Redo (N=14) | PCI (N=15) | Non-op (N=14) | P value | |
Number of primary bypass grafts, N (%) | ||||
1 | 1 (7.1) | 1 (6.6) | 1 (7.1) | |
2 | 7 (50.0) | 7 (46.7) | 9 (64.4) | |
3 | 6 (42.9) | 7 (46.7) | 4 (28.4) | 0.910 |
Number of failing grafts, N (%) | ||||
1 | 11 (78.6) | 11 (73.4) | 2 (14.2) | |
2 | 2 (14.2) | 4 (26.6) | 0 | |
3 | 1 (7.1) | 0 | 0 | p<0.001 |
Failing graft, N (%)* | ||||
LIMA | 7 (43.8) | 4 (25) | 0 | |
SVG | 6 (37.5) | 11 (68.8) | 2 (14.2) | |
SVG and LIMA | 2 (14.2) (12.5) | 1 (6.2) | 0 | |
RIMA | 1 (6.2) | 0 | 0 | p<0.001 |
Timing of postoperative angiography | ||||
7 hour 21 min | 29 hours 18 min | 15 hours 20 min | p<0.001 | |
Type of graft failure, N (%)* | ||||
Graft occlusion | 5 (27.8) | 0 | 0 | |
Graft thrombosis | 6 (33.3) | 8 (42.1) | 1 (7.1) | |
Anastomosis stenosis (>50%) | 6 (33.3) | 9 (47.4) | 1 (7.1) | |
Dissection | 1 (5.6) | 0 | 0 | |
Spasm | 0 | 0 | 0 | |
Incomplete revascularisation | 0 | 2 (10.5) | 0 | p<0.001 |
Graft failure, N (%) | ||||
Yes | 14 (100) | 15 (100) | 2 (14.2) | p<0.001 |
Affected target coronary arteries, N (%)* | ||||
LAD | 12 (66.7) | 11 (64.7) | 0 | |
Cx/OM | 4 (22.2) | 2 (11.8) | 1 (7.1) | |
RCA/PDA | 2 (11.1) | 4 (23.5) | 1 (7.1) | p<0.001 |
Re-intervention, N (%)* | ||||
One vessel | 11 (78.6) | 11 (73.4) | 0 | |
Ttwo vessels | 2 (14.2) | 4 (26.6) | 0 | |
Tthree vessels | 1 (7.1) | 0 | 0 | |
Hybrid | 1 (7.1) | 0 | 0 | p<0.001 |
Type of intervention, N (%) | ||||
Additional bypass grafting | 13 (92.9) | 0 | N/A | |
Re-anastomosis | 1 (7.1) | 0 | N/A | |
Native vessel PCI | 0 | 14 (93.8) | N/A | |
Bypass graft PCI | 0 | 1 (6.2) | N/A | p<0.001 |
*The percentages in the parentheses always reflect the percentage in the corresponding column.
Cx, circumflex coronary artery; LAD, left anterior descending artery; LIMA, indicates left internal mammary artery; OM, marginal branch of Cx; PCI, percutaneous coronary intervention; PDA, posterior descending artery; RCA, right coronary artery; RIMA, right internal mammary artery; SVG, saphenous vein graft.