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  • Title: Safety and long-term efficacy of endovascular treatment of small posterior communicating artery aneurysms by coiling with or without stent: a single center retrospective study.
    Author: Yao PF, Yu Y, Yang PF, Xu Y, Hong B, Zhao WY, Liu JM, Huang QH.
    Journal: Clin Neurol Neurosurg; 2013 Dec; 115(12):2502-7. PubMed ID: 24210269.
    Abstract:
    OBJECTIVES: Endovascular stents have been widely used in intracranial aneurysm embolization. In this work, we compared the safety and long-term efficacy of stent-assisted coiling with those of conventional coiling for small posterior communicating artery aneurysms, aiming at a better understanding of the related safety and efficacy profiles. METHODS: Between January 2008 and December 2011, 114 small PcomA aneurysms (defined as 3mm≤maximum diameter<10mm in this study) in 108 patients were treated by endovascular treatment in our department. Patient demographics, aneurysm characteristics, angiographic results (initial and follow-up), and procedural complications were assessed. RESULTS: Embolization was successfully performed in all the patients. Complications occurred in 7.4% of patients in both groups. There was no associated mortality. Based on initial post-procedural angiography, the rate of complete aneurysm occlusion, neck remnant and residual sac in the stented group were 37.9%, 24.1%, and 37.9%, while in the conventional group the figures were 42.9%, 48.2%, and 8.9%, respectively. The initial angiographic results were significantly better in the conventional group, compared with the stented group (P=0.038). The follow-up results showed that the rate of improvement in the stented group was significantly higher (53.3% vs. 14.0%; P<0.001) and the recurrence rate was significantly lower than that in the conventional group (4.4% vs. 3.02%; P=0.001). CONCLUSION: Compared with conventional coiling, stent-assisted coiling of the small posterior communicating artery aneurysms does not increase the risk. Stents bear an advantage in reducing the recurrence rate, increasing progressive occlusion rate, and improving long-term prognosis in endovascular treatment of intracranial aneurysms.
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