Lorenzo Piergallini1, Cyril Dargazanli2, Imad Derraz2, Vincent Costalat2. 1. Postgraduation School of Radiodiagnostics, University of Milan, Milan, Italy; Department of Diagnostic and Interventional Neuroradiology, University Hospital Gui-de-Chauliac, CHU de Montpellier, Montpellier, France. Electronic address: lorenzo.piergallini@gmail.com. 2. Department of Diagnostic and Interventional Neuroradiology, University Hospital Gui-de-Chauliac, CHU de Montpellier, Montpellier, France.
Abstract
BACKGROUND: Cerebral dural arteriovenous fistulas (DAVFs) are vascular lesions consisting of a pathologic high-flow connection between dural arteries and veins or dural sinuses. Small DAVFs shunts have been demonstrated to exist physiologically, but as their estimated diameter is around 8-12 μm, they are not visible even on high-quality angiography studies. CASE DESCRIPTION: We report 2 cases of immediate development of a DAVF after embolization with microparticles of the middle meningeal artery for treatment of chronic subdural hematoma. CONCLUSIONS: This report represents the first description of sudden development of a DAVF after endovascular embolization of an intracranial artery and may shed light on the pathophysiology and development of DAVFs.
BACKGROUND:Cerebral dural arteriovenous fistulas (DAVFs) are vascular lesions consisting of a pathologic high-flow connection between dural arteries and veins or dural sinuses. Small DAVFs shunts have been demonstrated to exist physiologically, but as their estimated diameter is around 8-12 μm, they are not visible even on high-quality angiography studies. CASE DESCRIPTION: We report 2 cases of immediate development of a DAVF after embolization with microparticles of the middle meningeal artery for treatment of chronic subdural hematoma. CONCLUSIONS: This report represents the first description of sudden development of a DAVF after endovascular embolization of an intracranial artery and may shed light on the pathophysiology and development of DAVFs.
Authors: Andrea Di Cristofori; Paolo Remida; Mirko Patassini; Lorenzo Piergallini; Raffaella Buonanno; Raffaele Bruno; Giorgio Carrabba; Giacomo Pavesi; Corrado Iaccarino; Carlo Giorgio Giussani Journal: Surg Neurol Int Date: 2022-03-18