• Journal of neurosurgery · Dec 2022

    Woven EndoBridge versus stent-assisted coil embolization of cerebral bifurcation aneurysms.

    • NaamaniKareem ElKE1Department of Neurological Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania; and., Ching-Jen Chen, Rawad Abbas, Ahmad Sweid, Georgios S Sioutas, Khodr Badih, Sunidhi Ramesh, Stavropoula I Tjoumakaris, M Reid Gooch, Nabeel A Herial, Hekmat Zarzour, Richard F Schmidt, Robert H Rosenwasser, and Pascal M Jabbour.
    • 1Department of Neurological Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania; and.
    • J. Neurosurg. 2022 Dec 1; 137 (6): 178617931786-1793.

    ObjectiveStent-assisted coil (SAC) embolization has been the mainstay endovascular treatment for bifurcation aneurysms. The recent introduction of the Woven EndoBridge (WEB) device has presented an alternative endovascular treatment modality for these aneurysms. Direct comparisons of outcomes between these two modalities are limited in the literature. Here, the authors compared the outcomes of bifurcation aneurysms treated with SAC and WEB devices.MethodsThis retrospective single-center study comprised 148 bifurcation aneurysms that were treated endovascularly with SAC or WEB devices between 2011 and 2019. The primary outcome was complete occlusion of the aneurysm at 6 months on catheter angiography.ResultsThe SAC and WEB cohorts comprised 85 and 63 aneurysms, respectively. The baseline characteristics were well balanced after inverse probability weight (IPW) adjustment, except for smoking status. The 6-month complete occlusion rate was higher in the WEB cohort than the SAC cohort (67.4% vs 40.6%; unadjusted OR [95% CI] 3.014 [1.385-6.563], p = 0.005). However, this difference in complete occlusion rates did not remain significant after IPW adjustment and multiple imputations. The neck remnant rate was lower in the WEB cohort than the SAC cohort (20% vs 50%; OR [95% CI] 0.250 [0.107-0.584], p = 0.001), and this difference remained significant after IPW adjustment (OR [95% CI] 0.304 [0.116-0.795], p = 0.015) and multiple imputations.ConclusionsUse of SAC and WEB demonstrated comparable 6-month complete occlusion rates for bifurcation aneurysms. WEB appeared to be associated with a lower rate of neck remnant at 6 and 12 months compared with SAC. WEB was also associated with fewer complications and decreased retreatment rates compared with SAC.

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