It is the narrowing of the opening of the aortic valve in the heart, which increases resistance to blood flow from the left ventricle to the aorta; commonly a birth defect or caused by scarring and calcium accumulation in the valve from rheumatic fever.

Reference:

•American Medical Association Definitions of Medical Terms – https://www.ama-assn.org

Leave a Reply

Your email address will not be published. Required fields are marked *