• Chinese Med J Peking · Jan 2013

    Spine surgery may cause more spinal epidural hematomas than spinal puncture.

    • Jian-Xiong An, Qi-Wu Fang, Erin A Sullivan, and John P Williams.
    • Department of Anesthesiology, University of Pittsburgh, Pittsburgh, PA 15213, USA. anjianxiong@yahoo.com
    • Chinese Med J Peking. 2013 Jan 1; 126 (2): 286-9.

    BackgroundSpinal epidural hematoma (SEH) is a rare but acute and possibly devastating clinical event. The purpose of this study is to assess the multiple etiologies of SEH seen in an academic medical center over a 15-year span. We have examined the etiologies of SEH occurring in a single institution, the University of Pittsburgh Medical Center (UPMC) over the last fifteen years using an electronic record keeping system and database: the Medical Archive Retrieval System (MARS).MethodsWe screened MARS from 1986 - 2001 using key words: epidural, hematoma and spinal. All potential SEH cases were reviewed and only those confirmed by surgical intervention were identified as positive SEH and reported in this study.ResultsThere were 17 cases of confirmed SEH. Among them, seven cases were from spontaneous bleeding, seven cases following spinal surgery, and three cases from traumatic spinal fracture. There were no findings of SEH that were related to spinal or epidural anesthesia. Among the seven patients with spontaneous SEH; two were receiving anti-coagulants for deep venous thrombosis (DVT) and had elevated prothrombin time (PT) and activated partial thromboplastine time (APTT), one had hemophilia (type B), four had hypertension, and three out of seven had chronic renal or liver disease. Among postoperative SEH patients, two of the seven patients were receiving chemotherapy and radiation therapy and one had ongoing hemodialysis for renal failure. Among three patients with traumatic SEH, two had ankylosing spondylitis. Six patients had a history of alcohol abuse.ConclusionsSpontaneous bleeding is by far the leading cause of SEH with spinal surgery being the second leading cause. Patients with multiple co-morbidities that result in coagulopathy from a variety of causes include liver or renal disease, alcohol abuse, radiation therapy, or chemotherapy. Neuraxial anesthesia is an extremely rare cause of SEH.

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