title: Rapid delayed growth of ruptured supraclinoid blister aneurysm after successful flow diverting stent treatment.
abstract: A 62-year-old woman presented with a subarachnoid hemorrhage secondary to a ruptured right supraclinoid internal carotid artery blister aneurysm. She was treated in an emergent fashion with two flow diverting pipeline embolization devices (PED) deployed in a telescoping fashion. CT angiography performed for unrelated reasons at 7 months showed successful treatment of the aneurysm without evidence of residual aneurysm. However, a follow-up digital subtraction angiogram performed at 9 months showed a large aneurysm in a modified position compared with the original aneurysm. This is the first case of rapid regrowth of a supraclinoid blister aneurysm after successful treatment with a PED, and demonstrates the need for close follow-up for similar aneurysms treated with this novel device.
authors.affiliation: Department of Clinical Neuroscience, University of Calgary, Calgary, Alberta, Canada.
authors.forename: Stefan Thomas
authors.initials: ST
authors.lastname: Lang
authors.affiliation: Department of Clinical Neuroscience, University of Calgary, Calgary, Alberta, Canada.
authors.forename: Zarina
authors.initials: Z
authors.lastname: Assis
authors.affiliation: Department of Clinical Neuroscience, University of Calgary, Calgary, Alberta, Canada.
authors.forename: John H
authors.initials: JH
authors.lastname: Wong
authors.affiliation: Department of Clinical Neuroscience, University of Calgary, Calgary, Alberta, Canada.
authors.forename: William
authors.initials: W
authors.lastname: Morrish
authors.affiliation: Department of Clinical Neuroscience, University of Calgary, Calgary, Alberta, Canada.
authors.forename: Alim P
authors.identifier: http://orcid.org/0000-0001-7157-5969
authors.initials: AP
authors.lastname: Mitha
mesh_terms: D017542:Aneurysm, Ruptured / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery*; D015901:Angiography, Digital Subtraction; D002343:Carotid Artery, Internal / Q000000981:diagnostic imaging / Q000601:surgery; D002533:Cerebral Angiography; D000072226:Computed Tomography Angiography; D004621:Embolization, Therapeutic; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery*; D008875:Middle Aged; D012008:Recurrence; D015607:Stents; D013345:Subarachnoid Hemorrhage / Q000150:complications / Q000000981:diagnostic imaging; D016896:Treatment Outcome
keywords: Aneurysm; Device; Flow Diverter; Subarachnoid