Single-Layer WEBs: Intrasaccular Flow Disrupters for Aneurysm Treatment—Feasibility Results from a European Study

Abstract

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.

Occlusion assessment of intracranial aneurysms treated with the WEB device

“…This appears to be an important difference between the scales, which should be considered not least because instances of WEB devices remaining filled with contrast media on follow-up evaluation are far from rare. In a previously published WEB study [15], short-term imaging follow-up at an average of 3.3 months was available in 70 % of cases. At these early evaluation stages, BOSS 1 or BOSS 1 + 3 was found in 15 % of cases.…”

“…With such aneurysms that are typically challenging to treat with standard coiling, the WEB has proven to be a highly feasible and safe technique [2][3][4][5].…”

Flow-Diverter Stents for the Treatment of Saccular Middle Cerebral Artery Bifurcation Aneurysms

“…The WEB device is intended for the treatment of the same population as seen in our study. Some midterm follow-up studies have been published 17,31,32 and show good safety with morbidity rates of between 1.3% and 3.1%, with no mortality reported. Midterm anatomic results 17,31,33 have shown complete occlusion in 26.7%-56.9% of aneurysms.…”

Endovascular Treatment with the pCONus Device: Initial Experience in a Single UK Centre

“…X, Y, T, and linear stenting involve a complex delivery technique as they all require the use of more than one stent [11,15,16]. More recent advances include the use of a Woven EndoBridge (WEB) device which is a braided nitinol mesh that functions as an intrasaccular flow disruptor [17][18][19][20]. One of our patients with an AComA aneurysm treated with pCONus had a recurrence following utilisation of the WEB device previously.…”