Mitral valve prolapse is a heart disorder where the mitral valve leaflets have extra tissue or become stretched and bulge (or prolapse) into the left atrium. The condition can be asymptomatic in some cases, but if it progresses and the floppy valve no longer closes properly, it can result in damage to the heart muscle, stroke, or even sudden cardiac death.
Other names used to describe mitral valve prolapse include the following:
- Barlow syndrome
- Billowing mitral valve syndrome
- Click-murmur syndrome
- Floppy valve syndrome
- Mitral prolapse
- Myxomatous mitral valve disease





