Source:Clinical Neurology and Neurosurgery
Author(s): Adeel Ilyas, Thomas J. Buell, Ching-Jen Chen, Dale Ding, Daniel Raper, Davis G. Taylor, Jennifer D. Sokolowski, Kenneth C. Liu
ObjectivesEndovascular technology for the treatment of intracranial aneurysms continues to rapidly evolve. The SMART coil (Penumbra Inc., Alameda, CA, USA) is a novel microcoil designed to enhance deliverability. The aim of this single-center, retrospective cohort study is to assess the initial outcomes after aneurysm embolization using SMART coils.Patients and methodsWe reviewed consecutive patients with intracranial aneurysms who underwent endovascular embolization using SMART coils from June 2016 to January 2017. Baseline and initial outcomes data were analyzed.ResultsThe study cohort was comprised of 32 patients with 33 aneurysms. The mean age was 55.8 years. The majority (85%) of aneurysms were located in the anterior circulation. The mean aneurysm maximum diameter and neck width were 6.0mm and 3.1mm, respectively. Dome irregularity and fusiform aneurysm morphology were noted in 33% and 9% of aneurysms, respectively, and 15% presented with subarachnoid hemorrhage. No serious procedural complications occurred, including microcatheter prolapse, intraprocedural aneurysm rupture, or thromboembolism. Device malfunction occurred in one case (3%). The mean packing density was 25%, and the degree of immediate post-embolization aneurysm occlusion was a modified Raymond-Roy grade I, II, IIIa, and IIIb in 48%, 27%, 18%, and 6%, respectively.ConclusionOur preliminary findings suggest that the SMART coil has a favorable initial risk to benefit profile for the embolization of appropriately selected aneurysms. Additional studies of larger cohorts are necessary to determine the mid-term and long-term clinical and angiographic outcomes of aneurysm patients treated with the SMART coil.
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