Definitions for "Mitral insufficiency"
A leak or flow of blood back through the mitral valve into the top left chamber of the heart (the atrium) and the lungs. It occurs when the mitral valve does not completely close.
Mitral insufficiency is a condition where blood in the left ventricle leaks back through the mitral valve into the left atrium and can back into the lungs. The mitral valve normally opens to allow blood to flow into the left ventricle and then closes, preventing blood from backing up into the atrium during the ventricle's contraction.
a problem with the ability of the mitral valve in the heart to close, which causes the heart to pump harder and reduces its efficiency