Table 1.
Clinical Characteristics of the Cohort Overall
| Variable | N=2,876 |
|---|---|
| Demographics | |
| Age, years(SD) | 68(±11) |
| Male gender, n(%) | 1,624(56.5%) |
| Caucasian race, n(%) | 2,504(87.1%) |
| Body mass index,(SD) | 27.8(±5.3) |
| Co-morbidities | |
| Hypertension, n(%) | 1,887(65.6%) |
| Insulin dependent diabetes, n(%) | 252(8.8%) |
| Smoking history, n(%) | 722(25.1%) |
| Chronic lung disease, n(%) | 499(17.4%) |
| Serum creatinine, mg/ml(SD) | 1.5(±0.9) |
| Dialysis, n(%) | 77(2.7%) |
| Cerebrovascular accident, n(%) | 269(9.4%) |
| Previous cardiac surgery, n(%) | 347(12.1%) |
| Prior percutaneous intervention, n(%) | 950(33.0%) |
| Acuity | |
| Preoperative IABP, n(%) | 1,869(65.0%) |
| Cardiogenic shock, n(%) | 1,487(51.7%) |
| Unstable angina, n(%) | 1,391(48.4%) |
| Triple vessel CAD, n(%) | 966(33.6%) |
| Ejection fraction, %(SD) | 43.1(14.1) |
| Operative Characteristics | |
| Emergent/salvage, n(%) | 1,430(49.7%) |
| Median CPB time, minutes(SD) | 163(125–213) |
| Median aortic cross clamp time, minutes(SD) | 109(80–147) |
| Intraoperative IABP, n(%) | 230(8.0%) |
| Concomitant CABG, n(%) | 1,837(63.9%) |
| Concomitant mitral valve procedure, n(%) | 211(7.3%) |
| Intraoperative VAD placement, n(%) | 84(2.9%) |
| Postoperative Outcomes | |
| Median length of stay, days(IQR) | 8(4–17) |
| CVA, n(%) | 104(3.6%) |
| Renal replacement therapy, n(%) | 343(11.9%) |
| Pneumonia, n(%) | 371(12.9%) |
| Heart block, n(%) | 114(4.0%) |
| Re-exploration for bleeding, n(%) | 224(7.8%) |