TY - JOUR T1 - Single-Layer WEBs: Intrasaccular Flow Disrupters for Aneurysm Treatment—Feasibility Results from a European Study JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 1942 LP - 1946 DO - 10.3174/ajnr.A4369 VL - 36 IS - 10 AU - J. Caroff AU - C. Mihalea AU - J. Klisch AU - C. Strasilla AU - A. Berlis AU - T. Patankar AU - W. Weber AU - D. Behme AU - E.A. Jacobsen AU - T. Liebig AU - S. Prothmann AU - C. Cognard AU - T. Finkenzeller AU - J. Moret AU - L. Spelle Y1 - 2015/10/01 UR - http://www.ajnr.org/content/36/10/1942.abstract N2 - BACKGROUND AND PURPOSE: The safety and efficiency of the dual-layer Woven EndoBridge (WEB) device has already been published. However, this international multicenter study sought to evaluate the safety of single-layer devices, which are the newest generation of the WEB intrasaccular flow-disrupter family. They have been designed to offer smaller-sized devices with a lower profile to optimize navigability and delivery, which may, in turn, broaden their range of use.MATERIALS AND METHODS: Data from all consecutive patients treated with a single-layer WEB device, in 10 European centers from June 2013 to May 2014 were included. Clinical presentations, technical details, intra- and perioperative complications, and outcomes at discharge were recorded. Clinical and angiographic data at last follow-up were also analyzed when available.RESULTS: Ninety patients with 98 WEB-treated aneurysms were included in this study. In 93 cases (95%), WEB placement was possible. Complete occlusion at the end of the procedure was obtained in 26 instances (26%). Additional treatment during the procedure (coiling and/or stent placement) was necessary in 12 cases (12.7%). Procedure-related complications occurred in 13 cases, leading to permanent neurologic deficits in 4 patients (4.4%). Early vascular imaging follow-up data were available for 44 patients (57%), with an average time interval of 3.3 months. Treatment-related morbidity and mortality rates at last follow-up were 2.2% and 1.1%, respectively.CONCLUSIONS: In this study, the feasibility and safety of the single-layer WEB device was comparable with that of the double-layer. However, further studies are needed to evaluate long-term efficacies.DLdual-layerWEBWoven EndoBridgeSLsingle-layerSLSsingle-layer sphere. ER -