{"id":90814,"date":"2018-03-11T10:09:23","date_gmt":"2018-03-11T10:09:23","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/activation-patterns-in-atrial-fibrillation-contributions-of-body-surface-potential-mapping\/"},"modified":"2018-03-11T10:09:23","modified_gmt":"2018-03-11T10:09:23","slug":"activation-patterns-in-atrial-fibrillation-contributions-of-body-surface-potential-mapping","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/cardiologia\/activation-patterns-in-atrial-fibrillation-contributions-of-body-surface-potential-mapping\/","title":{"rendered":"Activation patterns in atrial fibrillation: contributions of body surface potential mapping."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Mar\u00eda De La Salud Guillem S\u00e1nchez <\/strong><\/h2>\n<p>La fibrilaci\u00f3n auricular (fa) es una de las arritmias cardiacas m\u00e1s comunes, afectando a alrededor del 10 % de los mayores de 70 a\u00f1os. A pesar de su alta incidencia en la poblaci\u00f3n, los mecanismos que desencadenan y mantienen la fa son inciertos. Aunque existen diversos tratamientos quir\u00fargicos y farmacol\u00f3gicos, el \u00e9xito de los tratamientos contra la fa es muy bajo. La causa de esta baja tasa de \u00e9xito de las diferentes terapias es que no existen criterios de selecci\u00f3n de pacientes que permitan pronosticar qu\u00e9 terapia puede ser m\u00e1s efectiva para cada paciente. Una de las formas que se han propuesto para determinar el grado de gravedad de la arritmia en cada paciente y, por tanto, poder predecir qu\u00e9 tratamiento es el m\u00e1s apropiado es la medida de la organizaci\u00f3n auricular.  esta tesis doctoral se enmarca dentro de la determinaci\u00f3n no invasiva del grado de organizaci\u00f3n espacial de la activaci\u00f3n del miocardio auricular a partir del estudio de registros multiderivaci\u00f3n del electrocardiograma de superficie (ecg). El ecg es una representaci\u00f3n simplificada del campo el\u00e9ctrico del coraz\u00f3n basada en las proyecciones de este campo el\u00e9ctrico en 8 ejes. Esta simplificaci\u00f3n es considerada como aceptable en el caso de ritmos no fibrilantes en los que la activaci\u00f3n mioc\u00e1rdica puede ser modelada como un dipolo. Sin embargo, su validez no ha sido demostrada para el caso de ritmos fibrilantes en los cuales la asunci\u00f3n de un modelo dipolar es cuestionable. Uno de los objetivos de esta tesis ha sido la evaluaci\u00f3n del electrocardiograma de superficie para la obtenci\u00f3n de par\u00e1metros espaciales de las ondas de fa. Se compararon las representaciones tridimensionales de las ondas de fa registradas a partir de tres derivaciones ortogonales con las representaciones tridimensionales estimadas a partir del ecg, llegando a la conclusi\u00f3n de que estas representaciones estimadas no son fieles a las representaciones registradas. Los resultados de nuestro estudio ponen de manifiesto que la falta de d<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Activation patterns in atrial fibrillation: contributions of body surface potential mapping.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Activation patterns in atrial fibrillation: contributions of body surface potential mapping. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Mar\u00eda De La Salud Guillem S\u00e1nchez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Valencia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 17\/12\/2008<\/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>Jos\u00e9 Millet Roig<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jos\u00e9 Mar\u00eda Ferrero de loma-osorio <\/li>\n<li>luca Mainardi (vocal)<\/li>\n<li>oliver Meste (vocal)<\/li>\n<li>dewar Finlay (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Mar\u00eda De La Salud Guillem S\u00e1nchez La fibrilaci\u00f3n auricular (fa) es una de las arritmias cardiacas m\u00e1s [&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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[932,2771,16820],"tags":[188337,71183,47992,124218,188335,188336],"class_list":["post-90814","post","type-post","status-publish","format-standard","hentry","category-cardiologia","category-instrumentos-medicos","category-politecnica-de-valencia","tag-dewar-finlay","tag-jose-maria-ferrero-de-loma-osorio","tag-jose-millet-roig","tag-luca-mainardi","tag-maria-de-la-salud-guillem-sanchez","tag-oliver-meste"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/90814","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=90814"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/90814\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=90814"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=90814"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=90814"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}