Periprocedural complications
| Flow diverter could not be delivered through microcatheter | 2 (2%) |
| Flow diverter did not open | 3 (3%) |
| Flow diverter twisted | 1 (1%) |
| Flow diverter displaced(proximally, distally) | 6 (6%) [4, 2] |
| Fish mouthing of the DED *(proximal, distal) | 11 (11.5%) [9, 2] |
| ICA dissection | 1 (1%) |
| Parent vessel occlusion(thrombus, DED related) | 4 (4%) [1, 3] |
| Multiple embolic infarcts | 1 (1%) |
| Symptomatic intracranial hemorrhage | 1 (1%) |
| Femoral artery pseudoaneurysm, groin hematoma, retroperitoneal hematoma | 4 (4%) |
*Eight cases signaled by core laboratory, three cases reported by enrolling center; ICA=internal carotid artery.
DED, Derivo embolization device.