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- Title
Frequency and predictors of endoleaks and long-term patency after covered stent placement for the treatment of intracranial aneurysms: a prospective, non-randomised multicentre experience.
- Authors
Zhu YQ; Li MH; Lin F; Song DL; Tan HQ; Gu BX; Zhang HQ; Leng B; Zhang PL; Zhu, Yue-Qi; Li, Ming-Hua; Lin, Feng; Song, Dong-Lei; Tan, Hua-Qiao; Gu, Bin-Xian; Zhang, Hong-Qi; Leng, Bin; Zhang, Pei-Lei
- Abstract
<bold>Objective: </bold>We investigated immediate/late endoleaks and long-term patency following stent-graft placement for treatment of intracranial aneurysms located within the distal internal carotid artery (ICA) or vertebral artery (VA).<bold>Methods: </bold>Forty-five aneurysms in 41 patients receiving covered stents in three centres were followed. Outcome measures included aneurysm occlusion rate, endoleaks, late in-stent stenosis rate, clinical improvement, neurological deficiencies and death.<bold>Results: </bold>Total aneurysm exclusion was achieved in 69.2% (n = 27), with 30.8% (n = 12) experiencing immediate residual endoleaks. Angiographic follow-up (mean 43.5 ± 14.3 months) revealed that 87.2% (n = 34) were completely occluded with only 12.8% (n = 5) showing residual endoleaks. Predictors of immediate endoleaks in our patient group were stent number (P = 0.023) and stent diameter (P = 0.022), while predictors of late endoleaks in our patient group were stent diameter (P = 0.035) and stent angulation (P = 0.021). Late in-stent stenosis rates were 18.0 ± 13.3 and 29.0 ± 18.5% compared with the period immediately following implantation at 2- and 6-year follow-ups respectively. Smoking (P = 0.017) and stent angulation (P = 0.020) were predictors of late in-stent stenosis.<bold>Conclusion: </bold>Treating intracranial aneurysms with Willis stent-grafts has an acceptable immediate and late occlusion rate and long-term stented artery patency rate.
- Publication
European Radiology, 2013, Vol 23, Issue 1, p287
- ISSN
0938-7994
- Publication type
journal article
- DOI
10.1007/s00330-012-2581-4