Mitral valve disease
When the mitral valve does not work properly, your heart must work harder resulting in an enlarged, weakened heart.
The mitral valve, one of the heart’s four valves, connects the left atrium to the left ventricle. Within the mitral valve are flaps, called leaflets, which open and close to allow or restrict blood flow in only one direction. The opening of the flaps allows blood to flow from the left atrium to the left ventricle. In turn, the flaps close to prevent the backflow of blood into the left atrium.
There are three types of mitral valve disease: mitral valve prolapse, mitral stenosis, and mitral regurgitation.