PARTICIPANTS:
18 years or older	Yes	No
Under 18 years	Yes	No
Equal distribution of age	Yes	No
Equal distribution of gender	Yes	No
Heart surgery with CPB	Yes	No
Elective surgery	Yes	No
Urgent, emergency or salvage surgery	Yes	No
Aortic valve replacement	Yes	No
Mitral valve replacement	Yes	No
Coronary artery bypass surgery	Yes	No
Double procedure	Yes	No
Surgery for congenital heart defects	Yes	No
Pulmonary hypertension (PAMP > 25 mmHg)	Yes	No
Reduced lung function (FEV1 < 80 PP)	Yes	No
Preoperative normal renal function (P‐creatinine from 50‐90 µmol/L)	Yes	No
IDDM	Yes	No
Recent MI (within 3 months before surgery)	Yes	No
LV function good (LVEF > 50%)	Yes	No
LV function moderate (LVEF 31%‐50%)	Yes	No
LV function poor (LVEF 21%‐30%)	Yes	No
LV function very poor (LVEF ≤ 20%)	Yes	No