{"id":144826,"date":"1993-01-01T00:00:00","date_gmt":"1993-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/isquemia-y-reperfusion-miocardicas-en-el-cerdo-modelos-para-el-estudio-de-la-angina-inestable-precondicionamiento-y-del-infarto-agudo\/"},"modified":"1993-01-01T00:00:00","modified_gmt":"1993-01-01T00:00:00","slug":"isquemia-y-reperfusion-miocardicas-en-el-cerdo-modelos-para-el-estudio-de-la-angina-inestable-precondicionamiento-y-del-infarto-agudo","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-medicas\/isquemia-y-reperfusion-miocardicas-en-el-cerdo-modelos-para-el-estudio-de-la-angina-inestable-precondicionamiento-y-del-infarto-agudo\/","title":{"rendered":"Isquemia y reperfusion miocardicas en el cerdo. modelos para el estudio  de la angina inestable (precondicionamiento) y del infarto agudo."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jaume Figueras Bellot <\/strong><\/h2>\n<p>Se estudian 3 modelos de isquemia y reperfusion miocardicas en el cerdo, con monitorizacion de electrogramas epicardicos y endocardicos y de la contractilidad regional (galga de tension). A) modelo de angina inestable. Se practican oclusiones coronarias (3-4) de 15 min con reperfusiones de 45, en 34 animales.  se comprueba que durante las oclusiones sucesivas se produce una progresiva elevacion del segmento tq+st, una reduccion de la onda r, un aumento de la activacion ventricular, una mayor incidencia de alternancia del st y de arritmias ventriculares severas, y un progresivo deterioro de la contractilidad regional. Durante las reperfusiones, se observa una normalizacion electrocardiografica progresivamente mas rapida, una incidencia de arritmias menor y una acidosis mixta e hipokaliemia regionales, progresivamente menores. Por tanto, oclusiones repetitivas de 15 min producen un progresivo deterioro del electrocardiograma y de la contractilidad. B) modelo de infarto de miocardio con reperfusion precoz. Se realizan oclusiones coronarias de 1-4h en 35 animales con reperfusiones de 1h. Se documenta una importante reelevacion del segmento tq+st durante la reperfusion, tanto despues de 1 como de 2, 3 o 4h de oclusion, que dura unos 30 min. Dicha reperfusion solo se acompa\u00f1a de arritmias severas despues de 1h de oclusion pero no despues de 2,3 o 4h.  en conclusion, el reascenso del st es un importante signo de reperfusion en el infarto de 1-4h.  c) modelo de extension del infarto. Se practican 3 oclusiones coronarias de 15 min, a los 60, 120 y 180 min de una oclusion distal permanente, en 10 animales. Se demuestra una reelevacion del segmento tq+st en la zona distal en cada oclusion proximal, con empeoramiento de la contractilidad. Por tanto, la extension del infarto afecta en parte al territorio previamente ocluido, sugiriendo su parcial viabilidad.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Isquemia y reperfusion miocardicas en el cerdo. modelos para el estudio  de la angina inestable (precondicionamiento) y del infarto agudo.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Isquemia y reperfusion miocardicas en el cerdo. modelos para el estudio  de la angina inestable (precondicionamiento) y del infarto agudo. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jaume Figueras Bellot <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1993<\/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>Enrique Domingo Ribas<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Pilar Tornos Mas <\/li>\n<li>David Garcia Dorado (vocal)<\/li>\n<li>Gaieta Permanyer Miralda (vocal)<\/li>\n<li>Amadeo Betriu Gibert (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jaume Figueras Bellot Se estudian 3 modelos de isquemia y reperfusion miocardicas en el cerdo, con monitorizacion [&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":[932,9,139],"tags":[1164,83960,1167,29385,59497,1166],"class_list":["post-144826","post","type-post","status-publish","format-standard","hentry","category-cardiologia","category-ciencias-medicas","category-medicina-interna","tag-amadeo-betriu-gibert","tag-david-garcia-dorado","tag-enrique-domingo-ribas","tag-gaieta-permanyer-miralda","tag-jaume-figueras-bellot","tag-pilar-tornos-mas"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/144826","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=144826"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/144826\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=144826"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=144826"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=144826"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}