The Angiographic and Clinical Follow-up Outcomes of the Wide-Necked and Complex Intracranial Aneurysms Treated With LVIS EVO–Assisted Coiling

Aydin K. Puthuran M. Onal Y. Barburoglu M. Chandran A. Berdikhojayev M. Gravino G. Senturk Y.E. Aygun S. Velioglu M. Sencer S.
1 April 2023 Wolters Kluwer Medknow Publications

Neurosurgery
2023 #92 Issue 4 827 - 836 pp.

BACKGROUND: The Low Profile Visible Intraluminal Support EVO (LVIS EVO) is a self-expandable braided stent, which was recently introduced for the treatment of intracranial aneurysms. Full visibility of the stent and a relatively high metal coverage ratio are the unique features of the LVIS EVO. OBJECTIVE: To assess the safety, efficacy, and midterm durability of LVIS EVO stent-assisted coiling for the treatment of wide-necked intracranial aneurysms. METHODS: The endovascular databases were reviewed to identify patients treated with LVIS EVO–assisted coiling. The technical success and immediate clinical/angiographic outcomes were assessed. Periprocedural and delayed complications were evaluated. The follow-up angiographic/clinical outcomes were investigated. The preprocedural/followup neurological statuses were assessed with the modified Rankin Scale. RESULTS: One hundred three aneurysms in 103 patients (63 females) with a mean age of 54.9 ± 11.3 years were included. The mean maximum sac diameter was 6.2 ± 2.9 mm. The procedural technical success rate was 100%. Immediate postprocedural angiography showed complete occlusion in 77.7%. The mean duration of the angiographic follow-up was 8.8 ± 3.6 months. Follow-up angiography showed complete aneurysm occlusion in 89% of the 82 patients with angiographic follow-up. Recanalization was observed in 7.3% of 82 patients. Two patients (2.4%) required retreatment. In addition, 8.7% of the patients had at least 1 complication, and 2.9% of the patients developed a permanent morbidity. All patients had mRS scores ≤2. CONCLUSION: The results of this study demonstrate that SAC with LVIS EVO is a relatively safe, efficient, and durable treatment for wide-necked and complex intracranial aneurysms.

Aneurysms , Follow-up , LVIS EVO , Stent-assisted coiling , Wide-necked

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Department of Interventional Radiology, Koc University Hospital, Topkapi, Istanbul, Turkey
Department of Neuroradiology, Istanbul University, Istanbul Faculty of Medicine, Capa, Istanbul, Turkey
The Walton Centre for Neurology and Neurosurgery, Liverpool, United Kingdom
Department of Interventional Radiology, Fatih Sultan Mehmet Training and Research Hospital, Turkey
Department of Neurosurgery, JSC Central Hospital, Almaty, Kazakhstan

Department of Interventional Radiology
Department of Neuroradiology
The Walton Centre for Neurology and Neurosurgery
Department of Interventional Radiology
Department of Neurosurgery

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