Table 1.
Pre- and peri-operative characteristics of patients undergoing partial nephrectomy, radical nephrectomy, or thoracic surgery. Summary statistics are median (interquartile range) or frequency (%).
| Partial Nephrectomy (n=88) | Radical Nephrectomy (n=32) | Thoracic Surgery (n=42) | |
|---|---|---|---|
| Age at surgery (years) | 60 (51, 68) | 60 (56, 71) | 66 (58, 70) |
| Female | 33 (38%) | 10 (31%) | 23 (55%) |
| Diabetes | 12 (14%) | 4 (13%) | 2 (5%) |
| Cardiovascular Disease | 57 (65%) | 23 (72%) | 28 (67%) |
| Preoperative uNGAL | 5.8 (3.5, 9.7) | 10.5 (6.9, 21.8) | 3.3 (2.2, 8.6) |
| Preoperative Normalized uNGAL* | 5.3 (2.3, 10.4) | 10.0 (5.0, 15.2) | 2.6 (2.0, 7.0) |
| Preoperative uCreatinine* | 127.9 (69.6, 175.3) | 160.5 (95.9, 213.3) | 120.7 (79.3, 141.4) |
| Preoperative eGFR | 78.0 (64.0, 95.5) | 61.0 (52.5, 77.0) | 84.5 (59.4, 95.0) |
| Estimated Blood Loss (5 missing data) | 200 (100, 400) | 200 (105, 825) | 50 (25, 150) |
| Acute Kidney Injury (AKIN) | 15 (17%) | 15 (47%) | 6 (14%) |
| Cold Ischemia | 66 (76%) | - | - |
| Cold Ischemia Duration | 29 (22, 38) | - | - |
| Warm Ischemia | 15 (17%) | - | - |
| Warm Ischemia Duration | 18 (11, 28) | - | - |
| No Ischemia | 6 (7%) | ||
| Mannitol | 80 (91%) | - | - |
| Stage | |||
| T1a | 60 (68%) | - | - |
| T1b | 23 (26%) | - | - |
| T2a | 5 (6%) | - | - |
Abbreviations: uNGAL = urinary neutrophil gelatinase-associated lipocalin, uCreatinine = urinary creatinine, eGFR = glomerular filtration rate, AKIN = Acute Kidney Injury Network
*
uCreatinine data were not available for 83 patients (51%)