Preoperative data of patients with low ejection fraction undergoing coronary artery bypass graft
| Variable | Group; no.* | p value | |
|---|---|---|---|
| Group I† | Group II‡ | ||
| Sex, M:F | 34:22 | 33:32 | 0.66 |
| Age, mean ± SD, yr | 65.3 ± 4.5 | 68.1 ± 4.8 | 0.44 |
| Hypertension | 34 | 31 | 0.73 |
| Smoker | 76 | 70 | 0.57 |
| Diabetes | 24 | 22 | 0.73 |
| Hypercholesterolemia | 50 | 45 | 0.47 |
| Creatinine level > 1.6 mg/dL | 11 | 10 | 0.51 |
| CK-MB mean (range), IU/L | 66.8 (33–277) | 67.1 (44–450) | 0.21 |
| COPD | 25 | 24 | 0.64 |
| CVD | 7 | 6 | 0.88 |
| PVD | 13 | 12 | 0.36 |
| Arrhythmias | 18 | 16 | 0.57 |
| NYHA class, mean ± SD | 3.3 ± 0.45 | 3.2 ± 0.6 | 0.59 |
| Preoperative PTCA | 20 | 15 | 0.64 |
| Preoperative IABP | 21 | 17 | > 0.99 |
| Stable angina | 55 | 56 | 0.82 |
| Unstable angina | 11 | 8 | 0.56 |
| LVEF, mean ± SD | 26.6 ± 3.5 | 27.7 ± 4.7 | 0.33 |
| LVEDD, mean ± SD, mm | 65.6 ± 3.6 | 64 ± 3.2 | 0.62 |
CABG = Coronary artery bypass graft; CK = creatine kinase; COPD = chronic obstructive pulmonary disease; CVD = cerebrovascular disease; F = female; IABP = intra-aortic balloon pump; LVEDD = left ventricle end-diastolic diameter; LVEF = left ventricular ejection fraction; M = male; NYHA = New York Heart Association; PTCA = percutaneous transluminal coronary angioplasty; PVD = peripheral vascular disease; SD = standard deviation.
↵* Unless otherwise indicated.
↵† Conventional CABG.
↵‡ On-pump beating-heart CABG.