Mitral insufficiency is a disorder of the heart in which the mitral valve does not close properly. It is also called mitral regurgitation and more info can be found here: en.wikipedia.org/wiki/Mitral_regurgitationMitral

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Mitral Insufficiency is a type of heart disease. Your heart has four chambers with valves between them that regulate the flow of blood through your body. Mitral insufficiency occurs when the valves don't fully shut, results in a leaking of blood into the other chamber.

When the doctor listens to the heart sounds, mitral valve insufficiency is generally recognized by the sound the blood makes as it leaks backward. It sounds like a regurgitant murmur.

Patients treated by mitral valve repair for mitral insufficiency can expect improved myocardial function and relief of symptoms.