Effect of Catheter Ablation With vs Without Vein of Marshall Ethanol Infusion on Persistent Atrial Fibrillation
This randomized trial compares the effect of transcatheter pulmonary vein isolation during catheter ablation with vs without ethanol infusion into the vein of Marshall, an embryologic remnant of the left superior vena cava implicated in atrial fibrillation pathogenesis, on freedom from atrial…