Clinical Study Chudoku kenkyu : Chudoku Kenkyukai jun kikanshi = The Japanese journal of toxicology 2013

Case of carbon monoxide poisoning with delayed encephalopathy assessed by magnetic resonance imaging.

Seino K, Hayashida A, Iseki K — Chudoku kenkyu : Chudoku Kenkyukai jun kikanshi = The Japanese journal of toxicology, 2013

View Original on PubMed PMID 23600269

Tier 2, Indexed

Automatically imported from PubMed based on relevance criteria.

Summary

What Researchers Did

Researchers reported on a case of a 21-year-old man who developed delayed encephalopathy after prolonged carbon monoxide poisoning.

What They Found

The patient, with a blood carboxyhemoglobin concentration of 4.4% on admission, showed high signal-intensity lesions in cerebral white matter on MRI by day 3. Despite hyperbaric oxygen therapy, cognitive impairment was observed on day 17, though he was discharged without neurological sequelae on day 49.

Canadian Relevance

This study has no direct Canadian connection as it is a case report from Japan.

Study Limitations

As a single case report, the findings may not be generalizable to all patients experiencing carbon monoxide poisoning.

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Study Details

Study Type	Clinical Study
Category	Carbon Monoxide Poisoning
Source	Pubmed
PubMed ID	23600269
Year Published	2013
Journal	Chudoku kenkyu : Chudoku Kenkyukai jun kikanshi = The Japanese journal of toxicology
MeSH Terms	Biomarkers; Brain; Carbon Monoxide Poisoning; Carboxyhemoglobin; Diffusion Magnetic Resonance Imaging; Humans; Hyperbaric Oxygenation; Hypoxia, Brain; Male; Monitoring, Physiologic; Risk; Suicide, Attempted; Time Factors; Tomography, X-Ray Computed; Young Adult

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This study relates to Carbon Monoxide Poisoning. Read the full clinical overview, the evidence base, and Canadian treatment access for this condition.

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Disclaimer: This study summary is provided for informational and educational purposes only. It does not constitute medical advice. The information presented reflects the findings of the original research authors and may not represent the views of Canada Hyperbarics. Always consult a qualified healthcare professional before making treatment decisions.

Last reviewed: April 2, 2026 | Reviewed by: Canada Hyperbarics Editorial Team | Editorial process | Research sources | Counts & methodology