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What is Quadricuspid aortic valve and explain in detail?
A quadricuspid aortic valve (QAV) is a rare congenital heart defect characterized by the presence of four cusps, instead of the usual three found normally in the aortic valve. It is a defect that occurs during embryological development of the aortic trunk during gestation. There is an increased risk of developing post-natal aortic regurgitations and other heart-related diseases; therefore patients with the condition should be carefully monitored.

Signs and symptoms
Complications
The most common complications of QAV are aortic regurgitations. This is caused by the inadequate closing of the four cusps at the end of systole