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Updated: Jul 20, 2026

Microsurgical Creation of Giant Bifurcation Aneurysms in Rabbits for the Evaluation of Endovascular Devices
Published on: September 8, 2023
Follow-up of treated aneurysms: the challenge of recurrences and potential solutions
Jean Raymond1, François Guilbert, Alain Weill
1Department of Radiology, Radio-Oncology and Nuclear Medicine, Faculty of Medicine, Université de Montréal, Pavilion Roger-Gaudry, 2900 Boulevard Edouard-Montpetit, Montreal, Quebec, Canada H3T 1J4. dr_jean_raymond@hotmail.com
Abstract:
Angiographic recurrences after endovascular treatment of aneurysms with platinum coils are frequent, but hemorrhages are unusual. Recurrences are more frequent in patients with large wide-necked aneurysms, when the initial occlusion is incomplete, and when patients are treated after subarachnoid hemorrhage. Although many occur early on, they can appear years after treatment. None of the recent devices has been proven effective in improving long-term results. A rigorous scientific approach, including randomized trials, is imperative to forward progress in this field.
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