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  • Title: Single-centre comparison of procedural complications, clinical outcome, and angiographic follow-up between coiling and stent-assisted coiling for posterior communicating artery aneurysms.
    Author: Liu YQ, Wang QJ, Zheng T, Zhang X, Li XF, Cui XB, Gao YY, Lai LF, Su SX, He XY, Duan CZ.
    Journal: J Clin Neurosci; 2014 Dec; 21(12):2140-4. PubMed ID: 25037315.
    Abstract:
    Aneurysm recurrence is a principle limitation of endovascular coiling procedures, especially in posterior communicating artery aneurysms, with reported recurrence rates of >30%. The adjunctive use of self-expandable stents has revolutionised the treatment of intracranial aneurysms, especially for complex morphologies, wide necks, or unfavourable dome-to-neck ratios. However, there are limited data concerning a direct comparison between simple coiling and stent-assisted coiling in posterior communicating artery aneurysms. This study aimed to compare the durability and outcomes of coiling versus stent-assisted coiling procedures. Imaging data of patients with posterior communicating artery aneurysms treated with coiling or stent-assisted coiling between January 2008 and October 2012 were retrospectively analysed. The initial angiographic results, procedural complications, and clinical outcomes were assessed at discharge. Imaging follow-up was performed with cerebral angiography. Complete aneurysm occlusion was achieved on initial angiography in 23/56 (41.1%) stent and 83/235 (35.3%) non-stent patients. At the latest follow-up (mean follow-up 14.3 ± 10.4 months for stent and 13.2 ± 9.5 months for non-stent patients), aneurysms had recurred in 5/47 (10.6%) stent and 57/203 (28.1%) non-stent patients (p=0.014). Procedural complications occurred in 6/56 (10.7%) stent and 27/235 (11.5%) non-stent aneurysms. No rebleeding occurred during clinical follow-up (mean duration, 46.7 months). Recurrence rates at the latest follow-up were significantly lower in patients undergoing stent-assisted coiling than those undergoing simple coiling. Thus, use of the stent-assisted neck remodelling technique in the treatment of wide-necked posterior communicating artery intracranial aneurysms appears to improve the long-term clinical outcome.
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