What Researchers Did
Researchers measured levels of a brain protein called S100B in 38 patients with carbon monoxide poisoning to see if it could indicate brain injury.
What They Found
All three patients who were unconscious upon arrival at the emergency department had elevated S100B levels, and the patient with the highest S100B level died. Among six patients with temporary unconsciousness at the scene, two showed elevated S100B, while all 29 conscious patients had normal S100B levels.
Canadian Relevance
This study covers carbon monoxide poisoning, which is a Health Canada-recognised indication for hyperbaric oxygen therapy.
Study Limitations
As a pilot study, the small number of participants limits the generalizability of these initial findings.