Table 4.

ARF scorea

Risk FactorPoints
Female gender1
Congestive heart failure1
Left ventricular ejection fraction <35%1
Preoperative use of IABP2
COPD1
Insulin-requiring diabetes1
Previous cardiac surgery1
Emergency surgery2
Valve surgery only (reference to CABG)1
CABG + valve (reference to CABG)2
Other cardiac surgeries2
Preoperative creatinine 1.2 to <2.1 mg/dl (reference to 1.2)2
Preoperative creatinine ≥2.1 (reference to 1.2)5
  • a Minimum score, 0; maximum score, 17.