Delayed encephalopathy and cognitive sequelae after acute carbon monoxide poisoning: report of a case and review of the literature.

J Med Assoc Thai. 2009 Oct;92(10):1374-9.

Source

Division of Neurology, Department of Medicine, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.

Abstract

Serious delayed encephalopathy and cognitive sequelae following acute carbon monoxide intoxication constitutes a rare and a distinct entity. A case of delayed encephalopathy and cognitive sequelae after acute carbon monoxide poisoning is presented. The patient is a 50-year-old Thai female with a history of carbon monoxide poisoning during her vacation tour in Arizona in winter. She developed encephalopathy 4 weeks after recovery from the acute stage. Her MRI-brain found abnormal white matter change of cerebral hemispheres bilaterally and abnormal signal intensity at both putamens and caudate nuclei. She regained some improvement in her memory and other cognitive function after 4 weeks of treatment including hyperbaric oxygen therapy (HBOT).

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