Determinants of cerebral aneurysm occlusion after embolization with the WEB device: A single-institution series of 215 cases with angiographic follow-up - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Neurointerventional Surgery Année : 2023

Determinants of cerebral aneurysm occlusion after embolization with the WEB device: A single-institution series of 215 cases with angiographic follow-up

Jonathan Cortese
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Jildaz Caroff
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Vanessa Chalumeau
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Sophie Gallas
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Léon Ikka
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Jacques Moret
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Federico Sabuzi
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Septimiu Daniel Popescu
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Augustin P. Ozanne
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Cristian Mihalea
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Laurent Spelle
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Résumé

Background Woven EndoBridge (WEB) devices are becoming a reliable option for the treatment of wide-neck bifurcation aneurysms, but clear predictive factors are still missing to understand the one in five aneurysm remnant rate. Objective To evaluate occlusion outcomes after WEB treatment to identify potential determinants of aneurysm occlusion. Methods A single-center database with consecutive aneurysms treated with WEB between July 2012 and October 2021 was reviewed for potential determinants of aneurysm adequate occlusion (defined as a Bicêtre Occlusion Scale Score (BOSS) of 0, 0', 1 or 2), through univariate and multivariable analysis. Patients without angiographic follow-up were excluded. Results 215 of 247 individual aneurysms were included in the final analysis, of which 59 (27%) were ruptured. Mean age of patients was 56 years (range 23-90 years) and 65% were female. Mean angiographic follow-up was at 18 months (range 3-97 months). Adequate and complete occlusion were achieved in 171/215 (79.5%) and 135/215 (62.8%) of cases, respectively. Aneurysm irregular shape (aOR=0.42, 95% CI 0.20 to 0.88; p=0.02), aneurysm height (aOR=0.79, 95% CI 0.66 to 0.94; p<0.01), and WEB shape modification (aOR=0.98, 95% CI 0.97 to 1.00; p=0.02) were all independent predictors of aneurysm recurrence, whereas the WEB oversizing ratio (WEB width/aneurysm mean width) (aOR=16.4, 95% CI 1.4 to 266.7; p=0.04) was an independent predictor of adequate occlusion. Conclusion In this study we demonstrated that a width oversizing strategy of the WEB device was an independent predictor of aneurysm angiographic occlusion. Conversely, aneurysm height, irregular aneurysm, and WEB shape modification were all independent determinants of angiographic aneurysm remnant. These results may help to select aneurysms suitable for the WEB device and WEB sizing.
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Dates et versions

hal-04122298 , version 1 (08-06-2023)

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Jonathan Cortese, Jildaz Caroff, Vanessa Chalumeau, Sophie Gallas, Léon Ikka, et al.. Determinants of cerebral aneurysm occlusion after embolization with the WEB device: A single-institution series of 215 cases with angiographic follow-up. Journal of Neurointerventional Surgery, 2023, 15 (5), pp.446-451. ⟨10.1136/neurintsurg-2022-018780⟩. ⟨hal-04122298⟩
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