title: Neuropsychologic and functional recovery from severe carbon monoxide poisoning without hyperbaric oxygen therapy.
abstract: OBJECTIVE
  To test the hypothesis that neuropsychologic test results and functional outcome will be abnormal if hyperbaric oxygen (HBO) is not used in patients with severe carbon monoxide (CO) poisoning.
  
  
  METHODS
  For a 1-year interval, we retrospectively identified all CO-poisoned patients who were comatose on presentation at a large, urban tertiary hospital and did not receive HBO therapy. Prospectively, 6 and 12 months after CO poisoning, we administered standardized questionnaires to assess functional outcome. At 6 months, we performed extensive neuropsychologic testing.
  
  
  RESULTS
  All four patients exhibited normal performance on a neuropsychologic test battery at 6 months. The Folstein Mini-Mental Status Examination was normal in all patients. All patients had normal functional outcomes.
  
  
  CONCLUSIONS
  Normal neuropsychologic and functional outcomes are possible after severe CO poisoning without the use of HBO therapy.
authors.affiliation: Hyperbaric Medicine LDS Hospital, Salt Lake City, Utah 84143, USA, lweaver@ihc.com
authors.forename: L K
authors.initials: LK
authors.lastname: Weaver
authors.forename: R O
authors.initials: RO
authors.lastname: Hopkins
authors.forename: V
authors.initials: V
authors.lastname: Larson-Lohr
mesh_terms: D000203:Activities of Daily Living; D000328:Adult; D002249:Carbon Monoxide Poisoning / Q000523:psychology* / Q000534:rehabilitation* / Q000628:therapy; D005260:Female; D006801:Humans; D006931:Hyperbaric Oxygenation; D008297:Male; D008609:Mental Status Schedule; D008875:Middle Aged; D009483:Neuropsychological Tests; D012189:Retrospective Studies