Minimally invasive ablation surgery is much less risky than open-heart labyrinth surgery. Because minimally invasive ablation does not require the establishment of extracorporeal circulation, the heart is beating during the procedure, thus avoiding complications such as cerebral embolism caused by extracorporeal circulation and the danger of cardiac arrest. Minimally invasive ablation surgery uses a small intercostal incision without sawing through the sternum or even cutting off the ribs, thus avoiding complications of poor bone healing after surgery and greatly reducing a series of complications such as incisional infection. Although minimally invasive ablation surgery is a surgical procedure, the risks are still much smaller than those of interventional catheter radiofrequency ablation. Because the surgical operation is performed under direct vision, accidental injury during ablation is avoided. Since the isolation of the pulmonary veins on both sides of the maze procedure does not cauterize the pulmonary veins like catheter ablation, but rather the ablation is performed over the atria, thus avoiding the most common complication of catheter ablation: pulmonary vein stenosis. In addition, while catheter ablation has been reported to cause pericardial tamponade resulting in patient death due to burning through the atria, minimally invasive ablation under direct vision does not carry this risk, and Dr. Wolf in the United States has performed nearly 1000 minimally invasive ablation procedures without any of these complications. Therefore, minimally invasive ablation is a very safe, simple and effective new surgical procedure.