The effect of atrial fibrillation surgery lasting for 8 years should be poor, but the left atrium is not large, so it is hard to say. You have high blood pressure and diabetes, and the probability of stroke in the future is relatively high. It is suggested that warfarin should be anticoagulated first, and the echocardiography should be checked in our hospital. If the left atrium is really not large, surgery is recommended. The left atrium is 45mm, so it is recommended to be conservative < P > I wish you a speedy recovery!