Journal of Cerebrovascular Disease 2021 Vol.4 No.4 11-14

LEO Stent Semi-release Combined with Coil Embolization for the Treatment of Vertebral Artery V4 Segment Tandem Aneurysm: A Case Report

Author(s): Chen-Jie Gu1,Tian-Xiang Zhan2,Jian-Wei Pan2

Affiliation(s): 1Department of Neurosurgery, International Institute of Medicine, The Fourth Affiliated Hospital, Zhejiang University, School of Medicine
2Department of Neurosurgery, The First Affiliated Hospital, Zhejiang University, School of Medicine

Corresponding Author: Jian-Wei Pan

Corresponding email(s):

Key Words: Endovascular treatment; Tandem aneurysms; LEO stent; Internal carotid artery


Multiple intracranial aneurysms account for 14%-35% of all intracranial aneurysms. Their incidence rate is significantly increased in women, patients with connective tissue disease, and patients with a family history of subarachnoid hemorrhage. Among them, tandem aneurysms are located on the same parent artery and in close proximity to each other. The LEO stent is a self-expanding nickel-titanium braided stent for intracranial vascularization, which is a delivery system that is easy to navigate and position precisely. This case report describes a 68-year-old female patient who was presented with the chief complaints of dizziness for more than a month upon admission to the First Affiliated Hospital, Zhejiang University, School of Medicine. The cerebral angiography established right vertebral artery occlusion, V4 segment of left vertebral artery dissection with two tandem aneurysms, and bilateral internal carotid artery cavernous sinus segment dissection aneurysm. Therefore, we opted to use the LEO stent semi-release assisted coil embolization to treat the vertebral artery V4 segment tandem aneurysms. Some problems encountered during the operation were also considered and discussed.

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On-line Access: 2021-12-01

Received: 2021-09-10

Revision Accepted: 2021-11-15

Publish: 2021-12-01

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