منابع مشابه
Reduced First-Phase Ejection Fraction and Sustained Myocardial Wall Stress in Hypertensive Patients With Diastolic Dysfunction
Impaired shortening deactivation of cardiac myocytes could sustain myocardial contraction, preserving ejection fraction at the expense of diastolic dysfunction. We examined the relationship between first-phase ejection fraction (EF1), the fraction of left ventricular volume ejected from the start of systole to the time of the first peak in left ventricular pressure (corresponding to the time of...
متن کاملFirst-third ejection fraction: is the first-pass radionuclide method accurate?
Previous reports have suggested that left ventricular first-third ejection fraction (EF) can be obtained from the left ventricular time-activity curve derived from first-pass radionuclide angiography based on Anger camera data. The validity of this technique was assessed by: a study of beat-to-beat variations in data from 15 patients in which electrocardiographic data were simultaneously record...
متن کاملEffect of Preoperative Ejection Fraction
Ninety-three patients with aortic valve disease were evaluated to determine the effect of the preoperative left ventricular ejection fraction (EF) on the results of aortic valve replacement (AVR). Forty-six patients had aortic stenosis (AS), 16 had aortic insufficiency (Al), and 31 had mixed aortic stenosis and insufficiency (MX). Immediate and long-term survival curves in AS and MX, and in AS ...
متن کاملHeart Failure With Preserved Ejection Fraction
The Journal of the American Osteopathic Association July 2015 | Vol 115 | No. 7 432 From Henry Ford Wyandotte Downriver Cardiology in Brownstown, Michigan (Dr Rogers); West Suburban Medical Center in Oak Park, Illinois (Dr Gundala); Oakwood Southshore Medical Center in Trenton, Michigan (Dr Ramos); and Elmhurst Memorial Hospital in Illinois (Dr Serajian). Drs Gundala and Ramos are in their thir...
متن کاملHeart Failure With Preserved Ejection Fraction
Symptomatic heart failure, despite preserved left ventricular (LV) ejection fraction, is a well-recognized phenomenon. This manifestation of diastolic dysfunction is associated with increased morbidity and mortality and can be attributed to a variety of pathogeneses, including diabetes mellitus, hypertension, infiltrative processes, and obesity. Unlike in systolic heart failure, where LV ejecti...
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ژورنال
عنوان ژورنال: JACC: Cardiovascular Imaging
سال: 2019
ISSN: 1936-878X
DOI: 10.1016/j.jcmg.2018.10.007