Table 2:
Baseline characteristics of matched pairs
| ST (n=382) |
MI (n=382) |
p-value | |
|---|---|---|---|
|
| |||
| Age | 60.7 ± 0.81 | 59.1 ± 0.71 | 0.140 |
| BMI | 25.9 ± 0.27 | 25.5 ± 0.22’ | 0.264 |
| Cerebrovascular accident | 27 (7.1%) | 21 (5.5%) | 0.371 |
| COPD | 28 (7.3%) | 22 (5.8%) | 0.380 |
| Creatinine | 1.05 ± 0.03 | 0.99 ± 0.03 | 0.092 |
| Current congestive heart failure | 88 (23.0%) | 79 (20.7%) | 0.431 |
| Current smoker | 15 (3.93%) | 13 (3.40%) | 0.848 |
| Diabetes | 25 (6.5%) | 26 (6.8%) | 0.885 |
| Ejection fraction % | 49.8 ± 0.62 | 51.3 ± 0.50 | 0.070 |
| Gender (male) | 177 (46.3%) | 184 (48.2%) | 0.612 |
| Hepatic failure | 1 (0.26%) | 1 (0.26%) | 1.0 |
| History of endocarditis | 5 (1.31%) | 10 (2.62%) | 0.297 |
| History of ventricular arrhythmias | 4 (1.05%) | 3 (0.79%) | 1.0 |
| Immune system deficiency | 14 (3.7%) | 12 (3.1%) | 0.690 |
| Intra-aortic balloon pump | 5 (1.31%) | 0 | 0.062 |
| Peripheral vascular disease | 2 (0.52%) | 3 (0.79%) | 1.0 |
| Previous myocardial infarction | 2 (0.52%) | 2 (0.52%) | 1.0 |
| Previous surgery | 31 (8.1%) | 28 (7.3%) | 0.684 |
| Renal failure or dialysis | 8 (2.1%) | 2 (0.52%) | 0.107 |
| Vasodilatory shock (pre-operative) | 6 (1.57%) | 1 (0.26%) | 0.123 |
MI: minimally invasive; ST: sternotomy