Catheter Ablation of Premature Ventricular Contractions Originating in the Aortic Sinus Cusp or Great Cardiac Vein: Two QRS Morphologies with One Origin

摘要

BackgroundPremature ventricular contractions (PVCs) originating from aortic sinus cusps (ASCs) can exhibit preferential conduction to right ventricular outflow tract (RVOT).