Table 1.
Patient characteristics. The percentages given refer to the total number of patients per subgroup. ACA, anterior cerebral artery; Acom, anterior communicating artery; BA, basilar artery; ICA, internal carotid artery; MCA, middle cerebral artery; mRS, modified Rankin scale; N, number of patients; PcaA, pericallosal artery; PCOM, posterior communicating artery; PICA, posterior inferior cerebellar artery; SCA, superior cerebellar artery; VA, vertebral artery.
| All Patients | With EVD | Without EVD | |
|---|---|---|---|
| No. (%) | No. (%) | No. (%) | |
| Total | 124 (100) | 45 (100) | 79 (100) |
| Age | |||
| <50 years | 41 (33.1) | 8 (17.8) | 33 (41.8) |
| ≥50 years | 83 (66.9) | 37 (82.2) | 46 (58.2) |
| Sex | |||
| Female | 83 (66.9) | 32 (71.1) | 51 (64.6) |
| Male | 41 (33.1) | 13 (28.9) | 28 (35.4) |
| WFNS grade | |||
| I–III | 61 (49.2) | 10 (22.2) | 51 (64.6) |
| IV–V | 63 (50.8) | 35 (77.8) | 28 (35.4) |
| Fisher grade | |||
| 0–II | 22 (17.7) | 1 (2.2) | 21 (26.6) |
| III–IV | 102 (82.3) | 44 (97.8) | 58 (73.4) |
| Aneurysm location | |||
| ACA | 1 (0.8) | 0 (0.0) | 1 (1.3) |
| Acom | 49 (39.5) | 17 (37.8) | 32 (40.5) |
| BA | 12 (9.7) | 8 (17.8) | 4 (5.1) |
| ICA | 5 (4.0) | 3 (6.7) | 2 (2.5) |
| MCA | 21 (16.9) | 6 (13.3) | 15 (19.0) |
| PcaA | 4 (3.2) | 1 (2.2) | 3 (3.8) |
| PCOM | 14 (11.3) | 2 (4.4) | 12 (15.2) |
| PICA | 10 (8.1) | 7 (15.6) | 3 (3.8) |
| SCA | 2 (1.6) | 0 (0.0) | 2 (2.5) |
| VA | 4 (3.2) | 1 (2.2) | 3 (3.8) |
| Other | 2 (1.6) | 0 (0.0) | 2 (2.5) |
| Therapy | |||
| Endovascular | 59 (47.6) | 24 (53.3) | 35 (44.3) |
| Surgical | 59 (47.6) | 19 (42.3) | 40 (50.6) |
| Combined/no treatment | 6 (4.8) | 2 (4.4) | 4 (5.1) |
| mRS 6 months | |||
| 0–2 | 76 (61.3) | 18 (40.0) | 58 (73.4) |
| 3–5 | 24 (19.4) | 12 (26.7) | 12 (15.2) |
| 6 | 24 (19.4) | 15 (33.3) | 9 (11.4) |