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  • Title: Mitral valve annuloplasty and myocardial revascularization in the treatment of ischemic dilated cardiomyopathy.
    Author: Nicolini F, Zoffoli G, Cagnoni G, Agostinelli A, Colli A, Fragnito C, Borrello B, Beghi C, Gherli T.
    Journal: Heart Vessels; 2006 Jan; 21(1):28-32. PubMed ID: 16440145.
    Abstract:
    The aim of this study was to examine perioperative mortality and morbidity and midterm results in patients undergoing coronary bypass graft and mitral valve annuloplasty with advanced dilated cardiomyopathy. Sixty-one patients with ischemic dilated cardiomyopathy underwent coronary artery bypass grafting and mitral valve annuloplasty between January 1998 and December 2003. Patients eligible for revascularization that presented a mild or more severe mitral valve regurgitation at echocardiography (effective regurgitant orifice > 0.2 cm(2)) were considered for annuloplasty with a Cosgrove ring. New York Heart Association class (NYHA) III/IV was present in 40 patients (66%) and Canadian Cardiovascular Society class III-IV in 19 (31%). A previous acute myocardial infarction was reported in 48 patients (79%). The mean number of graft anastomoses was 2.5 +/- 0.7 and the left internal mammary artery was used in 49 patients (80%). In-hospital mortality was 4.9% (3 patients), due to unsuccessful weaning from cardiopulmonary bypass, multiple organ failure, and stroke, respectively. Left ventricle ejection fraction improved from 28.9% +/- 5.2% preoperatively to 35.4% +/- 8.1% at follow-up (P = 0.0001) and a significant reduction in NYHA III/IV was detected: from 40 patients preoperatively (66%) to 14 (31%) at follow-up (P = 0.031). Midterm cardiac-related mortality rate was 3.4%. In our experience combined coronary artery bypass grafting and ring annuloplasty for ischemic dilated cardiomyopathy can be performed with acceptable risks for in-hospital mortality and morbidity. Midterm results show a good survival rate and a durable functional improvement in this subset of patients.
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