Table 1.
Characteristics of included SAH patients
| aSAH (N = 166) | anSAH (N = 55) | |
|---|---|---|
| Number of women | 114 (68.7%) | 23 (41.8%) |
| Age at time of the SAH in years, mean (SD) | 54.0 (10.0) | 55.4 (10.2) |
| Time since SAH in years, mean (range) | 6.8 (3‐10) | 6.9 (3‐10) |
| WFNS | ||
| Low (1–3) | 131 (78.9%) | 50 (90.9%) |
| High (4–5) | 35 (21.1%) | 5 (9.1%) |
| External CSF drainage (ventricular or lumbar) | 84 (50.6%) | 16 (29.1%) |
| VP shunt for chronic hydrocephalus (after external drainage) | 17 (10.2%) | 1 (1.8%) |
| Treatment aSAH | ||
| Clipping | 57 (34.3%) | N/A |
| Coiling | 107 (64.5%) | N/A |
| None | 2 (1.2%) | N/A |
| Aneurysm circulationa | ||
| Anterior | 140 (84.3%) | N/A |
| Posterior | 26 (15.7%) | N/A |
| Motor impairment | ||
| Yes | 4 (2.4%) | 0 (0%) |
| No | 162 (97.6%) | 55 (100%) |
anSAH, angiographically negative subarachnoid hemorrhage; aSAH, aneurysmal subarachnoid hemorrhage; CSF, cerebrospinal fluid; N/A, not applicable; SAH, subarachnoid hemorrhage; VP shunt, ventriculoperitoneal shunt; WFNS, World Federation of Neurological Surgeons. aAnterior: aneurysms of the anterior cerebral or communicating artery, middle cerebral artery, posterior communicating artery, internal carotid artery, ophthalmic artery and anterior choroidal artery. Posterior: aneurysms of the basilar artery, posterior cerebral artery, superior cerebellar artery and vertebral artery.