Table 2.
Baseline laboratory and hemodynamic variables in the AKI and non-AKI groups
| Variable | AKI (n = 44) | Non-AKI (n = 204) | P-value |
|---|---|---|---|
| Hemoglobin (g/dL)a | 11.1 ± 1.5 | 12.1 ± 1.4 | < 0.001* |
| Sodium (mg/dL)a | 136.6 ± 4.0 | 137.4 ± 9.7 | 0.558 |
| Potassium (mg/dL)a | 4.0 ± 0.5 | 4.1 ± 0.4 | 0.521 |
| BUN (mg/dL)a | 26.4 ± 18.5 | 18.5 ± 8.7 | < 0.001* |
| Preoperative serum Cr (mg/dL)a | 1.4 ± 1.0 | 1.0 ± 1.0 | 0.034* |
| Postoperative serum Cr (mg/dL)a | 2.4 ± 1.0 | 1.0 ± 0.8 | < 0.001* |
| eGFR (mL/min per 1.73 m2)a | 60.7 ± 32.3 | 77.0 ± 26.1 | < 0.001* |
| Proteinuria (n, %) | 14 (31.8) | 33 (16.2) | 0.029* |
| ESR (mm/h)a | 30.0 ± 20.4 | 18.9 ± 15.2 | < 0.001* |
| CRP (mg/dL)a | 39.3 ± 49.5 | 23.2 ± 34.9 | 0.012* |
| Time of operation (min)a | 55.0 ± 15.4 | 60.2 ± 20.1 | 0.104 |
| Intraoperative blood loss (mL)a | 523.1 ± 226.9 | 485.3 ± 153.4 | 0.472 |
| ASA scores | 0.203 | ||
| II | 109 (53.4%) | 17 (38.6%) | |
| III | 91 (44.6%) | 26 (59.1%) | |
| IV | 4 (2.0%) | 1 (2.3%) | |
| Intraoperative hypotension (n, %) | 26 (59.1) | 91 (44.6) | 0.042* |
| Postoperative blood loss (mL) | 260.5 ± 270.5 | 246.9 ± 184.6 | 0.707 |
ASA American Society of Anesthesiologists, BUN blood urea nitrogen, Cr creatinine, CRP C-reactive protein, eGFR estimated glomerular filtration rate, ESR erythrocyte sedimentation rate
aValues are presented as mean ± standard deviation
*Statistically significant between the 2 groups (P < 0.05)