https://www.selleckchem.com/products/nhwd-870.html
Background The optimal threshold of left ventricular ejection fraction (LVEF) that should prompt aortic valve replacement (AVR) in asymptomatic patients with high-gradient severe aortic stenosis (AS) is controversial. The aim of this study was to assess the relationship between LVEF and mortality benefit in comparing early AVR versus watchful waiting in asymptomatic patients with severe AS. Methods and Results MEDLINE, Embase, Web of Science, and Google Scholar were searched for observational studies and randomized controlled trials on
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