PMID- 27587971 OWN - NLM STAT- MEDLINE DCOM- 20170731 LR - 20221207 IS - 2005-8330 (Electronic) IS - 1229-6929 (Print) IS - 1229-6929 (Linking) VI - 17 IP - 5 DP - 2016 Sep-Oct TI - Stent-Assisted Coil Embolization of Vertebrobasilar Dissecting Aneurysms: Procedural Outcomes and Factors for Recanalization. PG - 801-10 LID - 10.3348/kjr.2016.17.5.801 [doi] AB - OBJECTIVE: Outcomes of stent-assisted coil embolization (SACE) have not been well established in the setting of vertebrobasilar dissecting aneurysms (VBDAs) due to the low percentage of cases that need treatment and the array of available therapeutic options. Herein, we presented clinical and radiographic results of SACE in patients with VBDAs. MATERIALS AND METHODS: A total of 47 patients (M:F, 30:17; mean age +/- SD, 53.7 +/- 12.6 years), with a VBDA who underwent SACE between 2008 and 2014 at two institutions were evaluated retrospectively. Medical records and radiologic data were analyzed to assess the outcome of SACE procedures. Cox proportional hazards regression analysis was conducted to determine the factors that were associated with aneurysmal recanalization after SACE. RESULTS: Stent-assisted coil embolization technically succeeded in all patients. Three cerebellar infarctions occurred on postembolization day 1, week 2, and month 2, but no other procedure-related complications developed. Immediately following SACE, 25 aneurysms (53.2%) showed no contrast filling into the aneurysmal sac. During a mean follow-up of 20.2 months, 37 lesions (78.7%) appeared completely occluded, whereas 10 lesions showed recanalization, 5 of which required additional embolization. Overall recanalization rate was 12.64% per lesion-year, and mean postoperative time to recanalization was 18 months (range, 3-36 months). In multivariable analysis, major branch involvement (hazard ratio [HR]: 7.28; p = 0.013) and the presence of residual sac filling (HR: 8.49, p = 0.044) were identified as statistically significant independent predictors of recanalization. No bleeding was encountered in follow-up monitoring. CONCLUSION: Stent-assisted coil embolization appears feasible and safe for treatment of VBDAs. Long-term results were acceptable in a majority of patients studied, despite a relatively high rate of incomplete occlusion immediately after SACE. Major branch involvement and coiled aneurysms with residual sac filling may predispose to recanalization. FAU - Jeon, Jin Pyeong AU - Jeon JP AD - Department of Neurosurgery, Hallym University College of Medicine, Chuncheon 24253, Korea. FAU - Cho, Young Dae AU - Cho YD AD - Department of Radiology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul 03080, Korea. FAU - Rhim, Jong Kook AU - Rhim JK AD - Department of Neurosurgery, Jeju National University College of Medicine, Jeju National University Hospital, Jeju 63241, Korea. FAU - Park, Jeong Jin AU - Park JJ AD - Department of Neurology, Konkuk University Hospital, Konkuk University School of Medicine, Seoul 05030, Korea. FAU - Cho, Won-Sang AU - Cho WS AD - Department of Neurosurgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul 03080, Korea. FAU - Kang, Hyun-Seung AU - Kang HS AD - Department of Neurosurgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul 03080, Korea. FAU - Kim, Jeong Eun AU - Kim JE AD - Department of Neurosurgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul 03080, Korea. FAU - Hwang, Gyojun AU - Hwang G AD - Department of Neurosurgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam 13620, Korea. FAU - Kwon, O-Ki AU - Kwon OK AD - Department of Neurosurgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam 13620, Korea. FAU - Han, Moon Hee AU - Han MH AD - Department of Radiology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul 03080, Korea.; Department of Neurosurgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul 03080, Korea. LA - eng PT - Evaluation Study PT - Journal Article PT - Multicenter Study DEP - 20160823 PL - Korea (South) TA - Korean J Radiol JT - Korean journal of radiology JID - 100956096 SB - IM MH - Adult MH - Aged MH - Aortic Dissection/*therapy MH - Brain Infarction/etiology MH - Embolization, Therapeutic/adverse effects/*methods MH - Female MH - Follow-Up Studies MH - Humans MH - Intracranial Aneurysm/*therapy MH - Male MH - Middle Aged MH - Recurrence MH - Retreatment/methods MH - Retrospective Studies MH - Risk Factors MH - *Stents MH - Treatment Outcome MH - Vertebral Artery PMC - PMC5007409 OTO - NOTNLM OT - Aneurysm OT - Dissecting aneurysm OT - Posterior circulation OT - Stents EDAT- 2016/09/03 06:00 MHDA- 2017/08/02 06:00 PMCR- 2016/09/01 CRDT- 2016/09/03 06:00 PHST- 2015/08/13 00:00 [received] PHST- 2016/04/24 00:00 [accepted] PHST- 2016/09/03 06:00 [entrez] PHST- 2016/09/03 06:00 [pubmed] PHST- 2017/08/02 06:00 [medline] PHST- 2016/09/01 00:00 [pmc-release] AID - 10.3348/kjr.2016.17.5.801 [doi] PST - ppublish SO - Korean J Radiol. 2016 Sep-Oct;17(5):801-10. doi: 10.3348/kjr.2016.17.5.801. Epub 2016 Aug 23.