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 ORIGINAL ARTICLE
Year : 2011  |  Volume : 59  |  Issue : 6  |  Page : 833--838

Characteristics and endovascular treatment of intracranial vertebral artery aneurysms


Department of Neurosurgery, Zhongshan Hospital, Dalian University, Dalian, China

Correspondence Address:
Dongfeng Deng
Jiefang Street, Zhongshan District, 116001, Dalian
China
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DOI: 10.4103/0028-3886.91360

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Objective: The clinical and angiographic characteristics of vertebral artery (VA) aneurysm were evaluated to demonstrate the safety and efficacy of endovascular techniques of VA aneurysms. Materials and Methods: Case records of 38 consecutive patients with 40 VA aneurysms admitted during a 2-year period were reviewed. The data analyzed included age, sex, size of aneurysm, ruptured or unruptured, endovascular techniques, angiographic results after embolization, duration of follow-up, angiographic follow-up results and Glasgow Outcome Score at follow-up. Results: Of the 38 patients, 33 patients had 35 dissecting aneurysms and five patients had five saccular aneurysms. Seventeen (42.5%) aneurysms were ruptured. Of the 34 patients treated with endovascular techniques, immediate post-procedural angiograms showed complete and subtotal occlusion (>90%) of 27 (67.5%) aneurysms and incomplete and no occlusion of 13 (32.5%) aneurysms, including four conservatively treated aneurysms. A clinical improvement or stable outcome was achieved in all the patients (100%) during a mean 12.1-month follow-up. There was no complication related to endovascular treatment and no rebleeding during the follow-up period. Angiographic follow-up (mean of 7.2 months, range 1-18 months) was available in all the patients. Complete and subtotal occlusion was observed in 31 (81.6%) patients, including one spontaneous thrombosis of a conservatively treated VA dissecting aneurysm. Recanalization in two patients (5.9%) at 6 and 9 months did not require retreatment. Conclusion: This series demonstrates the safety and efficacy of multimodality of endovascular techniques for VA aneurysms.






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