Clinical Study
Does Off-Pump Coronary Artery Bypass Grafting Negatively Impact Long-Term Survival and Freedom from Reintervention?
Table 1
Unmatched preoperative patient characteristics.
| | Variable | Off-pump
() | On-pump
() | value |
| | Age (years ± SD) | | | 0.91 | | Male | 219 (71.3) | 216 (54.4) | 0.02 | | BMI | | | 0.87 | | Diabetes | 108 (35.2) | 106 (26.7) | 0.03 | | Hypertension | 163 (53.1) | 212 (53.4) | 0.97 | | Never smoked | 99 (32.2) | 137 (34.5) | 0.76 | | Hypercholesterolemia | 139 (45.3) | 157 (39.5) | 0.04 | | COPD | 25 (8.1) | 33 (8.3) | 0.91 | | CCS ≥ 3 | 79 (25.7) | 101 (25.4) | 0.97 | | NYHA ≥ 2 | 166 (54.1) | 219 (55.2) | 0.87 | | PVD | 27 (8.8) | 21 (5.3) | 0.03 | | MI in 30 days prior to CABG | 79 (25.7) | 101 (25.4) | 0.99 | | Preoperative serum creatinine ≥ 200 mol·L−1 | 13 (4.2) | 7 (1.8) | 0.04 | | <30% ejection fraction | 16 (5.2) | 22 (5.5) | 0.93 | | 30–49% ejection fraction | 69 (22.5) | 98 (24.7) | 0.87 | | ≥50% ejection fraction | 222 (72.3) | 277 (69.8) | 0.76 | | Preoperative IV nitrates | 20 (6.5) | 31 (7.8) | 0.65 | | Preoperative IV inotropes | 1 (0.3) | 2 (0.5) | 0.79 | | Preoperative IABP | 19 (6.2) | 24 (6.0) | 0.97 | | Previous PCI | 13 (4.2) | 17 (4.2) | 1.0 | | CVA/TIA | 5/4 (2.9) | 3/9 (3.0) | 0.91 | | LMS stenosis > 50% | 119 (38.8) | 159 (40.0) | 0.6 | | Two vessels | 112 (36.5) | 110 (27.7) | 0.04 | | Three vessels | 195 (63.5) | 287 (72.3) | 0.06 | | Urgent | 101 (32.9) | 161 (40.6) | 0.03 | | Logistic EuroSCORE (mean ± SD) | | | 0.76 |
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Values in parentheses are percentages.
BMI: body mass index; CABG: coronary artery bypass grafting; CCS: Canadian Cardiovascular Society; COPD: chronic obstructive pulmonary disease; CVA: cerebrovascular accident; IABP: intra-aortic balloon pump; LMS: left main stem; MI: myocardial infarction; NHYA: New York Heart Association; PCI: percutaneous coronary intervention; PVD: peripheral vascular disease; SD: standard deviation; TIA: transient ischemic attack.
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