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 ORIGINAL ARTICLE
Year : 2012  |  Volume : 60  |  Issue : 6  |  Page : 597--603

Endovascular management of giant intracranial aneurysms of the posterior circulation


Department of Interventional Neuroradiology, Seth GS Medical College and KEM Hospital, Parel, Mumbai, India

Correspondence Address:
Uday S Limaye
Department of Radiology, Division of Interventional Neuroradiology, KEM Hospital, Parel, Mumbai
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0028-3886.105193

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Background: Large size, and location in posterior circulation, both individually portend high risk in the endovascular management of intracranial aneurysms. Aim: The purpose of this study was to investigate the outcome of endovascular management of giant posterior circulation aneurysms at our centre. Materials and Methods: This is a retrospective analysis of 22 consecutive patients with giant posterior circulation aneurysms, who were managed by endovascular techniques between 1997 and 2009. The aneurysms included: Vertebral-6 (27%), basilar or vertebrobasilar - 7 (32%) and nine posterior cerebral artery (PCA) - 9 (41%). Results: There were 14 males and eight females with a mean age of 37 years. Treatment modalities included: Parent vessel sacrifice (PVS), coil embolization, flow reversal, stent-assisted coiling, and telescopic stent placement. Angiographic cure or stasis was achieved in 21 (95%) patients and no recurrence was observed in 17 of the 18 patients who had follow-up. Complications occurred in 9 (41%) patients, death in 4 and morbidity in 5 (3 with good eventual outcome). Overall, good clinical outcome was noted in 16 (73%) patients. The majority of the poor outcomes were observed in the management of basilar/vertebrobasilar aneurysms and flow reversal. Parent vessel sacrifice showed the best outcomes with stable results. Conclusions: Our results suggest that PVS remains the procedure of choice wherever possible and is relatively safe, particularly for giant vertebral and PCA aneurysms. When PVS is not feasible, stent-assisted coiling is a reasonable and safe option and requires follow-up. Management of basilar or vertebrobasilar aneurysms is complicated and still evolving.






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