Balloon assisted Woven endobridge deployment (BAWD): A safety and efficacy study

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BackgroundBalloon-assisted deployment/remodelling is a proven adjunctive technique for coil embolization of intracranial aneurysms, and it may be a helpful adjunct in delivering the Woven EndoBridge (WEB) device.ObjectiveTo evaluate the safety, efficacy and feasibility of balloon-assisted WEB deployment in both ruptured and unruptured intracranial aneurysms in both typical and atypical locations.MethodsPatients who underwent treatment of ruptured and unruptured intracranial aneurysms with the BAWD technique were retrospectively identified from a prospectively maintained database at two neurointerventional centres. Patient demographics, aneurysm characteristics, technical procedure details, clinical and imaging outcomes were reviewed.ResultsThirty-three aneurysms (23 women) were identified with a median age of 58 years. There were 15 (45.5%) ruptured aneurysms, 25 (64.3%) in the anterior circulation and 12 (36.4%) aneurysms having an atypical location for WEB treatment. The average aneurysm size was 6.8 mm (greatest dimension), 4.6 mm (height) and 4.5 mm (width), and 25 (75.8%) aneurysms had a wide neck morphology. One patient died (3.0%) secondary to a procedure-related complication, and there was no procedure-related permanent morbidity. Complete and adequate aneurysm occlusion on mid-term follow-up DSA was 85.2% and 92%, respectively.ConclusionBalloon-assisted WEB deployment appears to be a safe and effective technique that may increase the utility of the WEB device. Further prospective studies on BAWD should be considered.

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