The Journal of Cerebrovascular and Endovascular Neurosurgery

Abstract - Case Report

J Cerebrovasc Endovasc Neurosurg. 2023 25(2): 208-213

Retreatment of a recurrent giant aneurysm of the internal carotid artery after treatment with a flow-diverting stent

Ginam Kim, Junhyung Kim, Sang Kyu Park, Joonho Chung

Department of Neurosurgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea

Flow-diverting stents (FDSs) have proven advantageous for the treatment of large, fusiform, and dissecting aneurysms that are otherwise difficult to treat. Retreatment strategies for recurrent large or giant aneurysms after FDSs are limited to overlapping implantation of an additional FDS or definitive occlusion of the parent vessel. We report a recurrent giant aneurysm that was initially treated with an FDS with coils and was successfully treated with an additional FDS. Visual symptoms due to the mass effect of the recurrent aneurysm were completely resolved, and follow-up digital subtraction angiography revealed complete obliteration of the aneurysm. Additional FDS implantation for the retreatment of incompletely occluded aneurysms after the initial FDS treatment may be feasible and safe. Further studies are required to validate these results.

Key words : Endovascular treatment, Flow diverter, Internal carotid artery, Intracranial aneurysm, Recurrence