Frequency of EVT procedural complications
| EVT Procedural Complications | Frequency (No.) (%) |
|---|---|
| Significant at access site < 7 days | 13 (1.9%) |
| External bleeding | 6 (46.2%) |
| Internal hematoma | 7 (53.8%) |
| Any local arterial damage at access site <7 days | 9 (1.3%) |
| Cerebral arterial complications, ie, dissection (n = 27) and treated vasospasm (n = 1) | 28 (4.1%) |
| Embolization in previously normal territory | 21 (3.1%) |
| Arterial intracranial perforation during EVT (observed acutely, SAH on subacute imaging) | 42 (6.1%) |
| Total EVT procedure complications | 113 (16.5%) |