{"id":1976,"date":"2026-01-26T15:58:38","date_gmt":"2026-01-26T14:58:38","guid":{"rendered":"https:\/\/mountain-medicine.org\/?p=1976"},"modified":"2026-01-26T15:58:41","modified_gmt":"2026-01-26T14:58:41","slug":"%e2%9d%84%ef%b8%8f%e2%9a%a1-desfibrilacion-en-la-hipotermia-accidental-que-dice-realmente-la-evidencia","status":"publish","type":"post","link":"https:\/\/mountain-medicine.org\/pt\/%e2%9d%84%ef%b8%8f%e2%9a%a1-desfibrilacion-en-la-hipotermia-accidental-que-dice-realmente-la-evidencia\/","title":{"rendered":"\u2744\ufe0f\u26a1 Desfibrilaci\u00f3n en la hipotermia accidental: \u00bfqu\u00e9 dice realmente la evidencia?"},"content":{"rendered":"<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/mountain-medicine.org\/wp-content\/uploads\/2026\/01\/Desfibrilacion-en-condiciones-extremas.png\" alt=\"\" class=\"wp-image-1977\" srcset=\"https:\/\/mountain-medicine.org\/wp-content\/uploads\/2026\/01\/Desfibrilacion-en-condiciones-extremas.png 1024w, https:\/\/mountain-medicine.org\/wp-content\/uploads\/2026\/01\/Desfibrilacion-en-condiciones-extremas-300x300.png 300w, https:\/\/mountain-medicine.org\/wp-content\/uploads\/2026\/01\/Desfibrilacion-en-condiciones-extremas-150x150.png 150w, https:\/\/mountain-medicine.org\/wp-content\/uploads\/2026\/01\/Desfibrilacion-en-condiciones-extremas-768x768.png 768w, https:\/\/mountain-medicine.org\/wp-content\/uploads\/2026\/01\/Desfibrilacion-en-condiciones-extremas-12x12.png 12w, https:\/\/mountain-medicine.org\/wp-content\/uploads\/2026\/01\/Desfibrilacion-en-condiciones-extremas-450x450.png 450w, https:\/\/mountain-medicine.org\/wp-content\/uploads\/2026\/01\/Desfibrilacion-en-condiciones-extremas-600x600.png 600w, https:\/\/mountain-medicine.org\/wp-content\/uploads\/2026\/01\/Desfibrilacion-en-condiciones-extremas-100x100.png 100w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">La reanimaci\u00f3n cardiopulmonar en pacientes con <strong>hipotermia accidental grave<\/strong> sigue siendo uno de los escenarios m\u00e1s complejos en medicina de emergencias. Durante a\u00f1os, la utilidad de la desfibrilaci\u00f3n en pacientes con <strong>temperaturas corporales muy bajas<\/strong> ha sido motivo de debate, con recomendaciones dispares entre distintas gu\u00edas internacionales.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Un reciente estudio basado en el <strong>Registro Internacional de Hipotermia<\/strong> aporta nueva evidencia que ayuda a aclarar este dilema cl\u00ednico.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83e\uddca El problema cl\u00ednico<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">En la hipotermia grave, el miocardio se vuelve el\u00e9ctricamente inestable y menos sensible a la desfibrilaci\u00f3n. Tradicionalmente, muchas gu\u00edas han recomendado <strong>limitar los intentos de desfibrilaci\u00f3n<\/strong> o incluso retrasarlos hasta alcanzar una temperatura central determinada.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sin embargo, esta estrategia plantea una pregunta clave:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u00bfEstamos perdiendo oportunidades de revertir ritmos desfibrilables al ser demasiado restrictivos?<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udcca Dise\u00f1o del estudio<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El estudio analiz\u00f3 <strong>37 pacientes<\/strong> con:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Paro card\u00edaco<\/li>\n\n\n\n<li>Ritmo desfibrilable (FV\/TV)<\/li>\n\n\n\n<li>Temperatura corporal central \u226430 \u00b0C<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Los datos se obtuvieron del <strong>Registro Internacional de Hipotermia<\/strong>, abarcando casos desde 1982 hasta 2022.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">El objetivo fue identificar <strong>factores asociados al \u00e9xito de la desfibrilaci\u00f3n<\/strong> y evaluar el impacto de la temperatura, el recalentamiento y el n\u00famero de choques.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd11 Principales hallazgos<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1\ufe0f\u20e3 La temperatura central es el factor m\u00e1s importante<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Cada incremento de <strong>1 \u00b0C<\/strong> en la temperatura central en el momento del choque <strong>multiplica entre 2.7 y 4 veces<\/strong> la probabilidad de desfibrilaci\u00f3n exitosa.<br>Este efecto se mantiene independientemente del uso de ECLS, del periodo hist\u00f3rico o de otros factores cl\u00ednicos.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 En la hipotermia, <strong>la temperatura manda<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h3 class=\"wp-block-heading\">2\ufe0f\u20e3 Existe un umbral cr\u00edtico alrededor de los 25 \u00b0C<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Aunque la desfibrilaci\u00f3n es posible por debajo de 30 \u00b0C, el estudio muestra que:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ning\u00fan paciente<\/strong> fue desfibrilado con \u00e9xito con una temperatura &lt;24.8 \u00b0C.<\/li>\n\n\n\n<li>A partir de <strong>\u224825 \u00b0C<\/strong>, la probabilidad de \u00e9xito aumenta de forma marcada.