Abstract
Introduction: Renal failure is an important and well documented preoperative risk factor in cardiac surgery. There is a graded increase in operative morbidity with worsening preoperative renal function compared to patients with normal renal function. Elevated serum creatinine>100μmol/L has been identified as a predictor of red blood cell transfusion in previous studies, furthermore others showed it to be a strong predictor of ICU stay and mechanical ventilation. The aim of this study was to determine how increasing preoperative serum creatinine impacts on postoperative outcomes after elective aortic valve replacement surgery.
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