Smaller WEB devices show lower retreatment rates than larger devices: results from the WorldWideWEB study - Takeaways - MDSpire
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Reduced retreatment rates observed with smaller WEB devices compared to larger counterparts: findings from the WorldWideWEB study

  • By

  • Franja Dugar

  • Hamza Adel Salim

  • Basel Musmar

  • Nimer Adeeb

  • Mahmoud Dibas

  • Davide Simonato

  • Yan-Lin Li

  • Muhammed Amir Essibayi

  • Oktay Algin

  • Sherief Ghozy

  • Sovann V. Lay

  • Adrien Guenego

  • Leonardo Renieri

  • Joseph Carnevale

  • Guillaume Saliou

  • Panagiotis Mastorakos

  • Eimad Shotar

  • Markus Möhlenbruch

  • Michael Kral

  • Charlotte Chung

  • Mohamed M. Salem

  • Ivan Lylyk

  • Paul M. Foreman

  • Hamza Shaikh

  • Vedran Župančić

  • Muhammad U. Hafeez

  • Joshua Catapano

  • Muhammad Waqas

  • Ahmet Gurhan Gurcay

  • Giyas Ayberk

  • Muhammet Arslan

  • James D. Rabinov

  • Onur Ergun

  • Julian Maingard

  • Clemens M. Schirmer

  • Mariangela Piano

  • Anna L. Kühn

  • Caterina Michelozzi

  • Robert M. Starke

  • Ameer Hassan

  • Mark Ogilvie

  • Jesse Jones

  • Waleed Brinjikji

  • Marios Psychogios

  • Marie T. Nawka

  • Jens Fiehler

  • Thi Dan Linh Nguyen-Kim

  • Bryan Pukenas

  • Jan-Karl Burkhardt

  • Thien Huynh

  • Juan Carlos Martinez-Gutierrez

  • Sunil A. Sheth

  • Diana Slawski

  • Rabih G. Tawk

  • Benjamin Pulli

  • Boris Lubicz

  • Pietro Panni

  • Ajit S. Puri

  • Guglielmo Pero

  • Eytan Raz

  • Christoph J. Griessenauer

  • Hamed Asadi

  • Adnan Siddiqui

  • Elad I. Levy

  • Neil Haranhalli

  • David Altschul

  • Andrew F. Ducruet

  • Robert W. Regenhardt

  • Christopher J. Stapleton

  • Peter Kan

  • Vladimir Kalousek

  • Pedro Lylyk

  • Srikanth Boddu

  • Jared Knopman

  • Stavropoula I. Tjoumakaris

  • Hugo H. Cuellar-Saenz

  • Pascal M. Jabbour

  • Frédéric Clarençon

  • Nicola Limbucci

  • Maurizio Fuschi

  • Aman B. Patel

  • Mohammad Almohammad

  • Andre Kemmling

  • Adam A. Dmytriw

  • Peter B. Sporns

  • September 8, 2026

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  • 1

    The WorldWideWEB study compared the safety and efficacy of small (≤ 4.5 mm) versus large (> 4.5 mm) WEB devices for treating intracranial aneurysms.

  • 2

    The study included data from 30 academic institutions across Europe, North and South America, and Australia, focusing on adults with intracranial aneurysms.

  • 3

    Safety endpoints included rates of periprocedural intracranial hemorrhage and thromboembolic complications, while efficacy outcomes involved aneurysm occlusion rates.

  • 4

    Patients were categorized based on WEB device size, and subgroup analyses evaluated outcomes based on aneurysm location and operator experience.

  • 5

    The study aimed to address the limited comparative evidence regarding the safety and efficacy of smaller WEB devices in treating intracranial aneurysms.

Original Source(s)

Smaller WEB devices show lower retreatment rates than larger devices: results from the WorldWideWEB study

  • by Franja Dugar, Hamza Adel Salim, Basel Musmar, Nimer Adeeb, Mahmoud Dibas, Davide Simonato, Yan-Lin Li, Muhammed Amir Essibayi, Oktay Algin, Sherief Ghozy, Sovann V. Lay, Adrien Guenego, Leonardo Renieri, Joseph Carnevale, Guillaume Saliou, Panagiotis Mastorakos, Eimad Shotar, Markus Möhlenbruch, Michael Kral, Charlotte Chung, Mohamed M. Salem, Ivan Lylyk, Paul M. Foreman, Hamza Shaikh, Vedran Župančić, Muhammad U. Hafeez, Joshua Catapano, Muhammad Waqas, Ahmet Gurhan Gurcay, Giyas Ayberk, Muhammet Arslan, James D. Rabinov, Onur Ergun, Julian Maingard, Clemens M. Schirmer, Mariangela Piano, Anna L. Kühn, Caterina Michelozzi, Robert M. Starke, Ameer Hassan, Mark Ogilvie, Jesse Jones, Waleed Brinjikji, Marios Psychogios, Marie T. Nawka, Jens Fiehler, Thi Dan Linh Nguyen-Kim, Bryan Pukenas, Jan-Karl Burkhardt, Thien Huynh, Juan Carlos Martinez-Gutierrez, Sunil A. Sheth, Diana Slawski, Rabih G. Tawk, Benjamin Pulli, Boris Lubicz, Pietro Panni, Ajit S. Puri, Guglielmo Pero, Eytan Raz, Christoph J. Griessenauer, Hamed Asadi, Adnan Siddiqui, Elad I. Levy, Neil Haranhalli, David Altschul, Andrew F. Ducruet, Robert W. Regenhardt, Christopher J. Stapleton, Peter Kan, Vladimir Kalousek, Pedro Lylyk, Srikanth Boddu, Jared Knopman, Stavropoula I. Tjoumakaris, Hugo H. Cuellar-Saenz, Pascal M. Jabbour, Frédéric Clarençon, Nicola Limbucci, Maurizio Fuschi, Aman B. Patel, Mohammad Almohammad, Andre Kemmling, Adam A. Dmytriw, Peter B. Sporns

  • September 8, 2026

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