocardiopat&iacute;a hipertr&oacute;fica. Aspectos conceptuales de la enfermedad y fundamentos del Registro Uruguayo de Miocardiopat&iacute;a Hipertr&oacute;fica. </span> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">Rev Urug Cardiol 2011; 26: 27-37.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="26"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-26">26</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Kampmann C, Wiethoff CM, Wenzel A, Stolz G, Betancor M, Wippermann CF, et al.</span> Normal values of M mode echocardiographic measures of more than 2000 healthy infants and children in Central Europe. Heart 2000; 83: 667-672.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           ]]></body>
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<body><![CDATA[<!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="37"></a>37.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Kubo T, Kitaoka H, Okawa M, Nishinaga M, Doi Y.</span> Hypertrophic cardiomyopathy in the elderly. Geriatr Gerontol 2010; 10: 9-16.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="38"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-38">38</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Niimura H, Patton K, McKenna W, Soults J, Maron B, Seidman J G et al.</span> Sarcomere protein gene mutations in hypertrophic cardiomyopathy of the elderly. Circulation 2002; 105: 446-451.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="39"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-39">39</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">McKenna W, Coccolo F, Elliot P. </span>Genes and disease expression in hypertrophic cardiomyopathy. <span class="GramE">Commentary.</span> <span class="GramE">The Lancet 1998; 352: 1162-1163.    </span>&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="40"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-40">40</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Varnava A, Elliot P, Baboonian C, Davidson F, Davies M, McKenna W.</span> Hypertrophic cardiomyopathy. Histopathological features of sudden death in cardiac troponin T disease. Circulation 2001; 104: 1380-1384.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="41"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-41">41</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Chung MW, Tsoutsman T, Semsarian C. </span>Hypertrophic cardiomyopathy: from gene defect to clinical disease. Cell Res 2003; 13: 9-20.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           ]]></body>
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<body><![CDATA[<!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="52"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-52">52</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Aslam F, Haque A, Foody J A, Shirani J. </span>The frequency and functional impact of overlapping hypertension on hypertrophic cardiomyopathy: a single-center experience. <span class="GramE">J Clin Hypertens (<st1:city w:st="on"><st1:place w:st="on">Greenwich</st1:place></st1:city>) 2010; 12.</span> <span class="GramE">240-245.    </span>&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="53"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-53">53</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Dimitrow P, Czarnecka D, Kawecka-Jaszcz K, Dubiel JS.</span> The frequency and functional impact of hypertension overlapping on hypertrophic cardiomyopathy: comparison between older and younger patients. </span><span style="font-size: 10pt; font-family: Verdana; ">J Human Hypertension 1998; 12: 633-634.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; "><a name="54"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"><a href="#-54">54</a></span><span style="font-size: 10pt; font-family: Verdana; ">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Ministerio de Salud P&uacute;blica.</span> 2a Encuesta nacional de factores de riesgo de enfermedades cr&oacute;nicas no transmisibles [Internet]. 2015 [consultado 4 Nov 2015]. Montevideo: MSP. Disponible en: </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);"> <a href="http://www.msp.gub.uy">http://www.msp.gub.uy</a></span><span style="font-size: 10pt;     font-family: Verdana; ">&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="55"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-55">55</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Alcalai R, Seidman J, Seidman C.</span> Genetic basis of hypertrophic cardiomyopathy. <span class="GramE">From bench to the clinics.</span> J Cardiovasc Electrophysiol 2008; 19: 104-110.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="56"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-56">56</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Keren A, Syrris P, McKenna W.</span> Hypertrophic cardiomyopathy: the genetics determinants of clinical disease expression. Nature Clin Pract Cardiovasc Med 2008; 5: 158-168.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           ]]></body>
