stenosis (aortic)

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Aortic stenosis is a common heart lesion that may occur in isolation or in combination with other heart defects. In the majority of cases, the aortic valve itself is narrowed by congenital deformity; for example, it may be bicuspid instead of tricuspid. Stenosis may then worsen with age as a result of thickening and calcification of the valve cusps.

Last reviewed 01/2018