Leadless Pacemaker, Right Ventricular Pacing Burden, and Heart Failure.
BACKGROUND The optimal right ventricular pacing burden (%RVP) threshold associated with heart failure (HF) in patients with leadless pacemakers (LPs) remains unclear, whereas thresholds of 20% and 40% have been commonly used in studies of transvenous pacemakers. OBJECTIVE To assess the current %RVP cutoffs and explor...