Common causes of chronic mitral insufficiency are rheumatic heart disease, endocarditis, congenital anomaly, and idiopathic calcification of the mitral annulus, which inhibits valve closure. Calcification associated with aging has been found on autopsies; however, with most patients, there was a minimal functional consequence. Connective tissue diseases (Marfan's syndrome, Ehlers-Danlos syndrome) are also associated with mitral insufficiency. Mitral valve prolapse, a common form of mitral insufficiency, occurs with degeneration of mitral leaflets, which causes a "floppy valve." Acute mitral insufficiency can occur with myocardial infarctions that have been caused by ischemia or necrosis of the papillary muscle or by chordae tendineae that support the mitral leaflets.

Your Heart and Nutrition

Your Heart and Nutrition

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