Table 2.
Characteristics of patients admitted to the cardiac intensive care unit following cardiac surgery
| Characteristic | All (n = 2267) | AKI-1UO (n = 370) | AKI-1 sCr (n = 192) | AKI-1 Both (n = 210) | AKI-2 UO (n = 97) | AKI-2 sCr (n = 92) | AKI-2 Both (n = 33) |
|---|---|---|---|---|---|---|---|
| Age, mean (sd), years | 65.9 (11.6) | 67.3 (10.5) | 67.6 (12.7) | 68.5 (11.8) | 67.7 (10.9) | 66.7(12.3) | 64.4 (12.3) |
| Female gender, % | 27.2 | 30.8 | 28.1 | 26.7 | 34.0 | 27.2 | 24.2 |
| Weight, mean (sd), Kg | 81.5 (15.8) | 89.4 (16.6) | 75.3 (14.0) | 87.2 (17.7) | 96.5 (17.3) | 80.1 (16.3) | 89.1 (18.0) |
| Logistic EuroSCORE, median (Interquartile range) | 4.0 (2.1–7.7) | 4.4 (2.5–7.7) | 7.7 (3.5–18.1) | 6.3 (2.8–13.0) | 4.3 (2.5–7.6) | 9.7 (4.2–18.4) | 5.6 (2.3–15.6) |
| Operation, n (%) | |||||||
| CABG | 1211 (53.4) | 177 (47.8) | 56 (29.2) | 92 (43.8) | 49 (50.5) | 28 (30.4) | 10 (30.3) |
| Valve | 477 (21.0) | 93 (25.1) | 50 (26.0) | 39 (18.6) | 26 (26.8) | 23 (25.0) | 8 (24.2) |
| CABG and Valve | 301 (13.3) | 60 (16.2) | 41 (21.4) | 39 (18.6) | 13 (13.4) | 12 (13.0) | 5 (15.2) |
| Aortic | 122 (5.4) | 19 (5.1) | 16 (8.3) | 16 (7.6) | 4 (4.3) | 11 (12.0) | 3 (9.1) |
| Cardiac Transplantation | 53 (2.3) | 5 (1.4) | 19 (9.9) | 10 (4.8) | 1 (1.0) | 8 (8.7) | 4 (12.1) |
| MCS | 39 (1.7) | 6 (1.6) | 8 (4.2) | 6 (2.9) | 2 (2.1) | 4 (4.3) | 2 (6.1) |
| Other – minor | 20 (0.9) | 3 (0.8) | 1 (0.5) | 5 (2.4) | 0 (0.0) | 3 (3.3) | 1 (3.0) |
| Other – major | 44 (1.9) | 7 (1.9) | 1 (0.5) | 3 (1.4) | 2 (2.1) | 3 (3.3) | 0 (0) |
| Urgency, n (%) | |||||||
| Elective | 1321(58.3) | 217 (58.6) | 99 (51.6) | 110 (52.4) | 56 (57.7) | 42 (45.7) | 14 (42.4) |
| Urgent | 890 (39.3) | 145 (39.2) | 83 (43.2) | 89 (42.4) | 38 (39.2) | 43 (46.7) | 17 (51.5) |
| Emergency | 40 (1.8) | 7 (1.9) | 8 (4.2) | 7 (3.3) | 3 (3.1) | 5 (5.4) | 1 (3.1) |
| Salvage | 16 (0.7) | 1 (0.3) | 2 1.0) | 4 (1.9) | 0 (0.0) | 2 (2.2) | 1 (3.1) |
| CPB time, median (Interquartile range), minutes | 101.0 (80.0–130.0) | 100.0 (81.0–133.2) | 129.0 (97.0–182.0) | 107.5 (83.3–132.8) | 99.0 (75.5–120.0) | 112.0 (90.0–155.0) | 123.0 (81.0–157.0) |
UO urine output, sCr serum creatinine, CABG coronary artery bypass graft, MCS mechanical circulatory support, CPB cardiopulmonary bypass