Therapy Principles in Ischemic Mitral Regurgitation

Ischemic mitral regurgitation (IMG) is the mitral regurgitation that is determined by the ischemic coronary disease and must be differentiated from the mitral regurgitation, which coexists with ischemic coronary disease. It appears secondary to acute myocardial infarction with angiographic or echocardiographic signs of contraction anomaly of left ventricle in a region vascularized by a critically stenosed coronary artery (1-3).
Ischemic mitral regurgitation is determined by an excess of tethering of one or both mitral valves, as a result of displacement of one or both papillary muscles. All patients have anterior acute myocardial infarction with regional anomaly of left ventricle wall contraction. Statistically, approximately 80% display posterior infarction and 20% anterior infarction (4).