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Delayed bone development in epileptic children assessed by microdensitometer.

S Onoe1, T Mimaki, Y Seino

  • 1Department of Pediatrics, Osaka University Medical School, Japan.

Developmental Pharmacology and Therapeutics
|January 1, 1988
PubMed
Summary
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Epileptic children often experience delayed bone development, particularly in metacarpal bones. This study links anticonvulsant therapy duration and physical activity to bone development delays and altered vitamin D levels.

Area of Science:

  • Pediatric Endocrinology
  • Neurology
  • Radiology

Background:

  • Epilepsy affects bone development in children.
  • Anticonvulsant drugs may impact bone health.
  • Vitamin D metabolism is crucial for bone health.

Purpose of the Study:

  • To assess bone development in epileptic children.
  • To identify factors correlating with bone development delays.
  • To evaluate the utility of microdensitometer analysis.

Main Methods:

  • Microdensitometer analysis of hand X-rays from 101 epileptic outpatients.
  • Comparison with control groups (handicapped and normal children).
  • Assessment of serum 25-hydroxyvitamin D (25-OH-D) and 1,25-dihydroxyvitamin D (1,25-(OH)2D) levels.

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Main Results:

  • Significantly more epileptic children showed a 2+ year delay in bone development compared to controls.
  • Physical activity and duration of anticonvulsant therapy correlated with bone development.
  • Delayed bone development was associated with reduced serum 25-OH-D and elevated 1,25-(OH)2D levels.

Conclusions:

  • Microdensitometer analysis is effective for detecting mild bone impairment in epileptic children.
  • Bone development delays are prevalent in epileptic children.
  • Vitamin D metabolite levels are altered in epileptic children with delayed bone development.