Baseline characteristics
| Characteristics | All patients (n=14) |
| Age (years) | |
| Median (IQR) | 64 (21.5) |
| Gender | |
| Female | 12 |
| Smoking history | |
| Current | 3 |
| Ex-smoker | 1 |
| Current aspirin | 3 |
| Fisher grade | |
| Median | IV |
| WFNS grade | |
| Median | 2.5 |
| ≥IV | 6 |
| Aneurysm size | |
| Median (IQR) | 7 (9.25) mm |
| Mean | 8.8 mm |
| >10 mm | 5 |
| Aneurysm location | |
| Anterior circulation | 8 |
| ICA M1 | 3 |
| VA | 3 |
| PICA | 2 |
| A1/2 | 2 |
| AComA | 1 |
| PComA | 1 |
| AChA | 1 |
| A2 | 1 |
| Aneurysm morphology | |
| Saccular | 7 |
| Fusiform | 5 |
| Blister | 2 |
A1/2, anterior cerebral artery first/second segment; AChA, anterior choroidal artery; AComA, anterior communicating artery; ICA, internal carotid artery; M1, middle cerebral artery, first segment; PICA, posterior inferior cerebellar artery; PComA, Posterior communicating artery; VA, vertebral artery; WFNS, World Federation of Neurological Societies.