What do mitral valve prolapse, mitral valve stenosis, and aortic regurgetation cause?
From the Mayo clinic: * Mitral valve prolapse. Mitral valve prolapse is a condition in which the leaflets and tendon-like cords supporting the mitral valve weaken. The result is that with each contraction of the left ventricle, the valve leaflets bulge (prolapse) up into the left atrium. This common heart defect may prevent the mitral valve from closing tightly and lead to regurgitation. However, mitral valve prolapse is common and most people who have it never develop severe regurgitation. * Damaged tissue cords. Mitral valve regurgitation may result from damage to the tissue cords that anchor the flaps of the mitral valve to the heart wall. Over time, these cords may stretch or suddenly tear, especially in people with mitral valve prolapse. A tear of these cords can cause substantial leakage through the mitral valve and may require repair by heart surgery. * Rheumatic fever. Rheumatic fever — a complication of untreated strep throat and once a common childhood illness in the United S