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<body><![CDATA[<p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="93"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-93">93</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Efthimiadis GK, Pagourelias ED, Parcharidou D, Gossios T, Kamperidis V, Theofilogiannakos EK, et al.</span> Clinical characteristics and natural history of hypertrophic cardiomyopathy with midventricular obstruction. Circ J 2013; 77:2366&ndash;2374.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="94"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-94">94</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Maron B, Maron J, Wigle E, Braunwald E.</span> The 50-year history, controversy and clinical implications of left ventricular outflow tract obstruction in hypertrophic cardiomyopathy: From idiopathic hypertrophic subaortic stenosis to hypertrophic cardiomyopathy. J Am Coll Cardiol 2009; 54: 191-200.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="95"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-95">95</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Nistri S, Olivotto I, Betocchi S, Losi MA, Valsecchi G, Pinamonti B, et al.</span> Prognostic significance of left atrial size in patients with hypertrophic cardiomyopathy (from the Italian Registry for Hypertrophic Cardiomyopathy). Am J Cardiol 2006; 98: 960&ndash;<span class="GramE">965.</span>&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="96"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-96">96</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Yang Woo-Ing, Shim CI, Kim YJ, Kim Sung-Ai, Rhee SJ, Choi Eui-Young, et al.</span> Left atrial volume index: A predictor of adverse outcome in patients with hypertrophic cardiomyopathy. J Am Soc Echocardiogr 2009; 22: 1338-1343.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="97"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-97">97</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Losi MA, Betocchi S, Barbati G, Parisi V, Tocchetti C, Pastore F, et al.</span> Prognostic significance of left atrial volume dilatation in patients with hypertrophic cardiomyopathy. J Am Soc Echocardiogr 2009; 22: 76-81.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="98"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-98">98</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Savage D, Seides SF, Clark C, Henry W, Maron B, Robinson F, et al. </span>Electrocardiographic findings in patients with obstructive and nonobstructive hypertrophic cardiomyopathy. <span class="GramE">Circulation 1978; 58: 402-408.    </span>&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           ]]></body>
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<body><![CDATA[<!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="114"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-114">114</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.&nbsp;&nbsp;&nbsp;&nbsp;<span style="">Adabag S, Maron B, Appelbaum E, Harrigan C, Buros J, Gibson M, et al.</span> Occurrence and frequency of arrhythmias in hypertrophic cardiomyopathy in relation to delayed enhancement on cardiovascular magnetic resonance. J Am Coll Cardiol 2008; 51: 1369-1374.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="115"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-115">115</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.<span style="">&nbsp;&nbsp;&nbsp;&nbsp;O&rsquo;Mahony C, Jichi F, Pavlou M, Monserrat L, Anastasakis A, Rapezzi C, et al.</span> <span class="GramE">A novel clinical risk prediction model for sudden cardiac death in hypertrophic cardiomyopathy (HCM Risk-SCD).</span> Eur Heart J 2014; 35: 2010-2020 doi: 10.1093/eurheartj/eht439.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"><span class="GramE"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="116"></a></span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-116">116</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.<span style="">&nbsp;&nbsp;&nbsp;&nbsp;Maron B. </span>Hypertrophic cardiomyopathy and other causes of sudden cardiac death in young competitive athletes, with considerations for preparticipation screening and criteria for disqualification.