Table 3.
Procedural characteristics
| Procedural characteristics | Overall (n = 64) | Success (n = 41) | Failure (n = 23) | P value |
| Planned initial attempt | 45 (70.3%) | 29 (70.7%) | 16 (69.6%) | 1 |
| Retrograde approach | 9 (14.1%) | 6 (14.6%) | 3 (13.0%) | 1 |
| Contralateral injection | 36 (56.3%) | 22 (53.6%) | 14 (60.9%) | 0.76 |
| Parallell wire | 16 (25%) | 10 (24.3%) | 6 (26.1%) | 1 |
| Intravascular ultrasound | 8 (12.5%) | 8 (19.5%) | 0 (0%) | 0.042 |
| Rotablator | 5 (7.8%) | 5 (12.2%) | 0 (0%) | 0.15 |
| Change of operator | 39 (60.9%) | 27 (65.9%) | 12 (52.2%) | 0.41 |
| Experienced operator | 36 (56.3%) | 27 (65.9%) | 9 (39.1%) | 0.065 |
| Change in guide catheter | 11 (17.2%) | 7 (17.1%) | 4 (17.4%) | 1 |
| Change of wire | 38 (59.4%) | 23 (56.1%) | 15 (65.2%) | 0.65 |
| Microcatheter use | 46 (71.9%) | 28 (68.3%) | 18 (78.3%) | 0.57 |
| Procedure time | 127.8 ± 44.3 | 129.1 ± 51.3 | 125.3 ± 32.8 | 0.71 |
| Fluroscopy time | 45.44 ± 21 | 43.3 ± 21.5 | 49.2 ± 20.0 | 0.27 |
| Contrast (mL) | 337.5 ± 127.5 | 355.5 ± 127.2 | 305.4 ± 124.3 | 0.13 |