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Although beta blockers (BBs) are established therapy in heart failure, some patients whose left ventricular ejection fraction (LVEF) initially increases on BB therapy experience a subsequent LVEF decline. This study aimed to evaluate the proportion of patients with non-ischemic cardiomyopathy (NICM) whose LVEF declines while on BB therapy and determine important predictors of LVEF decline.

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Effect of Race on Left Ventricular Ejection Fraction Decline After Initial Improvement with Beta Blockers in Patients with Non-Ischemic Cardiomyopathy: A Retrospective Analysis