Causes
The main causes of aortic stenosis include:
-
A birth defect of the aortic valve, which normally has three cusps:
- An aortic valve that has only one cusp or is otherwise stenotic from birth
- A bicuspid (two-part) aortic valve with progressive wear and tear
- Progressive calcification of the aortic valve with age (most common in elderly)
- Rarely, scarring of the aortic valve caused by rheumatic fever
