Table 2.
Operative variables in patients with and without a cardiovascular intensive care unit readmission
| Operative variable | No readmission (n = 10320) | Readmission (n = 479) | P value |
|---|---|---|---|
| Surgical priority, % | 0.009 | ||
| Emergent | 3.6 | 5.0 | |
| Urgent in-hospital | 40.0 | 46.3 | |
| Urgent out of hospital | 47.8 | 43.4 | |
| Nonurgent out of hospital | 8.6 | 5.2 | |
| Surgical incidence, % | 0.01 | ||
| First operation | 91.4 | 86.8 | |
| Second operation | 7.0 | 11.3 | |
| Third or greater | 1.6 | 1.9 | |
| Surgery, % | <0.001 | ||
| Isolated CABG | 49.2 | 32.6 | |
| CABG and single valve | 7.7 | 12.1 | |
| Isolated aortic valve repair or replacement | 6.3 | 5.8 | |
| Isolated mitral valve repair or replacement | 2.4 | 1.9 | |
| Multivalve repair or replacement | 1.5 | 3.3 | |
| Intraoperative variables | |||
| Cardiopulmonary bypass time, mean (SD) min | 127.1 (67.2) | 149.0 (56.2) | <0.001 |
| Aortic cross-clamp time, mean (SD), min | 88.8 (55.8) | 103.4 (48.8) | <0.001 |
| Intraoperative RBC transfusion, % | 25.7 | 50.3 | <0.001 |
| Intraoperative FFP transfusion, % | 12.3 | 27.1 | <0.001 |
CABG: coronary artery bypass graft; FFP: fresh frozen plasma; RBC: red blood cell; SD: standard deviation.