</span></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"> Cardiol Clin 2007; 25: 399-414. doi:10.1016/j.ccl.2007.07.006&nbsp;     </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="117"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-117">117</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.<span style="">&nbsp;&nbsp;&nbsp;&nbsp;Rowland T.</span> Sudden unexpected death in young athletes: reconsidering &ldquo;Hypertrophic Cardiomyopathy&rdquo;. Pediatrics 2009; 123: 1217-1222.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="118"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-118">118</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.<span style="">&nbsp;&nbsp;&nbsp;&nbsp;Corrado D, Basso C, Schiavon M, Thiene G. </span>Screening for hypertrophic cardiomyopathy in young athletes. N Engl J Med 1998; 339: 364-369.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;" lang="EN-US"><o:p></o:p></span></p>           <!-- ref --><p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; " lang="EN-US"><a name="119"></a> </span><span style="font-size: 10pt; font-family: Verdana; color: rgb(31, 26, 23);" lang="EN-US"><a href="#-119">119</a></span><span style="font-size: 10pt; font-family: Verdana; " lang="EN-US">.<span style="">&nbsp;&nbsp;&nbsp;&nbsp;Panhuyzen-Goedkoop N, Verheugt F.</span> Sudden cardiac death due to hypertrophic cardiomyopathy can be reduced by pre-participation cardiovascular screening in young athletes. </span> <span style="font-size: 10pt; font-family: Verdana; ">Editorial. Eur Heart J 2006; 27: 2152-2153.    &nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           ]]></body>
<body><![CDATA[<p class="MsoNormal"><span style="font-size: 10pt; font-family: Verdana;"><o:p>&nbsp;</o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"><b> <span style="font-size: 10pt; font-family: Verdana; ">Ap&eacute;ndice&nbsp;</span></b><span style="font-size: 10pt; font-family: Verdana; "> </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Impulsados por las autoridades de la SUC del a&ntilde;o 2009, se realizaron reiterados llamados abiertos a trav&eacute;s de la lista de correos electr&oacute;nicos de socios para incorporar a todos los colegas interesados en trabajar en el proyecto. Estos fueron, en orden alfab&eacute;tico, los Dres. &Aacute;lvaro B&aacute;ez, Eduardo Benkel, Alejandro Cuesta, A&iacute;da De Luca, Gabriel Echegaray, Natalia Esmite, Jorge Estigarribia, Bettina Frugoni, M&oacute;nica Giambruno, Alejandra Machado, Cristina Mart&iacute;nez, Silvia Mato, Carlos Peluffo, Jos&eacute; P&eacute;rez, Nelson Pizzano, Edgardo Sandoya, In&eacute;s Vidal, Luis Vidal y Fernando Wajner.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">En agosto de 2010, fueron designados como coordinadores del Registro los Dres. &Aacute;lvaro B&aacute;ez, Jorge Estigarribia, In&eacute;s Vidal y Luis Vidal, siendo designada la Dra. In&eacute;s Vidal como investigadora responsable ante la Comisi&oacute;n Nacional de &Eacute;tica en Investigaci&oacute;n. Los Dres. &Aacute;lvaro B&aacute;ez e In&eacute;s Vidal, en su condici&oacute;n de ecocardiografistas, fueron adem&aacute;s los encargados, en caso de duda de cumplimiento con los criterios de inclusi&oacute;n al Registro, de revisar el ecocardiograma presentado.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Los colegas que remitieron casos finalmente aceptados e incluidos fueron designados m&eacute;dicos colaboradores; la lista completa por orden alfab&eacute;tico es la siguiente:<i>&nbsp;</i> </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>           <p style="margin: 0cm 0cm 0.0001pt;"> <span style="font-size: 10pt; font-family: Verdana; ">Beatriz Ans&iacute;n, &Aacute;lvaro B&aacute;ez, Gerard Burdiat, A&iacute;da De Luca, Guillermo Dermit, Jorge Estigarribia, M&oacute;nica Giambruno, Ricardo Lorenzo, Mar&iacute;a Alejandra Machado, Ruben Madera, Florencia Maglione, Silvia Mato, F&eacute;lix Rivedieu, Marcelo Santoro, Alicia Torterolo, Horacio V&aacute;zquez, In&eacute;s Vidal y Luis Vidal.&nbsp; </span><span style="font-size: 10pt; font-family: Verdana;"><o:p></o:p></span></p>             <p style="margin: 0cm 0cm 0.0001pt;">  <multicol gutter="18" cols="2"></multicol> <span style="font-size: 10pt; font-family: Verdana; ">  Los pacientes incluidos proceden de los departamentos de Canelones, Florida, Maldonado, Montevideo y Paysand&uacute;.<i>&nbsp;</i> </span><o:p></o:p></p>         </div>            ]]></body><back>
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