Safety and Efficacy of Endovascular Coils and Non–Flow-Diverting Stents for Management of Unruptured Intracranial Aneurysms: A Location-Specific Outcomes Analysis

Abstract

IntroductionThe relationship between the anatomical location of an unruptured saccular aneurysm, the efficacy and the potential complications associated with coil and non-flow-diverting stents remains poorly documented. Therefore, the aim of this study is to evaluate the efficacy and safety of endovascular treatment based on the anatomical position of the unruptured intracranial aneurysm (UIA). MethodsA retrospective cohort study was conducted using an anonymized database of patients who underwent endovascular therapy for UIA between 2014 and 2021. Results138 patients with 147 UIA were included. The immediate Raymond Roy I-II occlusion was achieved in 99.2% of patients in all anatomical locations, with a 96.2% occlusion rate at the 12-month follow-up. Complications occurred more frequently in the anterior cerebral artery (35%) and the internal carotid artery in its ophthalmic segment (25%), however the difference was not statistically significant. ConclusionOur study shows that endovascular treatment with stents and coils is effective and safe for managing unruptured intracranial aneurysms in various anatomical locations. Thromboembolic complications were significantly higher in the anterior cerebral artery located aneurysms.