Interference from lobe-and-disk left atrial appendage occluder affecting left superior pulmonary vein pulsed field ablation

Pulsed Field Ablation (PFA) employs high-voltage electroporation for tissue ablation, offering enhanced durability and minimized esophageal damage, thereby improving PVI safety ( 1 Della Rocca D.G. Marcon L. Magnocavallo M. et al. Pulsed Electric Field, Cryoballoon, and Radiofrequency for Paroxysmal Atrial Fibrillation Ablation: A Propensity Score-Matched Comparison. Europace. 2024 Jan 20; (euae016) Google Scholar ). Electrical arcing is a possible complication of high-intensity electric field delivery, which may occur when the current flows from one conductive point to another. The phenomenon is influenced by factors like electric field strength and tissue properties and may ultimately lead to significant temperature rise and tissue charring.