Patient: Atrial fibrillation has occurred for more than three years, mostly at night, with a chaotic heart rate, panic and fear. Went to hospital with medication to repeat the rate. At first it was several times a year. Now a few times a month. Most of the time, I take cardioplegia at home for two to five hours. A small number of times without medication for about two hours. It can turn on its own. Professor Liu, is this symptom paroxysmal or persistent? Shanghai First People’s Hospital, Department of Cardiology, Liu Shaojian: It belongs to paroxysmal atrial fibrillation, if not combined with other heart diseases, the success rate is about 90%, and the cost of our hospital is about 80,000.