Complications according to modality of endovascular treatment
| Simple Coiling (n = 33) | Balloon-Assisted Coiling (n = 79) | Stent-Assisted Coiling (n = 19) | Fisher Exact Test, P | |
|---|---|---|---|---|
| Hemorrhage | 1 | 7 | 4 | .642 |
| Aneurysm perforation | 1 | 5 | 4 | .048 |
| Arterial perforation | 0 | 2 | 0 | Not applicable |
| Thromboembolism | 1 | 2 | 3 | Not applicable |
| Total complications | 2 (6.1%) | 9 (11.4%) | 7 (36.8%) | .005a |
| One-month morbidity | 0 (0%) | 3 (3.8%) | 1 (5.3%) | Not applicable |
| Ruptured | 0 | 1 | 0 | |
| Unruptured | 0 | 2 | 1 | |
| One-month mortality | 1 (3.0%) | 3 (3.8%) | 0 (0%) | Not applicable |
| Ruptured | 1 | 1 | 0 | |
| Unruptured | 0 | 2 | 0 |
Note:—Numbers in parentheses are n (%) of case procedures.
↵a There were significantly more technical complications among the coiling group (6.1% versus 36.8%, P = .014) and the balloon-assisted group (11.4% versus 36.8%, P = .018) than in the stent-assisted group. There was no significant difference in complication rate between coiling and balloon-assisted groups (6.1% versus 11.4%, P = .605).