Disorder of mitral valve (MV) closure, either primary or secondary (functional), resulting in a backflow of the left ventricular (LV) stroke volume into the left atrium (LA); uncompe...
Associated conditions: RHD, prior MI, connective tissue disorder
Sudden onset of dyspnea
Orthopnea, paroxysmal nocturnal dyspnea
Exertional dyspnea, fatigue
Acute, severe MR
Medical therapy has a limited role and is aimed to stabilize hemodynamics preoperatively.
Vasodilators (nitroprusside, nicardipine): to improve hemodynamic compens...
Mild MR with normal LV size and function and no pulmonary hypertension: annual clinical evaluation and TTE every 3 to 5 years
Acker MA, Parides MK, Perrault LP, et al; for Cardiothoracic Surgical Trials Network. Mitral-valve repair versus replacement for severe ischemic mitral regurgitation. N Engl J Med. ...
I34.0 Nonrheumatic mitral (valve) insufficiency
I05.1 Rheumatic mitral insufficiency
Q23.3 Congenital mitral insufficiency
424.0 Mitral valve disorders
394.1 Rheumatic mitral insufficiency
Follow-up for mild to moderate MR: serial exam and/or echo unless LV structural changes
Severe MR is usually managed with MV repair.
Endocarditis prophylaxis is not recommended.
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