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A Newly-Developed Flow Diverter (FloWise) for Internal Carotid Artery Aneurysm: Results of a Pilot Clinical Study

Authors
 Byung Moon Kim  ;  Keun Young Park  ;  Jae Whan Lee  ;  Joonho Chung  ;  Dong Joon Kim  ;  Dong Ik Kim 
Citation
 KOREAN JOURNAL OF RADIOLOGY, Vol.20(3) : 505-512, 2019 
Journal Title
 KOREAN JOURNAL OF RADIOLOGY 
ISSN
 1229-6929 
Issue Date
2019
Keywords
Flow diversion ; Intracranial aneurysm ; New device
Abstract
OBJECTIVE: We report the results of a pilot clinical study that evaluated the safety and efficacy of a newly-developed, retrievable flow diverter (FloWise; Taewoong Medical) for the treatment of internal carotid artery (ICA) aneurysm. MATERIALS AND METHODS: A total of 10 patients were enrolled. Inclusion criteria were 1) unruptured aneurysm with a dome size of ≥ 8 mm and a neck size of ≥ 4 mm at the ICA, or 2) two or more unruptured aneurysms of any size able to be spanned by a single FloWise at the ICA. Co-primary effectiveness end points were technical success of FloWise placement, and a 50% or greater decrease in aneurysm volume at the 6-month follow-up angiogram. The primary safety end point was the new development of neurological deficits persisting for more than 1-month post-treatment. RESULTS: Ten patients harboring 14 ICA aneurysms (median diameter, 9.4 mm; range, 2.3-31.0 mm) were enrolled between January 2016 and July 2017. FloWise placement was successful in all patients. There were no newly-developed neurological deficits during the 6-month clinical follow-up period. One patient did not receive follow-up imaging due to pregnancy. Nine patients with 12 aneurysms received a 6-month angiographic follow-up. Ten aneurysms (83.3%) showed decreases in volume greater than 50% (mean volume decrease, 82.8 ± 32.9%), of which 8 (66.7%, 95% confidence interval, 35.4-98.0%) showed complete occlusion. One patient was retreated due to mass symptom aggravation. CONCLUSIONS: In this pilot study, FloWise appeared to be safe and effective for ICA aneurysm treatment. A prospective multicenter study to validate the effectiveness and safety of FloWise would be worthwhile.
Files in This Item:
T201901024.pdf Download
DOI
10.3348/kjr.2018.0421
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers
Yonsei Authors
Lee, Jae Whan(이재환)
Chung, Joon Ho(정준호)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/169523
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