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Health Library Explorer
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A-Z Listings Contact Us

Heart Valve Problems: Aortic Stenosis

Aortic stenosis means your aortic valve has a problem opening. The aortic valve is 1 of the heart’s 4 valves. It is on the left side of the heart. It sits between the left lower chamber (left ventricle) and the large blood vessel that sends blood to the body (aorta). With aortic stenosis, the left ventricle has to work harder to push the blood through the valve. In some cases, this extra work will make the muscle of the ventricle thicken. In time, the extra work can tire the heart and cause the heart muscle to weaken.

Stenosis usually gets worse slowly, over many years. But sometimes, it can quickly get worse.

Top view of open aortic valve with stenosis.
Open aortic valve with stenosis (viewed from above).
Cross section of heart showing aortic valve with stenosis.
Cross section of heart showing aortic valve with stenosis.

Possible causes

Calcium deposits can form on the aortic valve as you get older. These deposits make the valve stiff and hard to open. In some cases, you may have been born with an abnormal aortic valve. Or your aortic valve may have been damaged by rheumatic fever or a heart infection. Radiation therapy used as treatment for cancers such as lymphoma, may be a cause.

Treating aortic stenosis

In many cases, treatment won’t be needed unless you have symptoms. If you do have symptoms, medicines may help relieve them. If the stenosis is severe, your healthcare provider may advise surgery to replace the valve. Or you may have a catheter-based procedure (transcatheter aortic valve replacement or TAVR) to replace the valve, even if you don’t have symptoms.

Online Medical Reviewer: Glenn Gandelman MD MPH
Online Medical Reviewer: Lu Cunningham
Online Medical Reviewer: Mandy Snyder APRN
Date Last Reviewed: 7/1/2019
© 2000-2021 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
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Click here for more info on Coronavirus (COVID-19), vaccines, and visitor restrictions.
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Kettering Health Network (ketteringhealth.org)
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Diseases & Conditions

Get details on symptoms, causes, and treatment options plus related articles, videos & more.