Aortic Valve Prolapse

**Definition:** The downward displacement of the cuspal or pointed end of the trileaflet AORTIC VALVE causing misalignment of the cusps. Severe valve distortion can cause leakage and allow the backflow of blood from the ASCENDING AORTA back into the LEFT VENTRICLE, leading to aortic regurgitation.

**Tree numbers:** - C14.280.484.048.625 - C14.280.484.400.100