All adverse events within 24 hours (adjudicated)
| Adverse event type | No. of subjects (%) |
| Stroke (minor) | 10/117 (8.5%) |
| Stroke (major) | 2/117 (1.7%) |
| Intraprocedural aneurysm rupture | 2/117 (1.7%) |
| Vascular access site complication | 4/117 (3.4%) |
| Electrolyte disorder | 2/117 (1.7%) |
| Hydrocephalus | 1/117 (0.9%) |
| Vasospasm | 1/117 (0.9%) |
| Respiratory failure | 1/117 (0.9%) |
| Urine infection | 1/117 (0.9%) |