title: Delayed asymptomatic coil migrations toward different arteries after aneurysmal embolization: case report.
abstract: Delayed coil migration after endovascular treatment with detachable coils, particularly several months after treatment, is extremely rare. In this report, the authors describe a 77-year-old female in whom delayed coil migration to the anterior cerebral artery and posterior communicating artery (PCoA) developed 3 months after an uncomplicated aneurysm embolization. The patient was successfully retreated with a closed-cell stent. Computational fluid dynamics (CFD) revealed high wall shear stress (WSS) and multiple vortices in the residual cavity of the initially treated aneurysm. CFD could be useful to detect and predict this complication, and a stent-assisted technique could be an important treatment option.
authors.affiliation: Department of Neurosurgery, Graduate School of Medical Sciences, Kanazawa University, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan. kamide@med.kanazawa-u.ac.jp.
authors.forename: Tomoya
authors.identifier: 0000-0003-0051-6616
authors.initials: T
authors.lastname: Kamide
authors.affiliation: Department of Neurosurgery, Graduate School of Medical Sciences, Kanazawa University, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan.
authors.forename: Kouichi
authors.initials: K
authors.lastname: Misaki
authors.affiliation: Department of Neurosurgery, Graduate School of Medical Sciences, Kanazawa University, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan.
authors.forename: Iku
authors.initials: I
authors.lastname: Nambu
authors.affiliation: Department of Neurosurgery, Graduate School of Medical Sciences, Kanazawa University, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan.
authors.forename: Masanao
authors.initials: M
authors.lastname: Mohri
authors.affiliation: Department of Neurosurgery, Graduate School of Medical Sciences, Kanazawa University, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan.
authors.forename: Naoyuki
authors.initials: N
authors.lastname: Uchiyama
authors.affiliation: Department of Neurosurgery, Graduate School of Medical Sciences, Kanazawa University, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan.
authors.forename: Mitsutoshi
authors.initials: M
authors.lastname: Nakada
mesh_terms: D000368:Aged; D020771:Anterior Cerebral Artery / Q000000981:diagnostic imaging; D004621:Embolization, Therapeutic / Q000009:adverse effects*; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging / Q000628:therapy*; D011475:Prosthesis Failure; D019233:Retreatment; D015607:Stents / Q000009:adverse effects*
keywords: Computational fluid dynamics; Delayed coil migration; Stent-assist