Optimal Threshold of Left Ventricular Ejection Fraction for Aortic Valve Replacement in Asymptomatic Severe Aortic Stenosis: A Systematic Review and Meta-Analysis.

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 (A...