{"id":57793,"date":"2018-03-09T22:45:36","date_gmt":"2018-03-09T22:45:36","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/el-corazon-en-el-anciano-aspectos-ecocardiograficos\/"},"modified":"2018-03-09T22:45:36","modified_gmt":"2018-03-09T22:45:36","slug":"el-corazon-en-el-anciano-aspectos-ecocardiograficos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/medicina-interna\/el-corazon-en-el-anciano-aspectos-ecocardiograficos\/","title":{"rendered":"El corazon en el anciano. aspectos ecocardiograficos."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Vicente Barriales Alvarez <\/strong><\/h2>\n<p>El proceso normal de envejecimiento se asocia con una serie de cambios cardiovasculares que  obligan a establecer unos est\u00e1ndares de referencia normales adecuados para la edad. Sin embargo, en ocasiones puede ser dif\u00edcil demostrar de forma definitiva que los cambios observados se deben a un envejecimiento biol\u00f3gico primario y no a otras causas externas patol\u00f3gicas. objetivo: estudiar el efecto del envejecimiento sobre el coraz\u00f3n de individuos sanos, analizando los hallazgos morfol\u00f3gicos, la funci\u00f3n tanto sist\u00f3lica como diast\u00f3lica en reposo y las caracter\u00edsticas anat\u00f3micas. m\u00e9todos: se estudian 406 individuos sanos mayores de 65 a\u00f1os y 307 controles sanos entre 20 y 50 a\u00f1os. Se realiz\u00f3 estudio ecocardiogr\u00e1fico en modo m y bidimensional as\u00ed como doppler pulsado para la obtenci\u00f3n de varios par\u00e1metros morfol\u00f3gicos y de funci\u00f3n sist\u00f3lica y diast\u00f3lica. resultados: se encontr\u00f3 un aumento significativo de los grosores sist\u00f3licos y diast\u00f3licos tanto de la pared posterior como del septo en el grupo de ancianos comparados con los controles j\u00f3venes, sin diferencias significativas en las dimensiones cavitarias. La funci\u00f3n sist\u00f3lica no se modific\u00f3 con la edad. Todos los par\u00e1metros analizados de funci\u00f3n diast\u00f3lica presentan diferencias significativas entre el grupo de ancianos y el de j\u00f3venes, con aumento de la velocidad de la onda a, el tiempo de desaceleraci\u00f3n del flujo mitral y el tiempo de relajaci\u00f3n isovolum\u00e9trica del ventr\u00edculo izquierdo y disminuci\u00f3n de la  velocidad de la onda e y la relaci\u00f3n e\/a. La calcificaci\u00f3n del anillo mitral y la fibrosis a\u00f3rtica fueron significativamente m\u00e1s frecuentes en el anciano. conclusiones: en nuestra serie de ancianos normales, el envejecimiento se asocia con un ligero engrosamiento de la pared ventricular, con conservaci\u00f3n de la funci\u00f3n sist\u00f3lica, y con alteraciones diast\u00f3licas que parecen relacionarse de modo independiente con la edad. La existencia de dichas variaciones ha de ser tenida<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>El corazon en el anciano. aspectos ecocardiograficos.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 El corazon en el anciano. aspectos ecocardiograficos. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Vicente Barriales Alvarez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Oviedo<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 30\/03\/2007<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>C\u00e9sar Mor\u00eds De La Tassa<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal:  Arribas castrillo Jos\u00e9 manuel <\/li>\n<li> Rodriguez garcia Miguel angel (vocal)<\/li>\n<li> Berrazueta fernandez Jos\u00e9 ramon (vocal)<\/li>\n<li>Francisco Gosalbez jorda (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Vicente Barriales Alvarez El proceso normal de envejecimiento se asocia con una serie de cambios cardiovasculares que [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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