What Researchers Did
Researchers investigated the connection between blood lactate and carboxy-hemoglobin levels and how sick patients were with carbon monoxide poisoning.
What They Found
Out of 201 patients, 35 (17.4%) received hyperbaric oxygen therapy (HBOT) and had higher levels of lactate and carboxy-hemoglobin (COHb). Both lactate and COHb levels were significantly higher in patients with reduced consciousness (Glasgow Coma Scale < 15) compared to those with normal consciousness (p < 0.01). The study concluded that blood lactate and COHb levels are linked to changes in consciousness in CO poisoning, suggesting lactate could help define HBOT treatment indications.
What This Means for Canadian Patients
For Canadian patients experiencing carbon monoxide poisoning, this study suggests that measuring blood lactate levels, alongside carboxy-hemoglobin, could help doctors more accurately determine the severity of their condition. This might assist in identifying patients who could benefit most from hyperbaric oxygen therapy (HBOT).
Canadian Relevance
This study covers carbon monoxide poisoning, which is a Health Canada-recognised indication for hyperbaric oxygen therapy.
Study Limitations
The study suggests blood lactate levels could help define HBOT indications but does not provide specific thresholds or directly compare treatment outcomes based on these markers.