Table 2.
Postoperative variables and outcomesa
| Variables and outcomes | Total cohort (N = 1,314) |
Inotrope-unexposed (n = 783) | Inotrope-exposed (n = 531) |
|---|---|---|---|
| Postoperative inotrope and vasopressor use, n (%) | |||
| Norepinephrine | 674 (51.3) | 279 (35.6) | 395 (74.4) |
| Vasopressin | 73 (5.6) | 5 (0.6) | 68 (12.8) |
| Epinephrine | 308 (23.29) | 0 | 308 (58.0) |
| Dobutamine | 75 (5.7) | 0 | 75 (14.1) |
| Milrinone | 332 (25.3) | 0 | 332 (62.5) |
| Six-hour postoperative physiological variables | |||
| Mean arterial pressure, mmHg (± SD) | 75.9 (10.0) | 76.7 (10.0) | 74.5 (9.7) |
| Mean oxygen delivery, mL/minute/m2 (± SD) |
353 (101) | 363 (100) | 341 (98) |
| Mean cardiac index, L/min (± SD) | 2.9 (0.7) | 2.9 (0.7) | 2.8 (0.7) |
| Mixed venous oxygen saturation, n (%) | 70.7 (9.0) | 71.3 (8.2) | 70.1 (9.3) |
| Mean serum lactate, μmol/L (± SD) | 3.2 (2.7) | 2.1 (1.6) | 4.1 (3.0) |
| Outcomes | |||
| Died, n (%) | 103 (7.8) | 15 (1.9) | 76 (14.3) |
| Renal dysfunction, n (%) | 105 (8.3) | 25(3.2) | 87 (16.8) |
| Median ICU length of stay, days (IQR) | 1.1(1.8) | 1.0 (0.9,1.6) | 2.1 (1.0,4.7) |
| Median hospital length of stay, days (IQR) | 8 (6) | 7.0 (5.0,9.0) | 10.0 (6.0,18.0) |
aIQR, interquartile range; SD, standard deviation.