Table 2.
Demographics and Perioperative Characteristics of HTx Recipients Stratified by AKI
| AKI (n = 33) | Non-AKI (n = 62) | P value | |
|---|---|---|---|
| Demographic data | |||
| Age, years | 55.12 ± 12.02 | 53.87 ± 11.94 | 0.534 |
| < 60 | 19(57.58) | 36(58.06) | 0.964 |
| ≥ 60 | 14(42.42) | 26(41.94) | |
| Sex, men, n (%) | 31(93.94) | 50(80.65) | 0.083 |
| BMI (kg/m2) | 25.29 ± 4.32 | 24.14 ± 3.51 | 0.164 |
| History of alcohol | 8(24.24) | 21(33.87) | 0.335 |
| History of smoking | 23(69.70) | 40(64.52) | 0.613 |
| Hypertension | 17(51.52) | 22(35.48) | 0.133 |
| Diabetes mellitus | 14(42.42) | 20(32.26) | 0.328 |
| Chronic kidney disease | 10(30.3) | 10(16.13) | 0.109 |
| Pretransplant characteristics | |||
| DCM | 8(24.24) | 30(48.39) | 0.023 |
| CAD | 13(39.39) | 14(22.58) | 0.085 |
| Valve disease | 5(15.15) | 10(16.13) | 0.902 |
| Pre-PCI | 7(21.21) | 4(6.45) | 0.033* |
| ICD implantation | 0(0) | 3(4.84) | 0.202 |
| LVAD implantation | 1(3.03) | 0(0) | 0.347 |
| Cardiac tumor | 0(0) | 1(1.61) | 0.653 |
| EF pre-HTx (%) | 28(25,31) | 27(22,30) | 0.359 |
| Creatinine (mg/dL) | 1.14(1,1.27) | 1.14(0.95,1.27) | 0.617 |
| GFR (ml/min/1.73m2) | 38.58(29.74,45.60) | 38.05(29.68,46.23) | 0.988 |
| < 30 | 9(27.27) | 16(25.81) | 0.0986 |
| 30–59 | 21(63.64) | 40(64.52) | |
| ≥ 60 | 3(9.09) | 6(9.68) | |
| Intraoperative characteristics | |||
| CPB duration (min) | 240(210,270) | 209(180,240) | 0.0149* |
| Blood transfusion (ml) | 1470(1300,2000) | 1440(1000,2100) | 0.630 |
| Infusion (ml) | 2050(1350,2980) | 1800(1300,2220) | 0.108 |
| Blood loss (ml) | 1600(1000,3000) | 1000(1000,2000) | 0.0312* |
| Urine volume (ml) | 1500(850,2000) | 2000(1300,2700) | 0.0006* |
| IABP/ECMO | 5(15.15) | 1(1.61) | 0.0102* |
| Postoperative characteristics | |||
| Urine volume | |||
| 1st Day after operation | 2100(1720,2965) | 2200(2030,2795) | 0.223 |
| 2nd Day after operation | 1850(1260,2335) | 2197.5(1875,2510) | 0.017* |
| 3rd Day after operation | 2015(1260,2155) | 2180(2005,2615) | 0.0003* |
| RRT | 16(48.48) | 0(0) | <.0001* |
| Mechanical ventilation (min) | 1380(840–3780) | 1020(780,2080) | 0.109 |
| Time from operation to discharge (days) | 29(24,51) | 25(22,30) | 0.022* |
| Death | 8(24.24) | 7(11.29) | 0.101 |
| Mortality in hospital | 7(21.21) | 4(6.45) | 0.038* |
| Death within 1 year | 0(0) | 3(4.84) | 0.549 |
| Follow-up days | 510(258,1423) | 658.5(382,1162) | 0.514 |
* P < 0.05; ANOVA was applied to the BMI variable because of its normal distribution. The Kruskal-Wallis test was used to compare other variables