Electrogram Determinants of Acute Electrogram Attenuation During Pulmonary Vein Pulsed Field Ablation.
BACKGROUND Pulsed field ablation (PFA) is a nonthermal modality for pulmonary vein isolation in atrial fibrillation. Whether baseline intracardiac electrogram characteristics are associated with acute electrogram attenuation during PFA remains unclear. OBJECTIVES To evaluate the individual and combined associations o...