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Published in: Acta Neurochirurgica 6/2019

01-06-2019 | Ruptured Aneurysm | Original Article - Vascular Neurosurgery - Aneurysm

Association between extracranial internal carotid artery tortuosity and thromboembolic complications during coil embolization of anterior circulation ruptured aneurysms

Authors: Atsushi Ogata, Kenji Suzuyama, Ryo Ebashi, Yukinori Takase, Kohei Inoue, Jun Masuoka, Fumitaka Yoshioka, Yukiko Nakahara, Tatsuya Abe

Published in: Acta Neurochirurgica | Issue 6/2019

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Abstract

Background

The most frequent neurological complication during coil embolization of a ruptured cerebral aneurysm is a thromboembolic event. The association between the tortuosity of the internal carotid artery (ICA) and thromboembolic events (TEEs) during coil embolization of ruptured cerebral aneurysms remains unclear. The present study aimed to investigate the association between extracranial ICA tortuosity and thromboembolic complications during coil embolization of anterior circulation ruptured aneurysms.

Methods

A cohort of 57 patients with 57 anterior circulation ruptured aneurysms who underwent endovascular embolization at a single institution was retrospectively investigated. Patients were divided into two groups, those who experienced TEEs and those who did not that were compared and analyzed based on patient baseline characteristics, procedural factors, and anatomical factors including those of aneurysms and extracranial ICA tortuosity. The anatomical factors of the aneurysms included maximum dome size, neck width, dome-to-neck ratio, and dome-to-neck aspect ratio. Extracranial ICA angles in the proximal and distal curvature were evaluated as ICA tortuosity.

Results

Three of the 57 patients were excluded because of unavailability of data regarding ICA tortuosity; 54 patients were finally evaluated. TEEs occurred in six patients with five anterior cerebral and one internal carotid aneurysms. The extracranial distal ICA angle was significantly larger in patients with TEEs than in those without. Procedural factors and anatomical factors of the aneurysms were not associated with TEEs.

Conclusions

Extracranial ICA tortuosity was significantly associated with an increased incidence of thromboembolic events during endovascular coiling of anterior circulation ruptured aneurysms.
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Metadata
Title
Association between extracranial internal carotid artery tortuosity and thromboembolic complications during coil embolization of anterior circulation ruptured aneurysms
Authors
Atsushi Ogata
Kenji Suzuyama
Ryo Ebashi
Yukinori Takase
Kohei Inoue
Jun Masuoka
Fumitaka Yoshioka
Yukiko Nakahara
Tatsuya Abe
Publication date
01-06-2019
Publisher
Springer Vienna
Published in
Acta Neurochirurgica / Issue 6/2019
Print ISSN: 0001-6268
Electronic ISSN: 0942-0940
DOI
https://doi.org/10.1007/s00701-019-03903-7

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