{"id":913,"date":"2017-07-10T12:08:14","date_gmt":"2017-07-10T16:08:14","guid":{"rendered":"https:\/\/manhattancardiology.com\/what-is-ejection-fraction-ef\/"},"modified":"2026-07-27T00:51:21","modified_gmt":"2026-07-27T04:51:21","slug":"what-is-ejection-fraction-ef","status":"publish","type":"post","link":"https:\/\/manhattancardiology.com\/es\/blog\/what-is-ejection-fraction-ef\/","title":{"rendered":"\u00bfQu\u00e9 es la fracci\u00f3n de eyecci\u00f3n (FE)?"},"content":{"rendered":"<p><a href=\"http:\/\/www.heart.org\/HEARTORG\/Conditions\/HeartFailure\/DiagnosingHeartFailure\/Ejection-Fraction-Heart-Failure-Measurement_UCM_306339_Article.jsp\"><span style=\"font-weight: 400;\">Fracci\u00f3n de eyecci\u00f3n (FE)<\/span><\/a><span style=\"font-weight: 400;\"> es una medida de cu\u00e1nta sangre sale del coraz\u00f3n con cada latido.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Cada ciclo de latido card\u00edaco tiene dos partes: contracci\u00f3n y relajaci\u00f3n. Cuando el coraz\u00f3n se contrae, la sangre es expulsada de los dos ventr\u00edculos. Durante la relajaci\u00f3n, los ventr\u00edculos se llenan de sangre.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Por m\u00e1s en\u00e9rgicas que sean las contracciones del coraz\u00f3n, nunca son lo suficientemente fuertes como para bombear toda la sangre fuera de los ventr\u00edculos. Sin embargo, la cantidad de sangre que el coraz\u00f3n es capaz de eyectar comunica mucho sobre la salud card\u00edaca de un paciente. Saber con cu\u00e1nta eficacia bombea sangre el coraz\u00f3n ayuda a diagnosticar y realizar un seguimiento de la insuficiencia card\u00edaca.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Comprender los resultados de EF<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">El coraz\u00f3n bombea principalmente sangre desde el ventr\u00edculo izquierdo (VI) a trav\u00e9s de la aorta hacia el resto del cuerpo. La FE por lo general solo se mide en el ventr\u00edculo izquierdo (VI). Esto se conoce como <\/span><a href=\"http:\/\/www.heart.org\/HEARTORG\/Conditions\/HeartFailure\/DiagnosingHeartFailure\/Ejection-Fraction-Heart-Failure-Measurement_UCM_306339_Article.jsp\"><span style=\"font-weight: 400;\">Fracci\u00f3n de eyecci\u00f3n del ventr\u00edculo izquierdo (FEVI)<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A veces, su m\u00e9dico puede decidir medir la cantidad de sangre que sale del lado derecho del coraz\u00f3n en busca de ox\u00edgeno en los pulmones. Esta medici\u00f3n se conoce como fracci\u00f3n de eyecci\u00f3n del ventr\u00edculo derecho (FEVD).<\/span><\/p>\n<p><span style=\"font-weight: 400;\">La FE se expresa como un porcentaje. Por ejemplo, una FE del 60% muestra que el 60% de la sangre del VI es expulsado del ventr\u00edculo con cada contracci\u00f3n.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">\u00bfQu\u00e9 es normal y qu\u00e9 no?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">La fracci\u00f3n de eyecci\u00f3n de un coraz\u00f3n normal debe estar entre el 50 y el 70 %.<img loading=\"lazy\" decoding=\"async\" class=\"alignright size-full wp-image-2555\" src=\"https:\/\/manhattancardiology.com\/wp-content\/uploads\/2016\/12\/Suddent-Cardiac-Death-Screen-Ejection-Fraction-Chart.png\" alt=\"Suddent Cardiac Death Screen Ejection Fraction Chart\" width=\"266\" height=\"268\" \/> <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Una FE de entre el 41 y el 49% puede considerarse baja, pero no significa necesariamente que exista riesgo de insuficiencia card\u00edaca. A veces, una FE baja puede ser el resultado de da\u00f1os causados por un ataque card\u00edaco anterior.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Pero una FE del 40% o inferior puede indicar insuficiencia card\u00edaca o <\/span><a href=\"https:\/\/www.nhlbi.nih.gov\/health\/health-topics\/topics\/cm\"><span style=\"font-weight: 400;\">miocardiopat\u00eda<\/span><\/a><span style=\"font-weight: 400;\">. Otras razones por las que su FE puede ser baja incluyen:<\/span><\/p>\n<ul>\n<li><b> <\/b><span style=\"font-weight: 400;\">Una debilidad en el m\u00fasculo card\u00edaco. <\/span><a href=\"http:\/\/www.heart.org\/HEARTORG\/Conditions\/More\/Cardiomyopathy\/Dilated-Cardiomyopathy_UCM_444187_Article.jsp\"><span style=\"font-weight: 400;\">Cardiomiopat\u00eda dilatada<\/span><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/ghr.nlm.nih.gov\/condition\/familial-dilated-cardiomyopathy\"><span style=\"font-weight: 400;\">miocardiopat\u00eda dilatada familiar<\/span><\/a><span style=\"font-weight: 400;\">, y las enfermedades sist\u00e9micas pueden provocar dicha debilidad.<\/span><\/li>\n<li><b> <\/b><span style=\"font-weight: 400;\">Un problema con las v\u00e1lvulas del coraz\u00f3n.<\/span><\/li>\n<li><b> <\/b><a href=\"\/es\/understanding-high-blood-pressure\/\"><span style=\"font-weight: 400;\">Presi\u00f3n arterial alta<\/span><\/a><span style=\"font-weight: 400;\"> eso se prolonga demasiado sin tratamiento.