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The presence of a mild to moderate ischemic mitral regurgitation (IMR) results in a significantly reduced long-term survival and increased hospitalizations for heart-failure. The benefit of adding mitral valve surgery to coronary artery by-pass surgery (CABG) is well documented in the combination of coronary artery disease and severe MR. On the other hand, it is clinical practice to refrain from repairing the mitral valve in those CABG cases where the IMR is mild to moderate. However, there are no conclusive data available to support this principle. The existing studies are small, retrospective, and the results contradictive. The need for a prospective randomized trial has frequently been proposed and discussed, however, to the best of our knowledge, such a study has not yet commenced.
The Moderate Mitral Regurgitation In Patients Undergoing CABG (MoMIC) Trial is the first international multi-center, large-scale study to clarify whether moderate IMR in CABG patients should be corrected. A total of 550 CABG patients with moderate IMR are to be randomized to either CABG alone or CABG plus mitral valve correction.
If correction of moderate MR in CABG patients is the superior strategy, this should be offered to all patients in this entity.
Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Single Blind (Outcomes Assessor), Primary Purpose: Treatment
Moderate Mitral Regurgitation
CABG alone, CABG + Mitral repair
Dep. of Cardiothoracic Surgery, Aarhus University Hospital, Skejby,
University of Aarhus
Published on BioPortfolio: 2014-08-27T03:33:02-0400
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The purpose of this study is to assess whether adding mitral valve repair to coronary artery bypass grafting improves outcome in patients with ischemic mitral regurgitation.
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Mitral valve repair for ischemic mitral regurgitation is performed primarily by annuloplasty. There is some degree of late failure, which may be due in part to the type of ring employed. W...
Moderate ischemic mitral regurgitation (MR) is often present in patients undergoing coronary artery bypass grafting (CABG). However, the clinical benefit of repairing moderate MR during CABG is unprov...
Introduction Moderate mitral regurgitation (MR) of ischemic etiology has been associated with worse outcomes after coronary artery bypass grafting (CABG). Studies comparing concomitant mitral valve ...
Treatment of ischemic mitral incompetence (IMI) is an important problem in cardiovascular surgery, and it is arguing to the best strategies for surgical treatment of IMI. IMI can be quantitative asses...
Ischemic mitral regurgitation (IMR) is a common complication of coronary artery disease and represents an independent predictor of mortality. In the IMR the pattern of mitral valve annular dilatation ...
Backflow of blood from the LEFT VENTRICLE into the LEFT ATRIUM due to imperfect closure of the MITRAL VALVE. This can lead to mitral valve regurgitation.
Abnormal protrusion or billowing of one or both of the leaflets of MITRAL VALVE into the LEFT ATRIUM during SYSTOLE. This allows the backflow of blood into left atrium leading to MITRAL VALVE INSUFFICIENCY; SYSTOLIC MURMURS; or CARDIAC ARRHYTHMIA.
A type of heart valve surgery that involves the repair, replacement, or reconstruction of the annulus of the MITRAL VALVE. It includes shortening the circumference of the annulus to improve valve closing capacity and reinforcing the annulus as a step in more complex valve repairs.
Narrowing of the passage through the MITRAL VALVE due to FIBROSIS, and CALCINOSIS in the leaflets and chordal areas. This elevates the left atrial pressure which, in turn, raises pulmonary venous and capillary pressure leading to bouts of DYSPNEA and TACHYCARDIA during physical exertion. RHEUMATIC FEVER is its primary cause.
A condition characterized by a combination of OSTIUM SECUNDUM ATRIAL SEPTAL DEFECT and an acquired MITRAL VALVE STENOSIS.
Cardiology is a specialty of internal medicine. Cardiac electrophysiology : Study of the electrical properties and conduction diseases of the heart. Echocardiography : The use of ultrasound to study the mechanical function/physics of the h...