2.
Baseline lesion and procedural characteristics of study population.
| Subintimal plaque modification | P-value | ||
| Traditional (n = 32) | Modified (n = 22) | ||
| Values are mean ± SD or n (%). CTO: chronic total occlusion; LAD: left anterior descending branch; LCX: left circumflex branch; RCA: right coronary artery; J-CTO score: Japan-chronic total occlusion score. | |||
| CTO target vessels, % | 0.98 | ||
| LAD | 8 (25.0%) | 5 (22.7%) | |
| LCX | 7 (21.9%) | 5 (22.7%) | |
| RCA | 17 (53.1%) | 12 (54.5%) | |
| J-CTO score, % | 0.80 | ||
| 0 | 0 | 1 (4.5%) | |
| 1 | 5 (15.6%) | 4 (18.2%) | |
| 2 | 9 (28.1%) | 5 (22.7%) | |
| 3 | 11 (34.4%) | 7 (31.8%) | |
| 4 | 4 (12.5%) | 4 (18.2%) | |
| 5 | 3 (9.4%) | 1 (4.5%) | |
| Prior attempt of CTO target lesion, % | 6 (18.8%) | 4 (18.2%) | 0.99 |
| Guidewire in distal true lumen, % | 7 (21.9%) | 6 (27.3%) | 0.75 |
| Lesion length, mm | 47.5 ± 17.3 | 40.4 ± 20.8 | 0.18 |
| Calcification present, % | 23 (71.9%) | 13 (59.1%) | 0.67 |
| CTO proximal reference vessel diameter | 2.77 ± 0.36 | 2.66 ± 0.27 | 0.22 |
| CTO distal reference vessel diameter | 2.05 ± 0.49 | 2.09 ± 0.36 | 0.59 |
| Procedural complications, % | 0.83 | ||
| Death | 0 | 0 | |
| Perforation | 2 (6.2%) | 1 (4.5%) | |
| Stroke | 0 | 0 | |
| Stent thrombosis | 0 | 0 | |
| Emergent surgery | 0 | 0 | |
| Bleeding at access | 4 (12.5%) | 4 (18.2%) | |
| None | 26 (81.2%) | 17 (77.3%) | |