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Por otro lado, una medici\u00f3n de la FE superior al 75% suele indicar una afecci\u00f3n card\u00edaca como <\/span><a href=\"http:\/\/www.heart.org\/HEARTORG\/Conditions\/More\/Cardiomyopathy\/Hypertrophic-Cardiomyopathy_UCM_444317_Article.jsp\"><span style=\"font-weight: 400;\">miocardiopat\u00eda hipertr\u00f3fica<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Es importante se\u00f1alar que la FE es solo una de las medidas de la eficacia del coraz\u00f3n. Unos resultados positivos de la FE no indican necesariamente un coraz\u00f3n sano. Algunas personas tienen lecturas normales de FE pero aun as\u00ed sufren de insuficiencia card\u00edaca, o insuficiencia card\u00edaca con fracci\u00f3n de eyecci\u00f3n preservada (ICFEp). <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Este tipo de insuficiencia card\u00edaca ocurre cuando el m\u00fasculo card\u00edaco se vuelve tan grueso que los ventr\u00edculos retienen un volumen de sangre menor de lo habitual. Por ejemplo, el ventr\u00edculo izquierdo a\u00fan podr\u00eda bombear el 60% de la sangre que contiene, lo que indica una fracci\u00f3n de eyecci\u00f3n normal. Pero, en realidad, la cantidad de sangre que el ventr\u00edculo puede contener es baja desde el principio.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">\u00bfC\u00f3mo se mide la fracci\u00f3n de eyecci\u00f3n?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">La FE se mide mediante diversas t\u00e9cnicas de imagen como:<\/span><\/p>\n<ul>\n<li><b> Ecocardiograma<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Aplica ondas sonoras para crear im\u00e1genes del coraz\u00f3n y de la sangre que bombea a trav\u00e9s de \u00e9l. <\/span><\/p>\n<ul>\n<li><b> Cateterismo card\u00edaco<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Un tubo de pl\u00e1stico delgado se introduce en la arteria del brazo o la pierna y se desplaza hasta el coraz\u00f3n. Es posible que se tomen im\u00e1genes durante el proceso.<\/span><\/p>\n<ul>\n<li><b> Resonancia Magn\u00e9tica Card\u00edaca (RMC)<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Utiliza ondas de radio y un campo magn\u00e9tico para crear im\u00e1genes de ciertas partes del cuerpo. Cuando se utiliza para estudiar el coraz\u00f3n, tambi\u00e9n se le conoce como resonancia magn\u00e9tica cardiovascular.<\/span><\/p>\n<ul>\n<li><b> Tomograf\u00eda computarizada (TC) card\u00edaca<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Una tomograf\u00eda computarizada que utiliza tecnolog\u00eda especial de rayos X para crear im\u00e1genes transversales de ciertas partes de su cuerpo. Cuando se utiliza en el coraz\u00f3n, es una tomograf\u00eda computarizada card\u00edaca.<\/span><\/p>\n<ul>\n<li><b> Gammagraf\u00eda<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Un material radiactivo como el talio se introduce en el torrente sangu\u00edneo y se rastrea mediante c\u00e1maras especiales. A pesar de utilizar material radiactivo, la gammagraf\u00eda nuclear se considera segura.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">\u00bfDebo saber mi fracci\u00f3n de eyecci\u00f3n?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Conocer su fracci\u00f3n de eyecci\u00f3n (FE) es especialmente importante si ya le han diagnosticado una afecci\u00f3n card\u00edaca. Los resultados de la prueba de FE pueden ser fundamentales para ayudar al m\u00e9dico a determinar qu\u00e9 curso de tratamiento es el m\u00e1s adecuado para usted. Es posible que su proveedor de atenci\u00f3n m\u00e9dica tambi\u00e9n necesite conocer su FE para poder evaluar el tratamiento y su eficacia.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Consulte a su m\u00e9dico para saber con qu\u00e9 frecuencia necesita realizarse una prueba de la FE. Por regla general, debe medir su FE la primera vez que le diagnostiquen una afecci\u00f3n card\u00edaca. Luego debe hac\u00e9rsela medir seg\u00fan sea necesario y a medida que su afecci\u00f3n cambie.<\/span><\/p>\n<p>Si tiene preocupaciones y desea hacerse una prueba para asegurarse de que su coraz\u00f3n funciona de manera eficiente, por favor\u00a0<a href=\"https:\/\/momnyc.myezyaccess.com\/ezbooking?t=Pnz3FDH9hx4=\">programar una consulta<\/a>\u00a0con los especialistas de Manhattan Cardiology.<\/p>","protected":false},"excerpt":{"rendered":"<p>Ejection fraction (EF) is a measure of how much blood leaves the heart with each heartbeat. Every heartbeat cycle has two parts: Contraction and relaxation. When the heart contracts, blood is ejected from two ventricles. During relaxation, the ventricles are filled with blood. No matter how forceful heart contractions get, they\u2019re never strong enough to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[125],"tags":[],"class_list":["post-913","post","type-post","status-publish","format-standard","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What Is Ejection Fraction? | Manhattan Cardiology<\/title>\n<meta name=\"description\" content=\"An ejection fraction (EF) is a measure of how much blood leaves the heart with each heartbeat. 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