Atrial fibrillation (AF) is the most common arrythmia found in clinical treatment and is one of the most important reason for heart failure and stroke. Many cardiac electro physiologists focus on it in China and internationally. The therapy of AF includes two parts: medication and operation. However, both of these treatments are not the best ways since both result in some syndromes and high recrudescence. Therefore, the treatment and prevention of AF is a great challenge in the cardiac clinical field....