Characteristics of Low-Voltage Zones in Patients With Heart Failure With Preserved Ejection Fraction.
BACKGROUND Atrial fibrillation (AF) frequently coexists with heart failure with preserved ejection fraction (HFpEF), and low-voltage zones (LVZs) in the atria represent atrial remodeling. However, the impact of HFpEF on the extent and distribution of LVZs and ablation outcomes remains unknown. OBJECTIVE To characteri...