title: The role of computerized tomography-myelography in a patient with spontaneous intracranial hypotension from multiple cerebrospinal fluid leaks.
abstract: OBJECTIVE
  To describe a patient with spontaneous intracranial hypotension (SIH) secondary to multiple sites of cerebrospinal fluid (CSF) leaks, a rarely described phenomenon. To compare computerized tomography-myelography with radionuclide cisternography as confirmatory diagnostic aids in SIH.
  
  
  METHODS
  A patient with SIH had transient or no response to 2 thoracic epidural blood patches. A computerized tomography-myelography showed bilateral CSF leaks at T11-T12 and T12-L1 levels and on the left side of T10-T11.
  
  
  RESULTS
  A left paramedian epidural blood patch was performed at T12-L1 under fluoroscopy guidance. Injection of 1 mL dye showed confinement of the dye at the left T11-L1 epidural space. The patient had 90% to 95% relief of her headache and complete relief at 4 months. She was asymptomatic 1 year after the last epidural blood patch.
  
  
  CONCLUSIONS
  In a patient with SIH, a computerized tomography-myelography should be performed if an initial epidural blood patch is ineffective. This is to show the vertebral level and site(s) of CSF leak and to guide the physician to the ideal vertebral level for the epidural blood patch.
authors.affiliation: Department of Anesthesiology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA. hbenzon@nmff.org
authors.forename: Honorio T
authors.initials: HT
authors.lastname: Benzon
authors.forename: Rasha S
authors.initials: RS
authors.lastname: Jabri
authors.forename: Matthew T
authors.initials: MT
authors.lastname: Walker
authors.forename: Eric T
authors.initials: ET
authors.lastname: Mizuno
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Huser
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D019585:Intracranial Hypotension / Q000175:diagnosis* / Q000209:etiology*; D009192:Myelography; D013353:Subdural Effusion / Q000150:complications* / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed