title: Disappearance of a Ruptured Distal Flow-Related Aneurysm after Arteriovenous Malformation Nidal Embolization.
abstract: Aneurysms associated with arteriovenous malformations (AVMs) are well represented in the literature. Their exact etiology is poorly understood, but likely global hemodynamic changes coupled with vascular wall pathology play into their formation. Flow-related and intranidal aneurysms, in particular, appear to have an increased risk for hemorrhagic presentation. Treatment strategies for these aneurysms are particularly challenging. We report the case of an AVM-associated aneurysm causing intraventricular hemorrhage that disappeared after embolization of unrelated, distal feeding pedicles to the nidus, at a site distant from the aneurysm. We also review the literature with regards to these so-called "disappearing aneurysms" in the context of AVMs and other vascular pathologies.
authors.affiliation: Department of Neurosurgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
authors.forename: Lucy
authors.initials: L
authors.lastname: He
authors.affiliation: Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, Gansu, China.
authors.forename: Junwei
authors.initials: J
authors.lastname: Gao
authors.affiliation: Neurosurgery Service, Brain Aneurysm Institute, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA.
authors.forename: Ajith J
authors.initials: AJ
authors.lastname: Thomas
authors.affiliation: Neurosurgery Service, Brain Aneurysm Institute, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA.
authors.forename: Matthew R
authors.initials: MR
authors.lastname: Fusco
authors.affiliation: Neurosurgery Service, Brain Aneurysm Institute, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA. Electronic address: cogilvy@bidmc.harvard.edu.
authors.forename: Christopher S
authors.initials: CS
authors.lastname: Ogilvy
mesh_terms: D017542:Aneurysm, Ruptured / Q000628:therapy; D015901:Angiography, Digital Subtraction; D002533:Cerebral Angiography; D004621:Embolization, Therapeutic / Q000379:methods*; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000628:therapy*; D002538:Intracranial Arteriovenous Malformations / Q000601:surgery / Q000628:therapy*; D008875:Middle Aged; D012075:Remission, Spontaneous
keywords: Arteriovenous malformation; Endovascular treatment; Flow-related aneurysm; Intraventricular hemorrhage