Atrial fibrillation, referred to as AF, is the most common clinical arrhythmia and has become a serious threat to people’s health. The prevalence of atrial fibrillation in the population is 0.4%, and it increases with age. Atrial fibrillation is a benign arrhythmia, but can cause discomfort and anxiety in patients; loss of atrial synchronous systolic function leads to hemodynamic changes resulting in varying degrees of congestive heart failure; in addition, stagnant blood flow in the left atrium increases the risk of thromboembolism. Atrial fibrillation can be divided into two main groups: the first group is paroxysmal and isolated atrial fibrillation, i.e., patients with atrial fibrillation without serious organic heart disease; the second group is atrial fibrillation complicated by organic heart disease. According to epidemiological studies in China, paroxysmal and isolated AF accounts for more than one third of the total number of patients. The current indications for surgical minimally invasive ablation for atrial fibrillation are: 1. Patients between 18 and 80 years of age; 3. Patients with significant symptoms of atrial fibrillation without serious organic heart disorders, heart valve disease, coronary artery disease, etc. that require surgical treatment; 4. Patients who are ineffective with antiarrhythmic drugs or who cannot tolerate drug therapy; 5. Patients with left ventricular ejection fraction greater than 30% on cardiac ultrasound; 7. Patients with previous A history of thromboembolism, such as stroke or transient ischemic attack; 8. Patients with recurrence of atrial fibrillation after catheter ablation. Minimally invasive cardiac surgery with radiofrequency ablation is now increasingly showing significant advantages in the application of treatment of isolated and paroxysmal atrial fibrillation where drugs are ineffective. The procedure has the following characteristics: 1. It is based on the key mechanisms of paroxysmal atrial fibrillation, such as bilateral pulmonary vein isolation; linear ablation of the left atrium; and vagus nerve ablation; and all of these operations are more intuitive, simple and effective than catheter ablation. 2. The risk of thrombosis and embolism due to atrial fibrillation is fundamentally eliminated by the removal of the left heart ear. 3. Patients do not need to experience prolonged x-ray exposure in catheter ablation, and there is no radiation damage. 4.During the treatment, the safety is good and the heart is in a normal beating state without cardiopulmonary diversion (extracorporeal circulation). 5. Under direct vision or surveillance, the ablation line is clear and accurate, and complications such as pulmonary vein stenosis can be completely avoided, and arrhythmias such as atrial tachycardia rarely occur after the procedure. 6. The operation time is short, the patient recovers quickly, and the incidence of surgical infection is extremely low. According to the statistics of more than 60 cases of paroxysmal atrial fibrillation patients who successfully performed minimally invasive ablation surgery in Beijing Anzhen Hospital, the operation took about 3 hours on average, and the tracheal intubation was removed 1 to 3 hours after the operation, and the patients basically had no postoperative pain, and were discharged from the hospital 3 to 7 days after the operation. 7, high effectiveness: according to international reports: paroxysmal atrial fibrillation as the main treatment target, and also includes strictly selected patients with permanent atrial fibrillation, at 6 months, the overall cure rate can reach 91.3%, and the patient does not take anti-arrhythmic drugs and anticoagulant drugs; 2 years after surgery, the overall cure rate is 80%; and no post-operative stroke occurred. 8. The cost is lower than that of catheter ablation. The advantages of minimally invasive cardiac surgery with radiofrequency ablation for atrial fibrillation: With the aid of thoracoscopy, the procedure is performed through a small incision in the chest with non-extracorporeal circulation, using advanced ablation energy devices to perform radiofrequency ablation of the epicardium while the heart is not beating, which has the advantages of small incision in the chest, no extracorporeal circulation, short operation time, small trauma, fast recovery, precise and rapid operation, few complications and high efficacy. Compared with traditional surgical ablation, the advantages are: small incision in the chest, no extracorporeal circulation, short operation time, small trauma, quick recovery, precise and rapid operation, few complications and high efficacy.