One-year outcomes of concomitant mitral reduction annuloplasty repair with coronary artery bypass grafting for moderate ischemic mitral regurgitation

摘要

Background Mitral valve repair for chronic ischemic mitral regurgitation (IMR) in the published literature has contradictory outcomes. Here, we report our center outcomes of reduction annuloplasty technique in addition to myocardial revascularization to treat ischemic IMR over a four-year period. Methods Between January 2011 and December 2014, a total of 40 patients were identified to have a reduced left ventricular ejection fraction who underwent first-time mitral valve reduction annuloplasty concomitantly with coronary artery bypass grafting to treat moderate IMR. Variations in left ventricular end-systolic volume index (LVESVI), left ventricular ejection fraction (LVEF), functional class, and mitral regurgitation (MR) was followed up after surgery and retrospectively analyzed. Results In our cohort, mitral reduction annuloplasty was successful in helping 33 (82%) patients to have no residual MR and to downgrade their MR from moderate (grade 3+) to trace (grade 1+) in 7 (18%) patients before leaving the operating room. A change from baseline value was observed secondary to correction of MR. At 3-months follow-up time; the mean MR grade that was 0.2?±?0.1 by the intraoperative assessment post-bypass has increased significantly to be 1.8?±?0.4 (p??0.05) at early follow-up time, mean LVESVI improved significantly to be 47.6?±?11.0?ml/m 2 , p?