What does it mean to have mitral valve prolapse syndrome?

Often nothing!: Mitral valve prolapse, once said to be a cause of many symptoms, is often a harmless finding, esp in young individuals. When it is accompanied by significant leakage back across the vale (mitral regurgitation), it can be a serious finding. Thus, if it is just a click heard listening to the heart, don't worry. Your doctor may want to order an echocardiogram if not sure.

Loose mitral valve: Mitral valve prolapse refers to the valve between the left atrium and the left ventricle of your heart is bowing far back into the left atrium when the left ventricule squeezes and is often associated with mitral regurgitation, or blood flowing back into the left atrium from the left ventricle. Due to loose or turn chordae (muscle fibers), which normally prevent the valve from prolapsing.