title: Acute intracranial subdural hematoma following a lumbar CSF leak caused by spine surgery.
abstract: METHODS
  Case report.
  
  
  OBJECTIVE
  To report a case of an acute intracranial subdural hematoma that formed due to cerebrospinal fluid (CSF) leak following lumbar surgery.
  
  
  BACKGROUND
  Intracranial hypotension may occur when CSF is removed from the subarachnoid space. Intracranial subdural hematoma formation has been observed following significant CSF drainage during lumbar puncture or ventricular shunt placement. However, formation has been described only twice in the literature following spine surgery.
  
  
  METHODS
  Retrospective review of the patient's medical record and head CT imaging.
  
  
  RESULTS
  A 55-year-old woman underwent lumbar surgery for failed back syndrome. Intraoperatively, a dural tear was noted and repaired. One week later, she developed expressive aphasia, and CSF drainage from her lumbar wound was noted. A head CT revealed an acute intracranial subdural hematoma with mass effect. Evacuation of the hematoma occurred via craniotomy, and the lumbar dura was repaired intraoperatively.
  
  
  CONCLUSIONS
  We report the rare case of an acute intracranial subdural hematoma caused by a CSF leak following lumbar surgery. This report illustrates the potential morbidity associated with CSF leaks occurring after spinal surgery.
authors.affiliation: Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
authors.forename: Daniel M
authors.initials: DM
authors.lastname: Sciubba
authors.forename: Ryan M
authors.initials: RM
authors.lastname: Kretzer
authors.forename: Paul P
authors.initials: PP
authors.lastname: Wang
mesh_terms: D005260:Female; D020199:Hematoma, Subdural, Acute / Q000134:cerebrospinal fluid* / Q000175:diagnosis / Q000209:etiology; D046648:Hematoma, Subdural, Intracranial / Q000134:cerebrospinal fluid* / Q000175:diagnosis / Q000209:etiology; D006801:Humans; D008159:Lumbar Vertebrae / Q000601:surgery*; D008875:Middle Aged; D019635:Neurosurgical Procedures / Q000009:adverse effects; D012189:Retrospective Studies; D013353:Subdural Effusion / Q000134:cerebrospinal fluid* / Q000150:complications / Q000175:diagnosis