Reconstruction of intracranial vertebral artery with radial artery and occipital artery grafts for fusiform intracranial vertebral aneurysm not amenable to endovascular treatment: technical note.

Acta neurochirurgica

PubMedID: 23649987

Kubota H, Tanikawa R, Katsuno M, Noda K, Ota N, Miyata S, Yabuuchi T, Izumi N, Bulsara KR, Hashimoto M. Reconstruction of intracranial vertebral artery with radial artery and occipital artery grafts for fusiform intracranial vertebral aneurysm not amenable to endovascular treatment: technical note. Acta Neurochir (Wien). 2013;155(8):1517-24.
BACKGROUND
Symptomatic fusiform intracranial vertebral artery aneurysms pose a formidable treatment challenge when not amenable to endovascular treatment. In this paper, we illustrate the microsurgical management of such an aneurysm.

METHODS
To prevent neurological deterioration, anatomical reconstruction preserving all vessels including posterior inferior cerebellar artery and perforators is essential. In this case illustration, the occipital artery was used as a donor to a perforator originating from the aneurysmal segment. This bypass was performed in an end-to-side fashion. Subsequently, the aneurysmal component of the vertebral artery was resected and an end-to-side (V4 to V3) bypass was performed using a radial artery graft.

RESULTS
The patient achieved complete resection of the aneurysm preserving normal anatomy of the posterior circulation without any ischemic complications.

CONCLUSIONS
Complex cerebral artery bypass techniques are essential in the armamentarium of cerebrovascular for the treatment of complex lesions not amenable to endovascular therapy.