Table 2.
Operative data
| Variable | n (%) or mean (SD) |
| Cardiopulmonary bypass time (min) | 94 (18) |
| Aortic cross clamping time (min) | 68 (12) |
| Off-pump CABG | 118 (21.4%) |
| RIMA grafted to OM | 71 (13%) |
| RIMA grafted to PL | 47 (8.5%) |
| Number of distal anastomoses/patient | 3.1 (0.5) |
| Coronary artery endarterectomy | 44 (8%) |
| Sequential anastomoses | 46 (8.3%) |
| With in situ RIMA | 7 (1.3%) |
| Left internal mammary artery | 552 (100%) |
| RIMA | 552 (100%) |
| Grafted to OM | 320 (58%) |
| Grafted to PL | 232 (42%) |
| Both circumflex branches had almost identical perfusion areas | 28 (12%) |
| Retrocaval RIMA routing | 322 (58.4%) |
| Radial artery | 110 (20%) |
| Grafted to right coronary artery | 69 (62.7%) |
| Grafted to one of the marginal branches | 41 (37.3%) |
| Arterial grafts/patient | 2.2 (0.3) |
| Total arterial myocardial revascularisation | 331 (60%) |
| Composite grafts | |
| Right Y graft | 87 (15.7%) |
| Left Y graft | 138 (25%) |
| Right T graft | 18 (3.3%) |
| Inverted T graft | 4 (0.7%) |
| Composite anastomosis (Ω anastomosis) | 19 (3.5%) |
| Associated surgical procedures | |
| Aortic valve replacement | 25 (4.6%) |
| Mitral valve repair | 22 (4%) |
| Mitral valve replacement | 16 (2.9%) |
| Carotid artery endarterectomy | 22 (4%) |
| Cholecystectomy | 5 (0.9%) |
| Postoperative surgical procedures | |
| Revision for deep sternal wound infection | 6 (1.1%) |
| Surgical revision for bleeding | 17 (3%) |
CABG, coronary artery bypass grafting; OM, obtuse marginal artery; PL, posterolateral branch of the circumflex artery; RIMA, right internal mammary artery.