Degeneration and calcification. The most common cause of aortic stenosis is, essentially, “wear and tear.” In some individuals, with the passage of time the aortic valve begins to degenerate, and when this happens calcium accumulates on the valve, creating irregular, rock-like deposits. These calcium deposits infringe on the valvular opening, causing a narrowing of that opening, or aortic stenosis. This condition can be helped by proper diet, heart friendly diet and exercise.
There is a bicuspid syndrome that is congenital, and this condition includes tissue abnormality of the aorta valve, root, and ascending vessel. About 1% of all males are born with a bicuspid aortic valve. (That is, their aortic valves, which are supposed to have three cusps, have only two.) Bicuspid valves are especially prone to developing degeneration and calcification, and thus aortic stenosis. Men with aortic stenosis due to bicuspid valves develop symptoms in their 40s and 50s. In contrast, patients whose degenerative aortic stenosis develops on normal, tricuspid valves begin to have symptoms two or three decades later