In the United States about 10% of aortic stenosis is caused by rheumatic disease and the remainder by calcification of a unicuspid, bicuspid, or normal trileaflet valve. [11–14] Calcific aortic ...
Heart valves keep blood flowing in the right direction between the heart's four chambers. If a valve, such as the aortic or mitral valve, is diseased or faulty, it may require repair or, sometimes, ...