• World Neurosurg · Jul 2023

    Clinical and radiological outcomes of vertebral artery dissecting aneurysms treated with endovascular treatments: a 12-year single-center experience.

    • Woo Cheul Cho, Hyeong Jin Lee, Jai Ho Choi, Kwan Sung Lee, Bum-Soo Kim, and Yong Sam Shin.
    • Department of Neurosurgery and Department of Radiology, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, South Korea.
    • World Neurosurg. 2023 Jul 1; 175: e904e913e904-e913.

    ObjectiveWe aimed to compare the clinical and radiological outcomes of vertebral artery dissecting aneurysms (VADAs) stratified using different endovascular treatment methods.MethodsWe retrospectively reviewed 116 patients with VADAs treated at a single tertiary institute between September 2008 and December 2020. We analyzed and compared the clinical and radiological parameters according to different treatment methods.ResultsIn total, 127 endovascular procedures were performed in 116 patients. We initially treated 46 patients with parent artery occlusion, 9 with coil embolization without stent, 43 with single stent with or without coil, 16 with multiple stents with or without coils, and 13 with flow-diverting stent. At the last follow-up (mean 37.8 ± 30.9 months), the complete occlusion rate (85.7%) was higher in the multiple-stent group than in the groups that received other reconstructive treatment methods. Moreover, the recurrence (0%) and retreatment (0%) rates were significantly lower in the multiple stent group (P < 0.001). The coil embolization-only group showed the highest recurrence (n = 5, 62.5%) and incomplete occlusion (n = 1, 12.5%) rates. The single-stent group showed higher recurrence (n = 9, 22.5%) and retreatment (n = 3, 7%) rates. Multivariate logistic regression analyses showed that coil embolization without stent placement (odds ratio = 172.76, 95% confidence interval = 6.83-4366.85; P = 0.002) was significantly associated with recurrence. At the last follow-up (mean, 42.1 ± 37.7 months), we achieved favorable clinical outcomes (modified Rankin Scale ≤2) in 106 of 127 patients.ConclusionWhen treating VADAs, multiple stent placements may play a key role in achieving favorable long-term radiological outcomes.Copyright © 2023 Elsevier Inc. All rights reserved.

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