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Premature craniosynostosis: A common complication of juvenile thyrotoxicosis
Insights
Juvenile thyrotoxicosis is linked to premature craniosynostosis, a condition where cranial sutures close early. This study found craniosynostosis in all thyrotoxicosis patients, but it did not cause increased intracranial pressure.
Area of Science:
- Pediatrics
- Endocrinology
- Radiology
Background:
- Thyrotoxicosis, a condition of excess thyroid hormone, can affect growth and development in children.
- The relationship between juvenile thyrotoxicosis and cranial development, specifically suture closure, requires further elucidation.
Purpose of the Study:
- To investigate the prevalence of cranial vault suture opacification (craniosynostosis) in children with thyrotoxicosis.
- To compare cranial suture closure patterns in children with thyrotoxicosis to control groups and to children with advanced bone age from other causes.
Main Methods:
- Radiographic evaluation of cranial vault suture opacification and bone age in ten children with thyrotoxicosis.
- Comparison of findings with 96 age-matched control children.
- Radiographic assessment of children with advanced bone age due to virilizing adrenal hyperplasia and precocious puberty.
Main Results:
- All ten children with thyrotoxicosis exhibited craniosynostosis.
- Only one child with thyrotoxicosis had an advanced bone age (greater than 2 SD).
- Children with advanced bone age from other endocrine conditions did not show craniosynostosis.
Conclusions:
- Premature craniosynostosis appears to be a common feature of juvenile thyrotoxicosis.
- Thyrotoxic premature craniosynostosis did not impede head growth or cause increased intracranial pressure in this cohort.
- Further research is recommended to explore potential long-term neurodevelopmental effects.
Abstract:
Cranial vault suture opacification (apparent closure) and bone age were evaluated roentgenographically in ten children with thyrotoxicosis. The bone age was advanced greater than 2 SD in only one. In comparison to 96 control children of similar age, craniosynostosis was present in each of the patients with thyrotoxicosis. Children with advanced bone age, nine due to virilizing adrenal hyperplasia and three with precocious puberty, had normal radiographic patterns of cranial suture closure. Thyrotoxic premature craniosynostosis did not interfere with continued head circumference growth nor did it result in clinical or radiographic evidence of increased intracranial pressure. We conclude that premature craniosynostosis appears to be a common feature of juvenile thyrotoxicosis. Investigation of the possible long-term adverse effects of this entity on central nervous system function is advocated.