Hetts S W, Narvid J, Singh T, Meagher S, Corcoran K, Higashida R T, Dowd C F, Halbach V V
Department of Radiology, the Neurovascular Medical Group, UCSF Medical Center, San Francisco, CA, USA.
AJNR Am J Neuroradiol. 2007 Mar;28(3):581-3.
We report 3 patients with previously undiagnosed spinal dural arteriovenous fistulas (SDAVFs), who developed acute paraparesis following lumbar epidural steroid injection. MR imaging demonstrated spinal cord T2 hyperintensity, edema and/or enhancement of the conus, and intradural enlarged vascular flow voids. Spinal angiography confirmed SDAVFs arising from pedicles remote from the sites of the epidural steroid injection. Fistulas were eliminated with either endovascular or combination endovascular and open surgical approaches, with subsequent partial resolution of paraparesis.
我们报告了3例先前未被诊断出的脊髓硬脊膜动静脉瘘(SDAVF)患者,他们在接受腰椎硬膜外类固醇注射后出现急性下肢轻瘫。磁共振成像显示脊髓T2高信号、水肿和/或圆锥增强,以及硬膜内扩大的血管流空信号。脊髓血管造影证实SDAVF起源于远离硬膜外类固醇注射部位的椎弓根。通过血管内或血管内与开放手术相结合的方法消除了瘘管,随后下肢轻瘫部分缓解。