Table 1:
Baseline characteristics
| Parameter | No. |
|---|---|
| No. of procedures | 329 |
| No. of aneurysms | 380 |
| Sex | |
| Female | 272 (82.7%) |
| Male | 57 (17.3%) |
| Median age (range) (yr) | 58 (18–82) |
| Smoking | 85 (25.8%) |
| Multiple aneurysms | 148 (45%) |
| Pretreatment mRS | |
| 0–2 | 314 (95.4%) |
| 3–5 | 15 (4.6%) |
| Aneurysm location | |
| ICA | |
| Petrous | 7 (1.8%) |
| Cavernous | 63 (16.6%) |
| Paraophthalmic | 212 (55.8%) |
| PcomA | 34 (9%) |
| ACA/AcomA | 5 (1.3%) |
| MCA | 8 (2.1%) |
| Posterior circulation | 51 (13.4%) |
| Aneurysm shape | |
| Saccular | 257 (67.6%) |
| Blister | 11 (2.9%) |
| Fusiform | 102 (26.9%) |
| Dissecting | 10 (2.6%) |
| Aneurysm measurements (median) (range) (mm) | |
| Maximal diametera | 7.7 (1–44.5) |
| Neck size (for saccular aneurysms)b | 4 (1–15.6) |
| Dome-to-neck ratio (for saccular aneurysms)b | 1.3 (0.4–3.5) |
| Daughter sac | 94 (24.7%) |
| Subarachnoid hemorrhage | |
| Acute (<2 wk) | 10 (3%) |
| Remote (>2 wk) | 32 (9.7%) |
| Prior treatment | |
| Endovascular | 33 (8.7%) |
| Operation | 6 (1.6%) |
| Both | 4 (1.1%) |
Note:—ACA indicates anterior cerebral artery; PcomA, posterior communicating artery; AcomA, anterior communicating artery.
a
Data are missing for 11 aneurysms.
b
Data are missing for 41 aneurysms.