Table 2 Intraoperative variables by acute kidney injury status
Variables | No AKI (N = 706) | AKI stage 1 (N = 81) | AKI stage 2–3 (N = 28) | P-value |
|---|---|---|---|---|
Anaesthesia duration (min) | 346 [260–446] | 421 [339–502] | 451 [354–576] | < 0.001 |
Surgery duration (min) | 262 [184–352] | 337 [263–397] | 366 [282–445] | < 0.001 |
Total crystalloid (ml) | 2000 [1300–3000] | 3000 [2000–4000] | 4000 [2000–5900] | < 0.001 |
Total colloid £ (ml) | 500 [500–1000] | 1000 [500–1500] | 1000 [500–2000] | 0.008 |
Total blood product (ml) | 500 [300–800] | 550 [396–1700] | 525 [270–1900] | 0.2 |
Total IN (ml) | 2500 [1800–3500] | 3500 [2500–5400] | 4500 [2300–7300] | < 0.001 |
Estimated blood loss (ml) | 500 [200–1000] | 700 [300–1700] | 1000 [500–1600] | < 0.001 |
Diuresis (ml) | 300 [150–500] | 300 [200–500] | 300 [200–500] | 0.9 |
Gastric suction (ml) | 100 [50–100] | 50 [50–100] | 50 [50–160] | 0.7 |
TOTAL OUT (ml) | 900 [500–1600] | 1100 [700–2100] | 1400 [900–2200] | 0.002 |
Net fluid balance (ml) | 1500 [800–2300] | 2300 [1400–3300] | 3100 [1100–5200] | < 0.001 |
Use of vasopressors, $ N (%) | 554 (78%) | 67 (83%) | 23 (82%) | 0.6 |