Dual Layer vs Single Layer Woven EndoBridge Device in the Treatment of Intracranial Aneurysms: A Propensity Score-Matched Analysis

Adam A. Dmytriw, Hamza Salim, Basel Musmar, Assala Aslan, Nicole M. Cancelliere, Rachel M. McLellan, Oktay Algin, Sherief Ghozy, Mahmoud Dibas, Sovann V. Lay, Adrien Guenego, Leonardo Renieri, Joseph Carnevale, Guillaume Saliou, Panagiotis Mastorakos, Kareem El Naamani, Eimad Shotar, Kevin Premat, Markus Möhlenbruch, Michael KralOmer Doron, Charlotte Chung, Mohamed M. Salem, Ivan Lylyk, Paul M. Foreman, Jay A. Vachhani, Hamza Shaikh, Vedran Župančić, Muhammad U. Hafeez, Joshua Catapano, Muhammad Waqas, Vincent M. Tutino, Mohamed K. Ibrahim, Marwa A. Mohammed, Cetin Imamoglu, Ahmet Bayrak, James D. Rabinov, Yifan Ren, Clemens M. Schirmer, Mariangela Piano, Anna L. Kühn, Caterina Michelozzi, Stéphanie Elens, Robert M. Starke, Ameer E. Hassan, Mark Ogilvie, Peter Sporns, Jesse Jones, Waleed Brinjikji, Marie T. Nawka, Marios Psychogios, Christian Ulfert, Jose Danilo Bengzon Diestro, Bryan Pukenas, Jan Karl Burkhardt, Thien Huynh, Juan Carlos Martinez-Gutierrez, Muhammed Amir Essibayi, Sunil A. Sheth, Gary Spiegel, Rabih Tawk, Boris Lubicz, Pietro Panni, Ajit S. Puri, Guglielmo Pero, Erez Nossek, Eytan Raz, Monika Killer-Oberfalzer, Christoph J. Griessenauer, Hamed Asadi, Adnan Siddiqui, Allan L. Brook, David Altschul, Andrew F. Ducruet, Felipe C. Albuquerque, Robert W. Regenhardt, Christopher J. Stapleton, Peter Kan, Vladimir Kalousek, Pedro Lylyk, Srikanth Boddu, Jared Knopman, Mohammad A. Aziz-Sultan, Stavropoula I. Tjoumakaris, Frédéric Clarençon, Nicola Limbucci, Hugo H. Cuellar-Saenz, Pascal M. Jabbour, Vitor Mendes Pereira, Aman B. Patel, Nimer Adeeb

Research output: Contribution to journalArticlepeer-review


Background: The Woven EndoBridge (WEB) devices have been used for treating wide neck bifurcation aneurysms (WNBAs) with several generational enhancements to improve clinical outcomes. The original device dual-layer (WEB DL) was replaced by a single-layer (WEB SL) device in 2013. This study aimed to compare the effectiveness and safety of these devices in managing intracranial aneurysms. Methods: A multicenter cohort study was conducted, and data from 1,289 patients with intracranial aneurysms treated with either the WEB SL or WEB DL devices were retrospectively analyzed. Propensity score matching was utilized to balance the baseline characteristics between the two groups. Outcomes assessed included immediate occlusion rate, complete occlusion at last follow-up, retreatment rate, device compaction, and aneurysmal rupture. Results: Before propensity score matching, patients treated with the WEB SL had a significantly higher rate of complete occlusion at the last follow-up and a lower rate of retreatment. After matching, there was no significant difference in immediate occlusion rate, retreatment rate, or device compaction between the WEB SL and DL groups. However, the SL group maintained a higher rate of complete occlusion at the final follow-up. Regression analysis showed that SL was associated with higher rates of complete occlusion (OR: 0.19; CI: 0.04 to 0.8, p = 0.029) and lower rates of retreatment (OR: 0.12; CI: 0 to 4.12, p = 0.23). Conclusion: The WEB SL and DL devices demonstrated similar performances in immediate occlusion rates and retreatment requirements for intracranial aneurysms. The SL device showed a higher rate of complete occlusion at the final follow-up.

Original languageEnglish (US)
Article number116
JournalNeurosurgical Review
Issue number1
StatePublished - Dec 2024
Externally publishedYes


  • Aneurysms
  • Intracranial
  • WEB
  • Woven EndoBridge, treatment

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology


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