Patient characteristics and results
| Embolisation with coils (n=44) | Neurosurgical clipping (n=44) | ||
|---|---|---|---|
| *One patient also had a haemorrhage during treatment. CT, computed tomography; GOS, Glasgow outcome scale; SAH, subarachnoid haemorrhage; WFNS, World Federation of Neurosurgical Societies score. | |||
| Female sex (n (%)) | 29 (66%) | 26 (59%) | |
| Age (years) (mean) | 47.0 | 44.2 | |
| Time interval between SAH and first treatment (days) (median, range) | 16 (1 to 120) | 13 (1 to 70) | |
| Clinical condition before treatment (n (%)) | WFNS I–III | 41 (93) | 43 (98) |
| WFNS IV–V | 3 (7) | 1 (2) | |
| Amount of blood on CT scan (n (%)) | Small | 14 (32) | 12 (27) |
| Moderate | 10 (23) | 3 (7) | |
| Substantial | 15 (34) | 24 (55) | |
| Unknown | 5 (11) | 5 (11) | |
| Aneurysm size (n (%)) | 0–10 mm | 23 (52) | 16 (36) |
| 11–25 mm | 17 (39) | 25 (57) | |
| >25 mm | 4 (9) | 3 (7) | |
| Complications (n (%)) | |||
| Haemorrhage during treatment | All | 3 (7) | 6 (14) |
| Without permanent neurological deficit | 1 (2) | 2 (5) | |
| With permanent neurological deficit | 1 (2) | 1 (2) | |
| Resulting in death | 1 (2) | 2 (5) | |
| Ischaemia during treatment | All | – | 12 (27) |
| Without permanent neurological deficit | – | 4 (9) | |
| With permanent neurological deficit | – | 6 (14) | |
| Resulting in death | – | 2 (5)* | |
| Recurrent haemorrhage after treatment | All | 1 (2) | 1 (2) |
| Without permanent neurological deficit | – | – | |
| With permanent neurological deficit | – | – | |
| Resulting in death | 1 (2) | 1 (2) | |
| Ischaemia after treatment | All | 2 (5) | 3 (7) |
| Without permanent neurological deficit | – | 1 (2) | |
| With permanent neurological deficit | 2 (5) | 2 (5) | |
| Resulting in death | – | – | |
| Clinical outcome | GOS score (n (%)) | ||
| I (death) | 2 (4) | 5 (11) | |
| II-III (functionally dependent) | 3 (7) | 8 (18) | |
| IV-V (functionally independent | 39 (89) | 31 (71) | |