What is the definition or description of: bicuspid aortic valve?

Abnormal heart valve: A bicuspid aortic valve is a condition that is present from birth. The aortic valve doesn't form normally, resulting in a narrowing of the valve. This narrowing causes the heart to work harder to pump blood, which can cause heart problems in the long term. People with bicuspid aortic valves usually require valve replacement surgery at some point in their lives. Bicuspid valves run in families.

Aortic valve: Normal aortic valve has three leaflets. Bicuspid aortic valve developmental abnormality that has two leaflets instead of three. Looks like fish mouth. Prone to disease over time does create murmur frequently. Calcium deposits on valve can cause aortic stenosis limited excursion restricts flow. Can be higher risk for infection.