Prognostic Biomarkers in CO Poisoning

Wonju Severance Christian Hospital

Status: Completed

Conditions: Carbon Monoxide Poisoning; Biomarkers; Hyperbaric Oxygenation

Treatments: Procedure: Hyperbaric oxygen therapy

Study type: Observational

Funder types: Other

Identifiers

NCT05088005

CO-new biomarkers

Details and patient eligibility

About

Mitochondrial and oxidative stress participate in the pathogenic mechanisms of carbon monoxide (CO)-induced toxicity. Thus, serum indicators of mitochondrial and oxidative stress could be useful for predicting neurocognitive prognosis of post-CO poisoning. This prospective observational study of consecutive patients requiring hyperbaric oxygen therapy (HBO2) for acute CO poisoning measured serum biomarkers of mitochondrial (growth differentiation factor 15 [GDF15]; fibroblast growth factor 21 [FGF21]) and oxidative (8-Oxo-2'-deoxyguanosine [8-OHdG] and malondialdehyde [MDA]) stresses at arrival at the emergency department (0 h), and at 24 h and 7 days after HBO2 completion. We evaluated neurocognitive outcomes using the Global Deterioration Scale (GDS; favorable [1-3 points] or poor [4-7 points] outcomes).

Full description

Mitochondrial and oxidative stress participate in the pathogenic mechanisms of carbon monoxide (CO)-induced toxicity. Thus, serum indicators of mitochondrial and oxidative stress could be useful for predicting neurocognitive prognosis of post-CO poisoning.

This prospective observational study of consecutive patients requiring hyperbaric oxygen therapy (HBO2) for acute CO poisoning measured serum biomarkers of mitochondrial (growth differentiation factor 15 [GDF15]; fibroblast growth factor 21 [FGF21]) and oxidative (8-Oxo-2'-deoxyguanosine [8-OHdG] and malondialdehyde [MDA]) stresses at arrival at the emergency department (0 h), and at 24 h and 7 days after HBO2 completion. We evaluated neurocognitive outcomes using the Global Deterioration Scale (GDS; favorable [1-3 points] or poor [4-7 points] outcomes).

Levels of serum mitochondrial (GDF15 and FGF21) and oxidative stress (8-OHdG and MDA) biomarkers pre- and post-HBO2 were compared, to assess whether HBO2 reduced stress. In addition, we evaluated whether the blood test results correlated with the patient's neurocognitive prognosis at 1 month.

Enrollment: 51 patients

Sex: All

Ages: 19+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• CO poisoned patients

Exclusion criteria

1. age < 19 years
2. a history of metabolic diseases
3. co-ingestion of drugs and alcohol, which may affect the biomarkers
4. discharge from the ED or transfer to another hospital
5. refusal to undergo HBO2
6. refusal to enroll in this study
7. lack of follow-up for assessing neurocognitive outcomes.

Trial design

51 participants in 1 patient group

Acute CO poisoning

Description:

A diagnosis of CO poisoning was made according to medical history and carboxyhemoglobin \>5% (\>10% in smokers).

Treatment:

Procedure: Hyperbaric oxygen therapy