Angiographic and procedural characteristics and outcomes at the time of CABG
| Variable | XRT group (n=38) | Control group (n=141) | P value |
| Number of diseased vessels (mean±SD) | 3.8±0.5 | 3.7±0.5 | 0.76 |
| Number of vessels bypassed (mean±SD) | 2.9±1.0 | 3.0±0.9 | 0.99 |
| Number of IMA grafts used, n (%) | 34 (89) | 137 (98) | 0.13 |
| Pedicled harvest* | 26 (74) | 100 (78) | 0.74 |
| Length of stay, days, (mean±SD) | 7.3±4.6 | 6.9±3.3 | 0.71 |
| Postoperative complications, n (%) | |||
| Bleeding | 2 (5) | 5 (3) | 0.59 |
| Infection (any) | 5 (13) | 12 (9) | 0.41 |
| Superficial infection of the venous harvest site | 0 | 3 (2) | |
| Urinary tract infection | 4 (10) | 9 (6) | |
| Bacteraemia | 1 (3) | 0 | |
| Sternal infection | 0 | 0 | |
| Sternal dehiscence | 0 | 0 | NA |
| Neurological complication | 0 | 6 (5) | 0.08 |
| Permanent stroke | 0 | 2 (1) | 0.34 |
| Pulmonary embolism | 1 (3) | 1 (1) | 0.34 |
| Myocardial infarction | 0 | 0 | NA |
| Atrial fibrillation | 11 (29) | 45 (32) | 0.60 |
| Renal failure | 1 (3) | 2 (1) | 0.90 |
| Inhospital death | 0 | 1 (1) | 0.50 |
*Harvest method was unavailable in three subjects in the XRT group and 12 in the controls.
CABG, coronary artery bypass graft surgery; IMA, internal mammary artery; XRT, radiation therapy.