Table 1. Basal characteristics of patients by acute kidney injury (AKI) status.
| Overall (n = 158) | No-AKI (n = 104) | AKI (n = 54) | p | |
|---|---|---|---|---|
| Age, years | 51.2±9.7 | 52.3±10.4 | 48.9±8.1 | 0.040 |
| Male gender, % | 74.7 | 77.9 | 68.5 | 0.199 |
| Diabetes, % | 40.5 | 43.3 | 35.2 | 0.326 |
| Hypertension, % | 79.1 | 76.0 | 85.2 | 0.176 |
| Body Mass Index, kg/m2 | 27.4±4.3 | 27.2±4.3 | 27.8±4.4 | 0.472 |
| Intervention type, % | 0.014 | |||
| Isolated CABG | 50.6 | 57.7 | 37.1 | |
| Others (including valve surgery, combined and aortic surgery) | 49.4 | 42.3 | 63.0 | |
| Atrial fibrillation, % | 18.4 | 17.3 | 20.4 | 0.637 |
| EURO Score | 7.2 | 7.1 | 7.3 | 0.747 |
| Blood Pressure, mmHg | 127±18/71±11 | 126±19/71±11 | 129±21/71±13 | 0.378/0.940 |
| eGFR, mL/min/1.73 m2 | 72.3±23.0 | 76.8±21.4 | 63.5±23.5 | <0.001 |
| Hemoglobin, g/dL | 12.7±1.9 | 12.8±1.9 | 12.4±1.9 | 0.252 |
| Urea, mg/dL | 45 [37–61] | 43 [36–57] | 49 [40–68] | 0.015 |
| Glycemia, mg/dL | 121±48 | 126±52 | 112±37 | 0.083 |
| Myoglobin, μg/L | 36 [24–53] | 35 [23–52] | 38 [27–61] | 0.239 |
| Troponin, mg/L | 0.02 [0.01–0.06] | 0.02 [0.01–0.10] | 0.02 [0.01–0.04] | 0.260 |
| Creatine phosphokinase, IU/L | 51 [35–78] | 52 [36–78] | 49 [34–78] | 0.508 |
| Lactate dehydrogenase, U/L | 351 [300–410] | 353 [301–415] | 348 [299–405] | 0.630 |
| Pro-BNP, pg/mL | 508 [239–1848] | 461 [239–757] | 1271 [271–2812] | 0.154 |
| PTT, seconds | 35 [31–46] | 37 [32–47] | 34 [30–41] | 0.062 |
| Pulmonary artery pressure, mmHg | 40±13 | 38±11 | 42±16 | 0.218 |
| Blood pH, pH scale | 7.36±0.07 | 7.36±0.06 | 7.34±0.08 | 0.079 |
| Sodium, mEq/L | 133±6 | 134±6 | 131±6 | 0.061 |
| Time of ECC, min | 121±46 | 115±44 | 132±48 | 0.036 |
| Time of Clamp, min | 78±34 | 74±33 | 86±36 | 0.053 |
| Length of stay, days | 18 [14–23] | 17 [14–21] | 20 [16–34] | 0.001 |
| Diuretics | 22.8 | 19.2 | 29.6 | 0.139 |
| RAASi, % pts | 32.3 | 31.7 | 33.3 | 0.838 |
| Statins, % pts | 21.5 | 19.2 | 25.9 | 0.331 |