With Hydrocephalus | Without Hydrocephalus | Total | |||
---|---|---|---|---|---|
Initial hydrocephalus | Subsequent hydrocephalus | ||||
N = 82 | N = 22 | N = 64 | N = 168 | ||
Location of aneurysm | |||||
Single (n = 156) | |||||
Anterior communicating artery aneurysm | 19 | 8 | 24 | 51 | |
Posterior communicating artery aneurysm | 21 | 3 | 7 | 31 | |
Middle cerebral artery aneurysm | 8 | 3 | 10 | 21 | |
Internal carotid artery aneurysm | 8 | 3 | 8 | 19 | |
Vertebral artery | 4 | 1 | 3 | 8 | |
Othersη | 16 | 3 | 7 | 26 | |
Multiple sites (N = 12) | 6 | 1 | 5 | 12 | |
Diameter of aneurysm (mm)Ф | 0.75 ± 0.20 | 0.71 ± 0.25 | 0.67 ± 0.32 | 0.68 ± 0.31 | |
Shape of aneurysmЄ | |||||
Pouch | 54 | 17 | 52 | 133 | |
Lobulation | 13 | 3 | 8 | 24 | |
Fusiform | 9 | 2 | 1 | 12 | |
dissection | 4 | 0 | 2 | 6 | |
Wide neck | 2 | 0 | 1 | 3 |