Does microalbuminuria in diabetic patients affect the postoperative course after coronary artery bypass surgery?
Objectives: Microalbuminuria is a predictor of microvascular disease and a marker for multiorgan damage in diabetic patients. It has been proposed that in diabetic patients who would undergo coronary artery bypass surgery (CABG), microalbuminuria is associated with poor postoperative outcome, higher incidence of early and late morbidity and mortality. Methods: Microalbuminuria was prospectively studied preoperatively in 24-h urinary collections for 257 consecutive diabetic patients in a 2-year period. One hundred and sixty-eight patients (65.4%) were defined as microalbuminuria negative (Group A), and 89 (34.6%) were microalbuminuria positive (Group B) with respect to the cut-off point 30 mg/24 h. Results: The two groups did not differ with respect to preoperative and operative data, except that preoperative blood glucose levels (P=0.046), blood urea nitrogen (P=0.001), and creatinine (P=0.001) were higher and creatinine clearance was lower (P=0.025) in Group B. Postoperative serum cre
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