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Carbon monoxide mass exposure in a pediatric population
A E Klasner1, S R Smith, M W Thompson
1Saint Louis University School of Medicine, Cardinal Glennon Children's Hospital, MO 63104, USA.
Summary
This study on mass carbon monoxide (CO) intoxication in children found a CO half-life of 44 minutes. Some children experienced symptoms at lower carboxyhemoglobin (COHb) levels than previously thought.
Area of Science:
- Pediatric toxicology
- Environmental health
- Emergency medicine
Background:
- Mass carbon monoxide (CO) intoxication events require understanding of toxicokinetics in pediatric populations.
- Assessing outcomes and CO half-life is crucial for effective treatment protocols.
Purpose of the Study:
- To detail the outcomes of a mass CO intoxication incident.
- To determine the CO half-life in school-aged children exposed to elevated CO levels.
Main Methods:
- Retrospective chart review of 177 pediatric patients from a 1996 CO leak at an elementary school.
- Analysis of demographics, symptoms, and carboxyhemoglobin (COHb) levels over time.
- Calculation of CO half-life using COHb measurements during 100% oxygen therapy.
Main Results:
- 177 children's data were analyzed; 88% presented with symptoms.
- Initial mean COHb level was 7.0%, decreasing to 2.7% in subsequent measurements.
- The calculated CO half-life was 44.0 minutes under 100% oxygen.
Conclusions:
- Children may exhibit symptoms at COHb levels traditionally considered non-toxic.
- CO elimination in this pediatric cohort was faster than previously reported in literature.