| Variable | Causes for other determined etiology (n=37) |
|---|---|
| Arterial dissection | 21 (56.8) |
| Extracranial internal carotid artery | 8 (21.6) |
| Intracranial internal carotid artery | 1 (2.7) |
| Extracranial vertebral artery | 6 (16.2) |
| Intracranial vertebral artery | 3 (8.1) |
| Middle cerebral artery | 3 (8.1) |
| Vasculitis meningitis | 4 (10.8) |
| Moyamoya diseases | 4 (10.8) |
| Takayasu’s diseases | 3 (8.1) |
| Systemic lupus erythematosus | 3 (8.1) |
| Sneddon’s syndrome | 1 (2.7) |
| Familial protein C, S deficiency | 1 (2.7) |