For the endovascular treatment of aneurysms using coiling, various types of coils are available. Unlike standard uncoated coils, there are coil loops coated with a thin hydrogel layer. Current study data favor the use of second-generation hydrogel coils over standard uncoated coils1. The advantage of hydrogel coils lies in the accumulation of fluid within the coil, which can thereby increase in volume and is intended to provide better occlusion of the aneurysm.
References
Taschner CA, Chapot R, Costalat V, et al. Second-Generation Hydrogel Coils for the Endovascular Treatment of Intracranial Aneurysms. Stroke. March 2018:667-674. doi:10.1161/strokeaha.117.018707 ↩ ↩