Table 1.
Baseline characteristics
| Preoperative characteristics | |
|---|---|
| Gender, n (% men) | 24 (80%) |
| Age (year) | 68.0 ±1.71 |
| Body weight (kg) | 87.4 ±2.95 |
| Body surface area (m2) | 2.0 ±0.04 |
| Preoperative left ventricular ejection fraction (%) | 43 ±3 |
| Diabetes type 2, n (%) | 7 (23%) |
| Hypertension, n (%) | 15 (50%) |
| Preoperative serum creatinine (μmol/L) | 86.5 ±3.00 |
| Preoperative Higgins risk score n = 19 | 3.6 ±0.46 |
| Preoperative treatment: | |
| Angiotensin-converting enzyme inhibitor, n (%) | 18 (60%) |
| Beta-adrenergic blocker, n (%) | 24 (80%) |
| Calcium antagonists, n (%) | 3 (10%) |
| Perioperative characteristics | |
| Type of surgery | |
| Coronary artery bypass surgery, n (%) | 12 (40%) |
| Valve, n (%) | 5 (17%)) |
| Combined, n (%) | 7 (23%) |
| Other, n (%) | 4 (13%) |
| Redo CABG/Valve | 2 (7%) |
| Nonelectivea, n (%) | 9 (30%) |
| Cardiopulmonary bypasstime (min) | 145.9 ± 12.65 |
| Aortic cross clamp time (min) | 81.8 ± 8.88 |
| Intensive care unit Higgins risk score | 9.1 ± 0.93 |
| Postoperative (day 1) serum creatinine (μmol/L) | 119.2 ±5.59 |
Data are presented as means ± SEM. a Surgery performed within 24 hours after referral.