{"id":56834,"date":"2018-03-09T22:44:37","date_gmt":"2018-03-09T22:44:37","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/hipovitaminosis-d-y-obesidad-morbida-efectos-de-la-cirugia-bariatrica\/"},"modified":"2018-03-09T22:44:37","modified_gmt":"2018-03-09T22:44:37","slug":"hipovitaminosis-d-y-obesidad-morbida-efectos-de-la-cirugia-bariatrica","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-medicas\/hipovitaminosis-d-y-obesidad-morbida-efectos-de-la-cirugia-bariatrica\/","title":{"rendered":"Hipovitaminosis d y obesidad morbida: efectos de la cirugia bariatrica"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Sanchez Hernandez Juan  Antonio <\/strong><\/h2>\n<p>Los datos disponibles sobre el estado de la vitamina d en el paciente con obesidad m\u00f3rbida son escasos hasta la fecha y poco clarificantes, ya que casi siempre se ha relacionado esta insuficiencia con la cirug\u00eda bari\u00e1trica, sin considerar que esta hipovitaminosis d ya pueda preceder a la cirug\u00eda. En este sentido, la asociaci\u00f3n de la deficiencia de vitamina d y el hiperparatiroidismo secundario con la obesidad m\u00f3rbida ha sido descrito en pacientes tratados con y sin cirug\u00eda bari\u00e1trica previa y  existen mecanismos patofisiol\u00f3gicos que se han relacionado con este d\u00e9ficit de vitamina d. los estudios transversal y longitudinal realizados en esta tesis demuestran que la deficiencia de vitamina d est\u00e1 presente en la mayor\u00eda de los pacientes con obesidad m\u00f3rbida antes de la cirug\u00eda y, en una proporci\u00f3n importante de estos pacientes, existe  el hiperparatiroidismo secundario que est\u00e1 claramente relacionado con este grado de deficiencia de la vitamina d. Los resultados del estudio longitudinal sugieren que la cirug\u00eda bari\u00e1trica  de tipo mixto (restrictiva-malabsortiva) no parece influir de forma significativa sobre dichas alteraciones e incluso la realizaci\u00f3n de by-pass g\u00e1strico condiciona una tendencia al aumento posterior de los niveles de calcidiol y disminuci\u00f3n de la parathormona, especialmente en los d\u00e9ficits m\u00e1s graves. Los mecanismos patofisiol\u00f3gicos principales m\u00e1s plausibles del d\u00e9ficit de vitamina d en estos pacientes estar\u00edan relacionados con la insuficiente exposici\u00f3n solar y\/o la reducida biodisponibilidad de la vitamina d secundaria a la excesiva adiposidad en la obesidad grave los resultados de estos estudios tienen implicaciones en la pr\u00e1ctica cl\u00ednica, relacionadas con la monitorizaci\u00f3n de los niveles s\u00e9ricos de calcio, fosfato y vitamina d en todos los pacientes con obesidad grave para  instaurar la  suplementaci\u00f3n de calcio y vitamina d en aquellos que  presenten d\u00e9ficit. Esta pr\u00e1ctica se justifica , adem\u00e1s de por la  el<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Hipovitaminosis d y obesidad morbida: efectos de la cirugia bariatrica<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Hipovitaminosis d y obesidad morbida: efectos de la cirugia bariatrica <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Sanchez Hernandez Juan  Antonio <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 31\/01\/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>Antonio Perez Perez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: xavier Rius cornado <\/li>\n<li>Jos\u00e9 Rodriguez espinosa (vocal)<\/li>\n<li>crist\u00f3bal Mezquita pl\u00e1 (vocal)<\/li>\n<li> Sanchez quesada Jos\u00e9 Luis (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Sanchez Hernandez Juan Antonio Los datos disponibles sobre el estado de la vitamina d en el paciente [&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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