[Beating heart surgery for ischemic mitral regurgitation: report of a case].

A 51-year-old man was admitted to our hospital because of dyspnea. Coronary angiography revealed triple vessel disease and echocardiography demonstrated severe mitral regurgitation with poor left ventricular function. Under a diagnosis of ischemic mitral regurgitation, on-pump beating mitral annuloplasty and coronary artery bypass grafting using the normothermic retrograde continuous coronary sinus perfusion of oxygenated blood was performed in order to prevent reperfusion injury. The patient was easily weaned from cardiopulmonary bypass and his postoperative course was uneventful. Because of the advantages of this procedure (e.g., no reperfusion injury, testing of the mitral valve repair is done in real physiologic conditions with beating tonus), on-pump beating heart surgery seems a good surgical option for ischemic mitral regurgitation with poor left ventricular function.