Patient: male, 60 years old, chest tightness and palpitations for one year, paroxysmal atrial fibrillation for 2-3 years, persistent atrial fibrillation after the Spring Festival this year, large left atrium and left ventricle, left atrial internal diameter 43mm, left ventricular diastolic internal diameter 57mm, left ventricular closing internal diameter 39mm, left ventricular ejection fraction: 59%, no history of hypertension, no history of long-term alcohol consumption. What is the success rate of the procedure and what is the possibility of recurrence? Liu Shao-stable, Department of Cardiology, Shanghai First People’s Hospital: Atrial fibrillation ablation is suitable, the success rate of persistent atrial fibrillation is 70-80%, there is a possibility of recurrence, the out-of-pocket cost is about 80,000.