Predictors of branch occlusion following coverage
| Parameter | Branch Occlusion (No.) (%) | P Value | |
|---|---|---|---|
| Not Occluded (n = 203) | Occluded (n = 25) | ||
| Sex | |||
| Female | 108 (87.1%) | 16 (12.9%) | .3 |
| Male | 95 (91.3%) | 9 (8.7%) | |
| Median age (range) (yr) | 59.5 (29–82) | 61 (42–78) | .56 |
| Smokinga | |||
| Yes | 53 (82.8%) | 11 (17.2%) | .1 |
| No | 137 (90.7%) | 14 (9.3%) | |
| Presenting symptoms | |||
| Asymptomatic | 32 (72.7%) | 12 (27.3%) | <.001 |
| Headache/dizziness | 38 (88.4%) | 5 (11.5%) | |
| Neurologic deficit | 133 (94.3%) | 8 (5.7%) | |
| Subarachnoid hemorrhage | |||
| No | 141 (87.6%) | 20 (12.4%) | .36 |
| Acute (<24 hr) | 25 (96.2%) | 1 (3.8%) | |
| Immediate (<2 wk) | 11 (100%) | 0% | |
| Remote (>2 wk) | 26 (86.7%) | 4 (13.3%) | |
| Pretreatment mRS | |||
| 0–2 | 160 (87.4%) | 23 (12.6%) | .12 |
| 3–5 | 43 (95.6%) | 2 (4.4%) | |
| Aneurysm shape | |||
| Saccular | 74 (84.1%) | 14 (15.9%) | .18 |
| Fusiform | 89 (91.8%) | 8 (8.2%) | |
| Dissecting | 38 (92.7%) | 3 (7.3%) | |
| Aneurysm measurements | |||
| Maximal diameter | |||
| <7 mm | 32 (84.2%) | 6 (15.8%) | .23 |
| 7–12 mm | 50 (84.7%) | 9 (15.3%) | |
| 13–24 mm | 52 (89.7%) | 6 (10.3%) | |
| >24 mm | 69 (94.5%) | 4 (5.5%) | |
| Daughter sac | |||
| Yes | 45 (90%) | 5 (10%) | .8 |
| No | 158 (88.8%) | 20 (11.2%) | |
| Intra-aneurysmal thrombus | |||
| Yes | 68 (94.4%) | 4 (5.6%) | .08 |
| No | 135 (86.5%) | 21 (13.5%) | |
| Prior treatment | |||
| No | 174 (88.3%) | 23 (11.7%) | .8 |
| Endovascular | 25 (92.6%) | 2 (7.4%) | |
| Surgery | 3 (100%) | 0% | |
| Both | 1 (100%) | 0% | |
| Platelet function testing | |||
| Yes | 128 (85.3%) | 22 (14.7%) | .01 |
| No | 75 (96.2%) | 3 (3.8%) | |
| Clopidogrel respondersb | |||
| Yes | 110 (86.6%) | 17 (13.4%) | .3 |
| No | 18 (78.3%) | 5 (21.7%) | |
| Adjunctive coiling | |||
| Yes | 75 (88.2%) | 10 (11.8%) | .77 |
| No | 128 (89.5%) | 15 (10.5%) | |
| No. of Pipelines deployed (median) (range) | 1 (1–14) | 1 (1–4) | .33 |
| Length of procedure (median) (range) (min) | 110 (22–410) | 114 (32–271) | .8 |
| Branch | |||
| VA | 15 (65.2%) | 8 (34.8%) | .001 |
| PICA | 45 (91.8%) | 4 (8.2%) | |
| AICA | 72 (92.3%) | 6 (7.7%) | |
| SCA | 58 (95.1%) | 3 (4.9%) | |
| PCA | 13 (76.5%) | 4 (23.5%) | |
| No. of covered branches in same procedure | |||
| 1 | 37 (97.4%) | 1 (2.6%) | .07 |
| ≥2 | 166 (87.4%) | 24 (12.6%) | |