What is aortic stenosis?
Aortic valve stenosis (AS) is a disease of the aortic valve in which the opening of the valve is narrowed (stenotic).
This typically results from calcium that is deposited in the valve as people age. The calcium causes narrowing of the valve and prevents it from opening normally.
The normal size of the aortic valve is the size of a half dollar; a severely stenotic valve may be the size of a dime or smaller.
What are the symptoms of
What are the causes of