Long-Term Heart Rate Reduction Induced by the Selective I f Current Inhibitor Ivabradine Improves Left Ventricular Function and Intrinsic Myocardial Structure in Congestive Heart Failure

Abstract
Background— Heart rate reduction (HRR) improves left ventricular (LV) filling, increases myocardial O2 supply, and reduces myocardial O2 consumption, which are all beneficial in congestive heart fa...