Demographics, outcomes, and mortality rates from microsurgical clipping series of distal ACA aneurysms
| Reference | No. Pts. | No. Ruptured | HH Grade (%) | Mean Aneurysm Size (mm) | Favorable Outcome (GOS 4 or 5) | Mortality: Ruptured Aneurysms (%) | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| I–II | III | IV–V | Overall (%) | Unruptured (%) | HH I–II (%) | HH III–V (%) | |||||
| Proust et al, 19972 | 43 | 35 | 42.9 | 25.7 | 31.4 | − | 69.8 | 87.5 | 80 | 55 | 14.3 |
| de Sousa et al, 19991 | 72 | 65 | 69.2 | 1.5 | 29.2 | – | 84.7 | 100 | 88.9 | 70 | 7.7 |
| Steven et al, 20078 | 59 | 36 | 36.1 | 36.1 | 27.7 | 7.9 | 71.2 | 91.3 | 92.3 | 39.1 | 16.7 |
| Lehecka et al, 200725 | 62 | 258 | 48.9 | 18.5 | 32.6 | 4.8* | 78.2 | 86.5 | 90.2 | 58.6 | 13 |
↵* Value corresponds to all 470 patients in that study, including conservatively managed cases.