Optimizing hyperbaric oxygen initiation time in carbon monoxide poisoning: a 3-hour window enhances neurological recovery via lactate clearance

What Researchers Did

Researchers studied 12 patients with moderate-to-severe carbon monoxide poisoning to see if starting hyperbaric oxygen therapy earlier improved their recovery and to assess the value of lactate clearance and early MRI findings.

What They Found

Patients who received HBOT within 3 hours showed faster organ function recovery. Lactate levels normalizing within a median of 17.5 hours and clearing over 50% in 24 hours were linked to better neurological outcomes. Overall, 83.3% of patients recovered functionally after six months.

Canadian Relevance

This study covers carbon monoxide poisoning, which is a Health Canada-recognised indication for hyperbaric oxygen therapy.

Study Limitations

The study's small sample size of 12 patients and lack of a control group mean the results are preliminary and need further confirmation.