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Blood lead levels in children with neurological disorders: a single centre preliminary study
Touran Mahmoudian1, Mohamadreza Modaresi, Ali Zarei
1Department of Pediatric Neurology, School of Medicine, Isfahan University of Medical Sciences, Isfahan.
Insights
Children with neurological disorders show higher blood lead levels compared to healthy children. This suggests lead exposure may contribute to neurological issues in pediatric populations.
Area of Science:
- Pediatric Neurology
- Environmental Health
- Toxicology
Background:
- Lead poisoning is a significant health concern for children, potentially causing developmental and behavioral issues.
- Chronic low-level lead exposure can manifest as learning disabilities, hyperactivity, and impaired growth.
Purpose of the Study:
- To investigate the association between blood lead levels and neurological disorders in children.
- To compare blood lead concentrations in children with neurological disorders against healthy controls.
Main Methods:
- A cross-sectional study involving 100 children (aged 1-10) with neurological disorders.
- Blood lead concentrations were determined using flame atomic absorption spectrometry.
- A control group of 100 age- and sex-matched healthy children was included.
Main Results:
- Children with neurological disorders had significantly higher mean blood lead concentrations (113.2 ± 47.5 µg/L) than controls (84.7 ± 38.0 µg/L).
- Elevated blood lead levels (>100 µg/L) were identified in 44% of children with neurological disorders versus 19% of controls.
- A statistically significant difference was observed between the groups (p<0.01).
Conclusions:
- Increased blood lead levels may be linked to the presence of neurological disorders in children.
- Measuring blood lead levels could be a valuable component in the diagnostic evaluation of pediatric neurological conditions.
Objective:
Lead poisoning is a potentially devastating problem among young children. Chronic low level lead exposure can lead to learning disabilities and behavior changes such as colic, insomnia, hyperactivity, impaired growth, hearing loss and upper extremity weakness. The purpose of this cross sectional study was to determine the blood lead level in children with neurological disorders in comparison with healthy controls.
Methods:
Blood lead concentrations were measured by flame atomic absorption spectrometry in 100 children aged 1-10 years and suffering from various neurological disorders. One hundred age and sex-matched healthy children served as controls.
Results:
The mean blood lead concentration was higher in children with neurological disorders than in controls (113.2 + or - 47.5 microg/L vs 84.7 + or - 38.0 microg/L; p<0.01). Overall, 44% of children with neurological disorders and 19% of controls were found to have increased blood lead levels, i.e.>100 microg/L.
Conclusions:
An increase in blood lead level in children might be related to neurological disorders. The measurement of blood lead level might be included in diagnostic eveluation of children with neurological disorders.
