Characteristics of 48 patients with 58 incidental aneurysms that were coiled and of 41 patients with 53 incidental aneurysms that were not treated
| 48 Patients with 58 Coiled Aneurysms | 41 Patients with 53 Untreated Aneurysms | P Value | |
|---|---|---|---|
| Mean age | 53.6 y(median 52, range 26–75) | 60.6 y(median 63, range 46–74) | .0006 |
| Multiple aneurysms | 19/48 (39.6%) | 7/41 (17%) | .035 |
| Mean aneurysm size | 10.9 mm(median 9, range 3–40) | 9.2 mm(median 8, range 3–30) | .461 |
| Aneurysms with wide neck | 8/58 (13.8%) | 29/53 (54.7%) | <.0001 |
| Location on carotid artery | 27/58 (47%) | 13/53 (25%) | .010 |
| Location on middle cerebral artery | 5/58 (9%) | 15/53 (29%) | .014 |
| Location on anterior cerebral artery | 6/58 (10%) | 10/53 (19%) | .309 |
| Location on posterior circulation | 20/58 (34%) | 14/53 (27%) | .472 |