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Lead poisoning in a child after a gunshot injury
1Department of Family Medicine, University Hospitals of Cleveland, OH 44106.
Insights
Children with retained intracranial lead pellets from gunshot injuries may develop lead poisoning. Blood lead levels can rebound after chelation therapy, requiring careful risk assessment for long-term management.
Area of Science:
- Toxicology
- Pediatrics
- Neurology
Background:
- Lead poisoning is a significant public health concern, particularly in children, potentially causing irreversible developmental deficits.
- Early detection and intervention are crucial for managing lead toxicity and preventing long-term sequelae.
Observation:
- A case is presented of a child with retained intracranial lead pellets following a gunshot injury.
- Elevated blood lead levels were detected approximately one year post-injury, with no identified environmental lead source.
- A twin sibling residing in the same environment exhibited significantly lower lead levels, suggesting the pellets as the primary source.
Findings:
- Blood lead levels in the patient decreased with chelation therapy but consistently rebounded to toxic levels upon cessation.
- This pattern indicates a continuous release of lead from the intracranial fragments.
- The case highlights a unique and challenging presentation of lead poisoning.
Implications:
- Physicians must maintain a high index of suspicion for lead poisoning in children with retained bullet fragments, even years after the initial injury.
- Screening for elevated blood lead levels should be considered in such pediatric cases.
- For patients where surgical removal of fragments is not feasible, a careful balance between the risks of chronic chelation therapy and ongoing lead toxicity is necessary.
Abstract:
Lead poisoning is a common disease that, if not detected, can lead to developmental delay and other serious sequelae. We report the case of a child with retained intracranial lead pellets from a gunshot injury, in whom elevated blood lead levels were detected approximately 1 year after the injury. No environmental source of lead was found, and a twin sister living in the same dwelling had considerably lower lead levels. The patient's lead levels diminished after each of four courses of chelation, but rebounded each time to potentially toxic levels after termination of therapy. Physicians should be particularly alert in screening for elevated lead levels in children with retained bullet fragments. In patients in whom removal of the bullet fragments is impractical, the potential risks of long-term chelation therapy must be weighed against the risks of lead toxicity.