“…With FDS deployment, a higher risk of FDS migration may occur in the extracranial ICA than in intracranial vessels because of the high luminal pressure and frequent positional changes with neck movement; thus, proximal migration of the FDS is oversized relative to that of the extracranial ICA [81]. For some extracranial ICA injuries, CAS can be performed after FDS deployment because the FDA can easily pass the complex and tortuous ICA segment [85].…”