IMPACT OF DIABETES ON EARLY AND MIDTERM OUTCOME OF CORONARY ARTERY BYPASS GRAFT SURGERY IN PATIENTS WITH LEFT VENTRICULAR DYSFUNCTION

Background and aim of the study: diabetes mellitus (dm) is an independant cardiovascular risk factor. It increases both the severity and the risk of coronary artery disease. The present study investigated patient characteristics, early postoperative outcome, and mid-term survival in dm and non-dm patients with left ventricular dysfunction after isolated coronary artery bypass grafting. Methods: we performed a retrospective study that included 112 patients (61 without m and 51 with) with low left ventricular ejection fraction (≤45%) undergoing coronary artery bypass graft surgery (CABG) from 1994 to 2012 with a mean follow-up time of 48?8 months. Results: dm patients differed from those without dm in terms of previous history of htn, mi and stroke. Diabetics were at higher risk for immediate postoperative sternal wound infection, and renal failure. 30 days operative mortality after CABG was 6.5% in non diabetic patients versus 5,8% in diabetic patients. However, 4 year mortality was 26,4% and 23,3% respectively. Conclusion: dm is associated with increased early postoperative (renal failure and sternal infection) but doesn?t impact operative mortality and midterm survival after coronary artery bypass graft surgery among patients with left ventricular dysfunction