When a doctor listens to the heart of a person with a heart murmur, they may hear a whooshing, swishing, humming, or rasping sound. This is due to rapid, turbulent blood flow through the heart.

An aortic stenosis murmur is an unusual sound the heart makes due to a narrowing of the aortic heart valve. The narrowed heart valve restricts blood flow from the heart, which can create a murmur.

Aortic stenosis is a narrowing of the aortic valve that produces a high-pitched “whooshing” murmur, which is often the first noticeable sign of the condition. Murmurs are graded from 1 to 6 based on ...