Heart aortic valve replacement

Aortic valve replacement is actually aortic valve replacement. The aortic valve is mainly located between the left ventricle and the aorta. Its main function is to prevent blood from the aorta from flowing back into the left ventricle. When conditions such as aortic valve stenosis and aortic valve regurgitation occur, surgical treatment is required, that is, heart replacement of the aortic valve. Below we mainly understand the indications for heart replacement of the aortic valve.

Indications 1. Aortic valve stenosis (1) Strong indications ① Patients with symptomatic severe aortic valve stenosis. ② Patients with severe aortic valve stenosis undergoing surgical coronary artery bypass grafting. ③ Patients with severe aortic stenosis undergoing aortic valve and other valve leaflet surgery. ④ Patients with severe aortic valve stenosis and left ventricular systolic dysfunction (ejection fraction <0.50). (2) Situations where there is a reason to perform aortic valve replacement: when patients with moderate aortic stenosis undergo coronary artery bypass grafting, aortic surgery, or other valve surgery. (3) Situations in which aortic valve replacement may be considered: ① Patients with aortic valve stenosis who are asymptomatic and have abnormal responses to exercise (such as developing symptoms, asymptomatic hypertension). ② Patients with asymptomatic severe aortic valve stenosis who are likely to have rapid progression of the disease (such as age, calcification, coronary heart disease) or who cannot undergo surgery in time when symptoms appear. ③ Patients with mild aortic valve stenosis undergoing coronary artery bypass grafting when there is evidence of rapid progression of the lesion (such as moderate to severe valvular calcification). ④ Patients with no symptoms but extremely severe aortic stenosis (aortic valve area <0.6cm2, average gradient >60mmHg, jet velocity >5m/s), and an estimated surgical mortality rate of less than 1%. Aortic valve replacement does not prevent sudden death in asymptomatic patients with aortic stenosis who do not have the above conditions.