{"id":84351,"date":"2000-03-05T00:00:00","date_gmt":"2000-03-05T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/selenio-como-predictor-de-isquemia-despues-de-reperfusion-miocardica-por-circulacion-extracorporea\/"},"modified":"2000-03-05T00:00:00","modified_gmt":"2000-03-05T00:00:00","slug":"selenio-como-predictor-de-isquemia-despues-de-reperfusion-miocardica-por-circulacion-extracorporea","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-medicas\/selenio-como-predictor-de-isquemia-despues-de-reperfusion-miocardica-por-circulacion-extracorporea\/","title":{"rendered":"Selenio como predictor de isquemia despu\u00e9s de reperfusion mioc\u00e1rdica por circulacion extracorporea"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Juan  Carlos Sevilla Moya <\/strong><\/h2>\n<p>La circulaci\u00f3n extracorp\u00f3rea (cec) ya ha sido relacionada conla generaci\u00f3n de radicales libres y estr\u00e9s oxidativo. El selenio ha sido propuesto como factor antioxidante que disminuir\u00e1 la incidencia de arritmias despu\u00e9s de reperfusi\u00f3n micoc\u00e1rdica en animales de experimentaci\u00f3n. Las arritmias postreperfusi\u00f3n son signos de isquemia.  se estudia la relaci\u00f3n entre el selenio plasm\u00e1tico antes de cec con el riesgo de isquemia periperatoria y conlos signos de isquemia en este periodo: elevaci\u00f3n enzim\u00e1tica, alteraciones en la repolarizaci\u00f3n en electrocardiograma postintervenci\u00f3n, aparici\u00f3n de fibrilaci\u00f3n ventricular al salir de cec, otras arritmias en las 24 horas posteriores a la intervenci\u00f3n.  para ello, se obtuvieron muestras de 21 pacientes sometidos a cec por bypass aortocoronario (20 varones y 1 mujer) con edades entre 37 y 78 (media 61 a\u00f1os). Con estas muestras se determinaron par\u00e1metros oxidativos: tbars, dienos, lipoper\u00f3xidos, vitamina e y selenio plasm\u00e1ticos. Estas muestras se obtuvieron antes de cec, 10 min. Y 24 horas despu\u00e9s de cec. Se registraron desde la historia cl\u00ednica los factores de reisgo cardiovascular y los factores de riesgo de isquemia perioperatoria ya descritos. Tambi\u00e9n se valoraron los signos de isquemia perioperatoria mencionados m\u00e1s arriba.  resultados:  los par\u00e1metros oxidativos tbars, dienos y lipoper\u00f3xidos aumentaron respecto a los valores basales (antes de cec). La vitamina e no sufri\u00f3 modificaciones y el selenio aumento. Todos estos valores corregidos por colesterol total para evitar la influencia de la hemodiluci\u00f3n necesaria durante la cec. los valores de selenio pre-cec se asocian con mayor riesgo de isquemia periperatoria y m\u00e1s signos de isquemia: niveles mayores de selenio se acompa\u00f1an de menor isquemia. Sin embargo, no se alcanza significaci\u00f3n estad\u00edstica.  conclusiones:  1-durante cec se confirma la existencia de estr\u00e9s oxidativo.  2-el selenio plasm\u00e1tico aumenta d<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Selenio como predictor de isquemia despu\u00e9s de reperfusion mioc\u00e1rdica por circulacion extracorporea<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Selenio como predictor de isquemia despu\u00e9s de reperfusion mioc\u00e1rdica por circulacion extracorporea <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Juan  Carlos Sevilla Moya <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Complutense de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 03\/05\/2000<\/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 Luis Vallejo Ruiz<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jos\u00e9 Luis Balibrea  cantero <\/li>\n<li>gabriel T\u00e9llez de peralta (vocal)<\/li>\n<li>pedro Zarco guiterrez (vocal)<\/li>\n<li>Jos\u00e9 Antonio Rodr\u00edguez montes (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Juan Carlos Sevilla Moya La circulaci\u00f3n extracorp\u00f3rea (cec) ya ha sido relacionada conla generaci\u00f3n de radicales libres [&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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