Baseline characteristics
| Characteristics | |
|---|---|
| No. of aneurysms | 579 |
| No. of patients | 531 |
| No. of procedures | 534 |
| Patient demographics | |
| Male (No.) | 147 (27.7%) |
| Female (No.) | 384 (72.3%) |
| Age at time of treatment (median) (range) (yr) | 54 (13–86) |
| Presentation of patients (No.) | |
| Incidental | 249 (46.9%) |
| Headaches | 98 (18.4%) |
| Cranial nerve palsy | 37 (7%) |
| Recanalization of previously treated aneurysm | 58 (10.9%) |
| Subarachnoid hemorrhage | 65 (12.2%) |
| Acute (≤3 days) | 41 (7.7%) |
| Stroke | 20 (3.8%) |
| Other | 4 (0.8%) |
| Patients with multiple aneurysms (No.) | 141 (26.6%) |
| Aneurysms per patient (median) (range) | 1 (1–5) |
| Patients with a single aneurysm | 390 (73.5%) |
| Patients with 2 aneurysms | 101 (19%) |
| Patients with 3 aneurysms | 30 (5.7%) |
| Patients with 4 aneurysms | 8 (1.5%) |
| Patients with 5 aneurysms | 2 (0.3%) |
| Pretreatment mRS (per patient) (No.) | |
| 0–2 | 525 (98.8%) |
| 3–5 | 6 (1.2%) |
| Aneurysm characteristics (No.) | |
| Left | 272 (47.0%) |
| Right | 257 (44.4%) |
| Midline | 50 (8.6%) |
| Anterior circulation (No.) | |
| Internal carotid artery | |
| Posterior communicating | 50 (8.6%) |
| Paraophthalmic | 270 (46.6%) |
| Cavernous | 45 (7.8%) |
| Other | 67 (11.5%) |
| Middle cerebral artery | 37 (6.4%) |
| Anterior cerebral artery | 16 (2.7%) |
| Anterior communicating artery | 4 (0.9%) |
| Pericallosal artery | 13 (2.2%) |
| Posterior circulation (No.) | 36 (6.2%) |
| Basilar artery | 30 (5.2%) |
| Posterior cerebral artery | 9 (1.6%) |
| Superior cerebellar artery | 2 (0.3%) |
| Aneurysm morphology (No.) | |
| Saccular | |
| Sidewall | 459 (79.2%) |
| Bifurcation | 63 (10.9%) |
| Fusiform/dissecting/blister | |
| Fusiform | 27 (4.7%) |
| Dissecting | 20 (3.5%) |
| Blister | 10 (1.7%) |
| Maximal diameter (median) (range) (mm) | 7.6 (1–36.6) |
| Neck diameter (median) (range) (mm) | 4.5 (1–30) |