Spinal epidural arteriovenous fistulas

Journal of Neurointerventional Surgery
Waleed BrinjikjiGiuseppe Lanzino

Abstract

Spinal epidural arteriovenous fistulas (SEDAVFs) are rare complex lesions often presenting with protean clinical manifestations secondary to compressive symptoms or congestive myelopathy. The imaging manifestations of SEDAVFs on MR angiography/MRI include high T2 signal in the spinal cord, vascular engorgement of the epidural space, and prominent intradural vascular flow voids. Given the complexity of these lesions, they are best characterized anatomically on catheter angiography where careful inspection of arterial feeders and venous drainage patterns can be performed. The imaging hallmark of an SEDAVF on angiography is the presence of a dilated epidural venous pouch through which spinal and paraspinal veins are secondarily opacified. In the lower thoracic and lumbar spine, SEDAVFs are usually located in the ventral epidural space and fed mainly by the anteriorly coursing epidural arteries. In the cervical and upper thoracic spine, SEDAVFs and their feeding arteries are more typically located laterally in the spinal canal. Current treatment options include transarterial or transvenous endovascular embolization with liquid embolic agents or coils, and surgical resection/disconnection of the fistula. Further research is needed t...Continue Reading

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Citations

Nov 9, 2017·Stroke; a Journal of Cerebral Circulation·Hiro KiyosueUNKNOWN JSNET Spinal AV Shunts Study Group
Sep 25, 2020·Journal of Cerebrovascular and Endovascular Neurosurgery·Jung-Sik ParkChang-Young Lee
Mar 15, 2018·Operative Neurosurgery·Thomas J SorensonGiuseppe Lanzino
Dec 14, 2018·AJNR. American Journal of Neuroradiology·Y SongD C Suh
Feb 12, 2017·Journal of Neurosurgery. Spine·Deena M NasrGiuseppe Lanzino
Sep 19, 2019·Journal of Neuroimaging : Official Journal of the American Society of Neuroimaging·Colbey W FreemanSeyed Ali Nabavizadeh
Oct 24, 2020·Interventional Neuroradiology : Journal of Peritherapeutic Neuroradiology, Surgical Procedures and Related Neurosciences·Bikei RyuYasunari Niimi
Feb 2, 2021·Continuum : Lifelong Learning in Neurology·Nicholas L Zalewski
Apr 25, 2021·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Jang Hun KimByung-Kyu Cho
May 20, 2021·Seminars in Neurology·Stephen W English, Nicholas L Zalewski
Jul 27, 2021·European Journal of Radiology Open·Valerio Da RosFrancesca Di Giuliano
Aug 21, 2021·Stroke; a Journal of Cerebral Circulation·Yueshan FengHongqi Zhang
Aug 25, 2021·Neurointervention·Abdulrahman Hamad Al-AbdulwahhabDae Chul Suh
Jan 18, 2020·Journal of Neurosurgery. Spine·Waleed BrinjikjiGiuseppe Lanzino

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