ABSTRACT
This study was planned [a] to document the hospital morbidity and mortality of patients undergoing CABG surgery, who had preexisting renal impairment, [b] to document further deterioration in renal dysfunction in these patients.[c] to evaluate the safety profile of coronary artery by pass grafting [CABG] surgery in such patients. A total of 63 patients with documented chronic renal dysfunction underwent CABG. These patients were divided into three groups; [1] Those with serum creatinine level up to 3.5mg%. [2] Those with serum creatinine level more than 3.5mg%, and [3] those patients already on regular haemodialysis. The commonest cause of renal impairment was diabetes mellitus. Most of the patients did very well after surgery. Renal function deteriorated in significant number of patients. All these patients required an extended I. C. U and hospital stay. Low cardiac output, need for prolonged ventilation, fluid overload, thin coronaries and obesity were found to be the major risk factors for deterioration in renal function