Asian cardiovascular & thoracic annals
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Asian Cardiovasc Thorac Ann · Jun 2012
Risk factors and outcomes of acute renal failure after open cardiac surgery.
The incidence, risk factors, and outcome of acute renal failure following open cardiac surgery were assessed prospectively in 5,164 consecutive patients undergoing open heart surgery between March 2006 and February 2011. Acute postoperative renal failure (creatinine>1.5 mg·dL(-1) within 3 days after surgery) developed in 64 (1.2%) patients with normal preoperative renal function (study group). A control group of 238 cardiac surgery patients who had postoperative creatinine levels≤1.5 mg·dL(-1) were selected randomly during the study period. ⋯ Five of the 10 patients (50%) who needed dialysis died. The most significant prognostic factor for mortality was cardiac dysfunction. This study confirmed that impairment of renal function after cardiac surgery is uncommon without preoperative renal impairment, but carries an increased mortality rate.