TABLE 2.
Procedural Characteristics of the Cardiac Surgical Cohort
| Characteristics | Cardiac Surgicala (n = 3,517) |
|---|---|
| Society of Thoracic Surgeons morbidity risk category | |
| 1 to 3 | 1,419 (40.3) |
| 4 or 5 | 2,005 (57.0) |
|
| |
| Time from surgery to extracorporeal membrane oxygenation cannulation, hr | 13 (7–23) |
| ≤7 (< 25th percentile) | 1,041 (29.6) |
| 7–13 (25th to 50th percentile) | 722 (20.5) |
| 13–23 (50th to 75th percentile) | 885 (25.2) |
| > 23 (> 75th percentile) | 869 (24.7) |
|
| |
| Aortic surgery | 1,901 (54.1) |
|
| |
| Cardiopulmonary bypass time time, min | 193 (132–282) |
| < 193 (< 50th percentile) | 1,587 (45.1) |
| 193–282 (50th to 75th percentile) | 796 (22.6) |
| ≥ 282 (> 75th percentile) | 798 (22.7) |
| Unknown | 336 (9.6) |
a
After exclusion of patients on extracorporeal cardiopulmonary resuscitation and pulmonary extracorporeal membrane oxygenation.
Data are presented as n (%) for categorical variables and median (interquartile range) for continuous variables.