Effect of systematic downsizing rigid ring annuloplasty in patients with moderate ischemic mitral regurgitation

Appropriate management of functional ischemic MR at the time of CABG is unknown.  This study randomized 31 patients with moderate functional ischemic MR to CABG alone or in combination with ring annuloplasty.  Moderate differences in outcomes were evident at 3 months, but at 12 months the groups were similar in LVEF and MR improvement.