Aortic narrowing surgery has certain risks. The aorta supplies blood to the whole body, just like an electrical circuit, and when there is an abnormality, food in the refrigerator will expire, television cannot be watched, and the Internet cannot be connected, so people can become irritable and anxious. Aortic narrowing surgery takes longer, is more traumatic and has certain risks. The surgical mortality rate is about 0%-4%, and the causes of death are bleeding and cardiac insufficiency. However, if patients do not undergo surgery, 90% of patients may develop heart failure or distal or proximal aneurysmal dilatation of the narrowed segment, forming aneurysms, intracardiac infections or cerebral hemorrhage, and patients generally do not live longer than 50 years. Nowadays, the average life expectancy of aortic stenosis is between 30-40 years. If a patient has a pressure difference of 22.5 mmHg at both ends of the stenotic segment, immediate surgery is required.