title: Ocular thrombosis after stent-assisted coiling of a c7 (paraclinoid) internal carotid artery aneurysm. A report of two cases and literature review.
abstract: Stent-assisted coiling of paraclinoid aneurysms is widely performed in neurointerventional surgery. The most common adverse event related to this procedure is cerebral thromboembolism. However, reports on ocular thromboembolism are scarce. We report our experience with two patients who developed ocular thromboembolism following Enterprise stent-assisted coiling of paraclinoid aneurysms. We then review the available literature for the possible pathomechanism of ocular thrombosis. Ocular thromboembolism may be a risk of stent-assisted coiling when the stent traverses the orifice of the ophthalmic artery or the stent is placed in the C3 internal carotid artery. Further study is needed to clarify how to avoid this disabling complication.
authors.affiliation: Center for Endovascular Therapy, Division of Neuroendovascular Surgery, Jichi Medical University; Tochigi, Japan - knamba@jichi.ac.jp.
authors.forename: Katsunari
authors.initials: K
authors.lastname: Namba
authors.affiliation: Department of Neurosurgery, Jichi Medical University; Tochigi, Japan.
authors.forename: Ayuho
authors.initials: A
authors.lastname: Higaki
authors.affiliation: Department of Endovascular Surgery, Tokyo Medical and Dental University; Tokyo, Japan.
authors.forename: Shigeru
authors.initials: S
authors.lastname: Nemoto
mesh_terms: D000328:Adult; D002343:Carotid Artery, Internal / Q000000981:diagnostic imaging / Q000473:pathology*; D004621:Embolization, Therapeutic / Q000009:adverse effects*; D005260:Female; D005654:Fundus Oculi; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging / Q000473:pathology / Q000628:therapy*; D009880:Ophthalmic Artery / Q000000981:diagnostic imaging / Q000473:pathology*; D011859:Radiography; D015607:Stents / Q000009:adverse effects*; D013923:Thromboembolism / Q000000981:diagnostic imaging / Q000209:etiology* / Q000473:pathology
keywords: ocular thrombosis; stent apposition; stent-assisted coiling