Jan 29, 2025 · Ejection fraction is a measurement of the percentage of blood leaving the heart each time it squeezes. When the heart squeezes, it's called a contraction. Ejection fraction is just one of many …

May 10, 2025 · 左心室（LV）射血分数约 50% 至 70% 为正常。 LV 射血分数轻度降低通常介于 41% 至 49% 之间。 LV 射血分数降低通常是在 40% 或以下。 即使射血分数正常，整体心脏功能也可能不健 …

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May 20, 2015 · The prevalence of this syndrome, termed heart failure with preserved ejection fraction (HFpEF), continues to increase in the developed world, likely because of the increasing prevalence …

Jun 17, 2025 · Overview A hepatobiliary iminodiacetic acid (HIDA) scan is an imaging procedure used to diagnose problems of the liver, gallbladder and bile ducts. For a HIDA scan, also known as …

Jan 21, 2025 · Heart failure occurs when the heart muscle doesn't pump blood as well as it should. Blood often backs up and causes fluid to build up in the lungs and in the legs. The fluid buildup can …

Jul 2, 2025 · La fracción de eyección es una medida del porcentaje de sangre que sale del corazón cada vez que se comprime. Cuando el corazón se comprime, se llama contracción. La fracción de …

Dec 7, 2024 · Ejection fraction. This test is done during an echocardiogram. It's a measurement of the percentage of blood leaving the heart each time it squeezes. A typical ejection fraction is 50% to …

Aug 18, 2023 · Pulse pressure is determined from the two numbers of a blood pressure reading. Blood pressure is measured in millimeters of mercury (mm Hg). The top number is called systolic pressure. …

Aug 15, 2023 · It is common to use left ventricular ejection fraction as a way to determine prognosis. We have found this is not always the best way to determine prognosis in patients with heart failure. …