Treatment allocation | Randomised to usual care (n = 61) n (%) | Randomised to VRT (n = 60) n (%) |
---|---|---|
Minimisation criteria | ||
Age > 70 years | 17 (28) | 17 (28) |
Female gender | 10 (16) | 10 (17) |
Preoperative creatinine > 160 μmol/L | 3 (5) | 4 (7) |
Ejection fraction < 50% | 49 (80) | 49 (82) |
Cardiac angiogram in the 5 days prior to surgery | 5 (8) | 7 (12) |
Subgroup variables | ||
Low risk of renal failure | 37 (62)a | 38 (63) |
Oral diabetic medication only | 30 (49) | 35 (58) |