Quadricuspid aortic valve is a very rare congenital malformation, far less common than unicuspid or bicuspid aortic valve. It usually appears as an isolated congenital anomaly but it may also be associated with some other malformations. Quadricuspid aortic valve in association with other congenital anomalies is extremely rare but coronary artery anomalies are the most common associated congenital cardiac malformations. Aortic regurgitation appears to be the most common hemodynamic abnormality associated with quadricuspid aortic valve. Echocardiography is increasingly useful in detecting quadricuspid aortic valve. If this anomaly is found incidentally, continual follow-up is recommended. We report such a patient with a complaint of palpitation and incidental echocardiographic diagnosis of quadricuspid aortic valve.
Keywords: Quadricuspid aortic valve type a, congenital cardiac malformation