2024 Volume 41 Issue 1 Pages 69-72
A 70–year–old man went to bed with a brazier in December X 2021. The next day, he felt ill and missed two days of work. However, the patient recovered thereafter. Twenty days after illness. He developed cognitive dysfunction. The patient visited the previous hospital, wherein a head magnetic resonance imaging scan showed leukoencephalopathy. He was suspected of delayed neurologic sequelae of carbon monoxide intoxication. He was referred to our hospital on day X+35 for hyperbaric oxygen therapy (HBOT). The patient underwent HBOT on the same day of admission. Although there was little improvement after 10 sessions, rapid improvement was observed after 30 sessions. Therefore, the patient was discharged after completing 43 sessions. After discharge, 1–month and 5–month follow–up revealed sustained improvement. HBOT has been reported to be effective in the treatment of carbon monoxide poisoning. However, there is no established theory or guidelines for the duration of treatment with HBOT. We suggest that long–term HBOT might have contributed to the improvement in symptoms in this case.
