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: | Yue-Qi Zhu Ming-Hua Li Feng Lin Dong-Lei Song Hua-Qiao Tan Bin-Xian Gu Hong-Qi Zhang Bin Leng Pei-Lei Zhang |
| |
Institution: | 1. Department of Diagnostic and Interventional Radiology, The Sixth Affiliated People’s Hospital, Medical School of Shanghai Jiao Tong University, No. 600, Yi Shan Road, Shanghai, 200233, China 2. Department of Neurosurgery, Capital Medical University Affiliated Xuanwu Hospital, No. 45, Changchun Street, Beijing, 100053, China 3. Department of Neurosurgery, Fudan University Affiliated Huashan Hospital, No. 12, Wulumuqi Road, Shanghai, 200040, China
|
| |
Abstract: | Objective 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). Methods 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. Results 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. Conclusion Treating intracranial aneurysms with Willis stent-grafts has an acceptable immediate and late occlusion rate and long-term stented artery patency rate. Key Points ? Covered stents can be a treatment option for intracranial aneurysms. ? Technical success for treating distal ICA and VA aneurysms can reach 97.6%. ? However immediate and late endoleaks occur in 30.8 and 12.8% respectively. ? The number, diameter and angulation of stents are possible predictors of endoleaks. ? Smoking and stent angulation seem to predict late in-stent stenosis. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|