Table 3 Preoperative demographic characteristics and intraoperative variables in patients with or without AKI
Variable | AKI (n = 47) | No AKI (n = 251) | P value |
|---|---|---|---|
Age > 75 years | 8 (17.0%) | 52 (20.7%) | 0.5620 |
Female sex | 10 (21.3%) | 50 (19.9%) | 0.8315 |
BMIÂ >Â 25Â kg/m2 | 20 (42.6%) | 84 (33.5%) | 0.2303 |
Comorbid disease | |||
 Hypertension | 45 (95.7%) | 226 (90.0%) | 0.2111 |
 Hyperlipidemia | 40 (85.1%) | 216 (86.1%) | 0.8637 |
 Diabetes mellitus | 29 (61.7%) | 107 (42.6%) | 0.0160 |
 Ejection fraction < 35% | 6 (12.8%) | 22 (8.8%) | 0.4131 |
 Atrial fibrillation | 2 (4.3%) | 12 (4.8%) | 1.0000 |
 Peripheral vascular disease | 9 (19.2%) | 70 (27.9%) | 0.2128 |
 Cerebrovascular disease | 9 (19.2%) | 58 (23.1%) | 0.5508 |
Preoperative laboratory data | |||
 Hemoglobin level < 8 g/dL | 0 (0%) | 1 (0.4%) | 1.0000 |
 Albumin level < 4 g/dL | 21 (44.7%) | 85 (33.9%) | 0.1551 |
 eGFR mL/min/1.73 m2 | 62.6 ± 20.4 | 64.2 ± 17.5 | 0.5745 |
 eGFR < 60 mL/min/1.73 m2 | 17 (36.1%) | 95 (37.9%) | 0.8274 |
Preoperative clinical condition | |||
 CAG within 7 days | 13 (27.7%) | 62 (24.7%) | 0.6680 |
 Emergent operation | 12 (25.5%) | 49 (19.5%) | 0.3487 |
 Intra-aortic balloon pumping | 12 (25.5%) | 34 (13.6%) | 0.0369 |
Intraoperative variable | |||
 Lowest BE level | − 3.7 ± 2.0 | − 3.4 ± 2.4 | 0.3491 |
 Highest lactate level (mmol/L) | 1.5 ± 0.6 | 1.3 ± 0.6 | 0.1807 |
 Lowest hemoglobin level (g/dL) | 8.3 ± 0.9 | 8.2 ± 0.8 | 0.8708 |
 Lowest CI < 1.8 (L/min/m2) | 18 (41.9%) | 84 (40.4%) | 0.8576 |
 Furosemide administration | 13 (27.7%) | 15 (6.0%) | < 0.001 |
 Carperitide administration | 8 (17.0%) | 28 (11.2%) | 0.2574 |
 Noradrenaline > 0.1 μg/kg/min | 12 (25.5%) | 84 (33.4%) | 0.3126 |
 Total urine output (ml) | 1209 ± 948 | 1458 ± 873 | 0.0666 |