Stent-Assisted Coil Embolization of Vertebrobasilar Dissecting Aneurysms: Procedural Outcomes and Factors for Recanalization

摘要: Objective Outcomes of stent-assisted coil embolization (SACE) have not been well established in the setting vertebrobasilar dissecting aneurysms (VBDAs) due to low percentage cases that need treatment and array available therapeutic options. Herein, we presented clinical radiographic results SACE patients with VBDAs. Materials methods A total 47 (M:F, 30:17; mean age ± SD, 53.7 12.6 years), a VBDA who underwent between 2008 2014 at two institutions were evaluated retrospectively. Medical records radiologic data analyzed assess outcome procedures. Cox proportional hazards regression analysis was conducted determine factors associated aneurysmal recanalization after SACE. Results Stent-assisted technically succeeded all patients. Three cerebellar infarctions occurred on postembolization day 1, week 2, month but no other procedure-related complications developed. Immediately following SACE, 25 (53.2%) showed contrast filling into sac. During follow-up 20.2 months, 37 lesions (78.7%) appeared completely occluded, whereas 10 recanalization, 5 which required additional embolization. Overall rate 12.64% per lesion-year, postoperative time 18 months (range, 3-36 months). In multivariable analysis, major branch involvement (hazard ratio [HR]: 7.28; p = 0.013) presence residual sac (HR: 8.49, 0.044) identified as statistically significant independent predictors recanalization. No bleeding encountered monitoring. Conclusion appears feasible safe for Long-term acceptable majority studied, despite relatively high incomplete occlusion immediately Major coiled may predispose