What is mitral valve prolapse (MVP)?

Mitral valve prolapse (MVP) is bending backwards of the mitral valve as it closes when the left ventricle contracts. Left ventricle is the lower left chamber which pumps oxygenated blood to the whole body. Mitral valve is the valve between the left upper and lower chambers of the heart. Too much of bending may produce a leak in the mitral valve. When the mitral valve is leaky, blood flows back into the left atrium, when the left ventricle contracts. Left atrium is the upper chamber from which the left ventricle receives blood when it relaxes after a contraction.