Efficacy of the Flow Re-direction Endoluminal Device for cerebral aneurysms and causes of failed deployment

• DOI: 10.1007/s00234-021-02858-w
• Publication Date: 2021-11-13T17:02:32Z
• Authors: Kenichiro Suyama; Ichiro Nakahara; Shoji Matsumoto; Yoshio Suyama; Jun Morioka; Akiko Hasebe; Jun Tanabe; Sadayoshi Watanabe; Kiyonori Kuwahara
• Keywords: Neuroradiology; Digital subtraction angiography; Interventional radiology

The Flow Re-direction Endoluminal Device (FRED) has recently become available for flow diversion in Japan. We have encountered cases that failed to deploy the FRED. In this study, we report our initial experience with FRED cerebral aneurysms and clarify causes of deployment.A retrospective data analysis was performed identify patients treated between June 2020 March 2021. Follow-up digital subtraction angiography at 3 6 months assessed using O'Kelly-Marotta (OKM) grading scale.Thirty-nine 36 (average age: 54.4 years) were average sizes dome neck 9.9 mm 5.2 mm, respectively. nine patients, additional coiling performed. one patient (2.6%), proximal vessel injury caused direct carotid-cavernous fistula during deployment. Ischaemic complications (2.6%) transient symptoms. Angiographic follow-up revealed OKM grade C or D 86.6% patients. deployment successful 35 (92.1%) procedures. failure group, differences minimum diameter (P = 0.04) rate parent having an S-shaped curve greater than those success group.Flow is effective safe treating aneurysms. use oversizing more 2 should be considered carefully.