[Efficacy of Pulmonary Vein Isolation in the Surgical Treatment of Atrial Fiburillation].

Background: Maze surgery is often performed for atrial fibrillation during cardiac surgery, and a certain number of therapeutic effects are observed. However, the effectiveness of pulmonary vein isolation (PVI) remains unclear.

Methods: 329 arrhythmia surgeries was performed between 2012 and 2021. The patients were divided into three groups:paroxysmal atrial fibrillation (PAf) group, persistent atrial fibrillation group (PerAf), and long persistent atrial fibrillation( LongPerAf) group. In the PVI and maze groups, postoperative sinus rhythm rate and the rate of freedom from Af recurrence were compared.

Results: In PAf, PerAf cases, there was no difference between PVI and maze groups in the rate of freedom from recurrent Af and postoperative sinus rhythm rate. In LongPerAf cases, the rates of freedom from recurrent Af and postoperative sinus rhythm were significantly lower in the PVI group.

Conclusion: PVI was considered effective in patients with atrial fibrillation of less than one year duration due to the simplicity of the procedure and low complications.