Aetiologies for distal embolisation despite the use of distal protection devices
| 1 | Emboli during primary crossing |
| Occlude vessel during primary crossing | |
| 2 | Incomplete capture |
| Non-apposition | |
| Filter movement | |
| Embolisation during retrieval | |
| 3 | Injury at deployment site |
| 4 | Soluble mediators/small particles |
| 5 | Emboli off device |
| 6 | No-flow with filter-filter overload |
Salter et al40