Is preoperative serum creatinine a reliable indicator of outcome in patients undergoing coronary artery bypass surgery?
OBJECTIVE: Evaluating renal function by calculating creatinine clearance as an alternative measure to serum creatinine may give a better estimation of postoperative renal function in patients undergoing coronary artery bypass grafting. METHODS: Using our database, we conducted a retrospective review of the records of all 11,884 patients aged 21 years or older undergoing pure bypass grafting who required cardiopulmonary bypass. Preoperative renal function was categorized as normal renal function (serum creatinine 60 mL/min), occult renal insufficiency (serum creatinine 1.5 mg/dL and creatinine clearance
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