Characteristics of the aneurysms with a branch incorporated into the sac and immediate and follow-up results of coiling
| Characteristic | No. |
|---|---|
| No. branch-incorporated aneurysms (patients) | 79 (69) |
| Presentation | |
| Ruptured | 26 (25.7%) |
| Unruptured | 53 (74.3%) |
| Mean of maximum aneurysm diameter (range) | 6.6 mm (2–26) |
| Mean of aneurysm neck (range) | 4.0 mm (1.6–8.4) |
| Wide (≥4 mm or dome-to-neck ratio <1) | 49 (62.0%) |
| Narrow (<4 mm and dome-to-neck ratio ≥1) | 30 (38.0%) |
| Immediate posttreatment control angiography | |
| Near complete | 71 (89.8%) |
| Neck remnant | 4 (5.1%) |
| Incomplete occlusion | 4 (5.1%) |
| Treatment-related complications (% of number of patients) | |
| Aneurysm rupture | 1 (1.4%) |
| Basal ganglia hemorrhage | 1 (1.4%) |
| Thromboembolic events during or after treatment | 7 (10.1%) |
| Occlusion of the incorporated branch artery | 2 (2.9%) |
| Embolic infarct | 1 |
| Transient ischemic attack | 4 |
| Treatment-related permanent morbidity | 4 (5.8%) |
| Treatment-related mortality | 0 |
| Follow-up angiography (mean, 15 months; range, 6–50 months) | 55 (69.6%) |
| Improved or stable | 45 (81.8%) |
| Minor recurrence not requiring retreatment | 4 (7.3%) |
| Major recurrence requiring retreatment | 6 (10.9%) |