Purpose: To identify factors influencing short- and mid-term radiological outcomes of intracranial aneurysms (IAs) treated with the Woven EndoBridge (WEB).
Methods: A total of 112 patients were treated for IAs with the WEB in at our institution between 2013 and 2020. Patients with 6- and/or 24-months follow-up data were included in the study. Aneurysm occlusion was evaluated using the Raymond-Roy occlusion classification (RR). RR 1 and RR 2 were considered as adequate outcomes, while RR 3 inadequate.
Results: Data were available for 91 patients (56 females, 62%) at 6 months and 62 of those patients (39 females, 58%) at 24 months. The adequate occlusion (RR 1/RR 2) rate was 89% ( = 81/91) at the 6-months follow-up and 91% ( = 56/62) at the 24-months follow-up. The treatment-related morbidity rate was 4% ( = 4/91), and mortality rate was 1% ( = 1/91). The predictor for inadequate occlusion at the 6-months follow-up was the lobular shape of an aneurysm ( = .01). The aneurysm's height ( = .02), maximal diameter ( = .001), width ( = .002), aspect ratio ( = .03), dome-to-neck ratio ( = .04), and lobular shape (= .03) were predictive factors for inadequate occlusion at 24 months. All the thrombosed aneurysms ( = 3) showed unfavorable radiological outcomes and required re-treatment within 24 months. None of the patient-related factors were significant.
Conclusions: The WEB provides favorable occlusion rates and low complications for both ruptured and unruptured wide-necked IAs. Unfavorable radiological outcomes after WEB treatment may be related to aneurysm morphology and size.
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| http://dx.doi.org/10.1177/19714009221122216 | DOI Listing |
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