Table 1.
Baseline characteristics for all patients and by AKI status
| All (n = 20) | AKI (n = 12) | No-AKI (n = 8) | p value | |
|---|---|---|---|---|
| Male, n (%) | 16 (80.00) | 10 (83.33) | 6 (75.00) | 0.648 |
| Age, mean ± SD, years | 58.05±14.18 | 66.33±6.01 | 45.63±14 | <0.001 |
| Comorbidities | ||||
| Hypertension, n (%) | 6 (30.00) | 6 (50.00) | 0 (0.00) | 0.017 |
| Diabetes mellitus, n (%) | 3 (15.00) | 3 (25.00) | 0 (0.00) | 0.125 |
| Cerebral infarction, n (%) | 3 (15.00) | 3 (25.00) | 0 (0.00) | 0.125 |
| Chronic renal insufficiency, n (%) | 1 (5.00) | 1 (8.33) | 0 (0.00) | 0.402 |
| Preoperative SCr, μmol/L | 98.30 (23.10) | 103.42 (25.95) | 90.623 (16.68) | 0.235 |
| Preoperative serum BUN, mg/dL | 6.99 (2.66) | 7.74 (3.11) | 5.85 (1.24) | 0.122 |
| Preoperative eGFR, mL/min per 1.73 m2 | 73.75 (18.48) | 66.33 (15.66) | 84.875 (17.48) | 0.023 |
| Preoperative serum UA, μmol/L | 410.25 (127.21) | 428.25 (160.23) | 383.25 (46.76) | 0.453 |
| Procedures | ||||
| Mitral valve replacement, n (%) | 5 (25.00) | 3 (25.00) | 2 (25.00) | >0.99 |
| Aortic valve replacement, n (%) | 4 (20.00) | 4 (33.33) | 0 (0.00) | 0.068 |
| Coronary artery bypass graft, n (%) | 2 (10.00) | 2 (16.67) | 0 (0.00) | 0.224 |
| Valvuloplasty, n (%) | 12 (60.00) | 7 (58.33) | 5 (62.50) | 0.852 |
| Cardiopulmonary bypass, n (%) | 18 (90.00) | 10 (83.33) | 8 (100.00) | 0.224 |
| LVEF, mean ± SD, % | 60.7±10.29 | 57.08±11.75 | 66.13±3.80 | 0.051 |
| CPB, mean ± SD, min | 88.67±43.69 | 108.40±49.71 | 64.00±5.08 | 0.027 |
| EuroSCORE, mean ± SD | 4.45±2.72 | 5.91±2.61 | 2.25±0.46 | 0.001 |
Qualitative variables are shown as n (%).
AKI, acute kidney injury; eGFR, estimated glomerular filtration rate; BUN, blood urea nitrogen; LVEF, left ventricular ejection fraction; CPB, cardiopulmonary bypass time; SD, standard deviation.