1. De Novo Dural Arteriovenous Fistula on Draining Veins of Previously Treated Pial Arteriovenous Malformation: a Case Report.
- Author
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Diana F, Tosatto L, Haznedari N, Commodaro C, and Ruggiero M
- Subjects
- Aged, Arteriovenous Fistula diagnostic imaging, Arteriovenous Fistula physiopathology, Arteriovenous Fistula surgery, Cerebral Arteries abnormalities, Cerebral Arteries diagnostic imaging, Cerebral Arteries physiopathology, Cerebral Veins abnormalities, Cerebral Veins diagnostic imaging, Cerebral Veins physiopathology, Humans, Intracranial Arteriovenous Malformations diagnostic imaging, Intracranial Arteriovenous Malformations physiopathology, Male, Treatment Outcome, Vascular System Injuries diagnostic imaging, Vascular System Injuries physiopathology, Vascular System Injuries surgery, Arteriovenous Fistula etiology, Cerebral Arteries surgery, Cerebral Veins surgery, Iatrogenic Disease, Intracranial Arteriovenous Malformations surgery, Neurosurgical Procedures adverse effects, Pia Mater blood supply, Vascular System Injuries etiology
- Abstract
A 71-year-old man, with a pial micro-arteriovenous malformation (pAVM) draining into the confluence of the vein of Trolard and the vein of Labbé was surgically removed, sparing these cortical veins. 4-months MR and angiographic controls showed a de novo dural arteriovenous fistula (dAVF) draining into the previously spared cortical veins. It was removed using intraoperative motor evoked potentials (MEP). This is the first case of iatrogenic dAVF developing on the same draining vein of a previously treated pAVM. De novo dAVFs are generally iatrogenic. This case suggests that the unresected venous drainage of an AVM might be the substratum for neo-angiogenetic processes; moreover inflammation related to surgery might be the trigger factor for the development of the dAVF., (Copyright © 2021 Elsevier Inc. All rights reserved.)
- Published
- 2021
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