Long Standing Persistent Atrial Fibrillation

Catheter ablation has become as the first-line treatment for patients with symptomatic atrial fibrillation (AF). As the cornerstone of catheter ablation for AF, the safety and efficacy of circumferential pulmonary vein isolation (CPVI) have been confirmed. However, for persistent AF, especially for long-standing persistent AF (LSPAF), the recurrence rate is still high. Whether the ethanol infusion (EI) into the vein of Marshall (EI-VOM) and linear ablation could improve the success rate remains controversial. The SINUS study is a prospective, multicenter, randomized trial, which is designed to compare the efficacy and safety between CPVI with modified linear ablation (CPVI-MLA) and CPVI only for the treatment of LSPAF.