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Esto define un <strong>umbral fisiol\u00f3gico cl\u00ednicamente relevante<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h3 class=\"wp-block-heading\">3\ufe0f\u20e3 El recalentamiento cambia el pron\u00f3stico<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">La desfibrilaci\u00f3n realizada <strong>durante el recalentamiento<\/strong>, especialmente con <strong>soporte extracorp\u00f3reo (ECLS)<\/strong>, tuvo una tasa de \u00e9xito muy superior:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>100% de \u00e9xito<\/strong> durante el recalentamiento<\/li>\n\n\n\n<li>Frente a <strong>25%<\/strong> antes de iniciarlo<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">El recalentamiento mejora la perfusi\u00f3n y la oxigenaci\u00f3n mioc\u00e1rdica, aumentando la respuesta al choque el\u00e9ctrico.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h3 class=\"wp-block-heading\">4\ufe0f\u20e3 La mayor\u00eda de los pacientes requieren m\u00e1s de un choque<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Solo el <strong>29%<\/strong> de los pacientes exitosos revirtieron con un \u00fanico choque.<br>O <strong>67%<\/strong> necesit\u00f3 <strong>dos o m\u00e1s desfibrilaciones<\/strong>.<br>Ning\u00fan paciente tuvo \u00e9xito tras m\u00e1s de cinco choques.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 Limitar la desfibrilaci\u00f3n a un solo intento puede reducir significativamente las probabilidades de ROSC.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udcd8 Implicaciones para las gu\u00edas cl\u00ednicas<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Uno de los hallazgos m\u00e1s relevantes es que los datos del estudio <strong>respaldan claramente las recomendaciones del ERC<\/strong>, que permiten <strong>m\u00faltiples intentos de desfibrilaci\u00f3n<\/strong> en pacientes con hipotermia \u226430 \u00b0C.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En contraste:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Las recomendaciones de <strong>AHA<\/strong> y <strong>WMS<\/strong>, que limitan a un solo choque, habr\u00edan impedido el \u00e9xito en hasta <strong>dos tercios de los pacientes<\/strong> que finalmente lograron ROSC.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 La evidencia sugiere que un enfoque <strong>m\u00e1s flexible y fisiol\u00f3gico<\/strong>, como el del ERC, se alinea mejor con los resultados reales.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83e\udde0 Mensaje cl\u00ednico final<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">En la hipotermia accidental con paro card\u00edaco y ritmo desfibrilable:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u2744\ufe0f La temperatura central es clave<\/li>\n\n\n\n<li>\ud83c\udf21\ufe0f Intentar desfibrilar a partir de ~25 \u00b0C<\/li>\n\n\n\n<li>\ud83d\udd01 Repetir choques si persiste FV\/TV<\/li>\n\n\n\n<li>\ud83d\udd25 Priorizar RCP de calidad y recalentamiento activo (idealmente con ECLS)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/mountain-medicine.org\/wp-content\/uploads\/2026\/01\/1-s2.0-S030095722600016X-main.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"Incorpora\u00e7\u00e3o de 1-s2.0-S030095722600016X-main.\"><\/object><a id=\"wp-block-file--media-9bf1ed30-ab80-4c67-a628-08f2381b90b8\" href=\"https:\/\/mountain-medicine.org\/wp-content\/uploads\/2026\/01\/1-s2.0-S030095722600016X-main.pdf\">1-s2.0-S030095722600016X-main<\/a><a href=\"https:\/\/mountain-medicine.org\/wp-content\/uploads\/2026\/01\/1-s2.0-S030095722600016X-main.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-9bf1ed30-ab80-4c67-a628-08f2381b90b8\">Descarga<\/a><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>La reanimaci\u00f3n cardiopulmonar en pacientes con hipotermia accidental grave sigue siendo uno de los escenarios m\u00e1s complejos en medicina de emergencias. Durante a\u00f1os, la utilidad de la desfibrilaci\u00f3n en pacientes con temperaturas corporales muy bajas ha sido motivo de debate, con recomendaciones dispares entre distintas gu\u00edas internacionales. Un reciente estudio basado en el Registro Internacional [&hellip;]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1976","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u2744\ufe0f\u26a1 Desfibrilaci\u00f3n en la hipotermia accidental: \u00bfqu\u00e9 dice realmente la evidencia? | Mountain-Medicine<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mountain-medicine.org\/pt\/\u2744\ufe0f\u26a1-desfibrilacion-en-la-hipotermia-accidental-que-dice-realmente-la-evidencia\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u2744\ufe0f\u26a1 Desfibrilaci\u00f3n en la hipotermia accidental: \u00bfqu\u00e9 dice realmente la evidencia? | Mountain-Medicine\" \/>\n<meta property=\"og:description\" content=\"La reanimaci\u00f3n cardiopulmonar en pacientes con hipotermia accidental grave sigue siendo uno de los escenarios m\u00e1s complejos en medicina de emergencias. Durante a\u00f1os, la utilidad de la desfibrilaci\u00f3n en pacientes con temperaturas corporales muy bajas ha sido motivo de debate, con recomendaciones dispares entre distintas gu\u00edas internacionales. 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