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Delayed cerebral development in twins with congenital hyperthyroidism.

A E Kopelman

    American Journal of Diseases of Children (1960)
    |September 1, 1983
    PubMed
    Summary

    Congenital hyperthyroidism in twins led to delayed brain development, including ventriculomegaly and abnormal gyral patterns. These findings suggest fetal and neonatal hyperthyroidism can negatively impact brain maturation and cause lasting developmental issues.

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    Area of Science:

    • Neonatal medicine
    • Developmental neuroscience
    • Pediatric endocrinology

    Background:

    • Congenital hyperthyroidism is a condition present at birth that affects thyroid hormone levels.
    • Thyroid hormones are crucial for normal fetal and neonatal brain development.
    • Understanding the impact of hyperthyroidism on the developing brain is essential for early intervention.

    Observation:

    • Identical twins presented with congenital hyperthyroidism.
    • Cranial computed tomographic scans revealed ventriculomegaly, increased interhemispheric fissure space, and exaggerated gyral patterns.
    • Both children exhibited delayed development at 3.5 years of age.

    Findings:

    • Fetal and neonatal hyperthyroidism can disrupt normal brain growth and maturation.

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  • Neuranatomic abnormalities observed in the twins correlate with developmental delays.
  • The severity of developmental delay may be linked to the duration and extent of hyperthyroid exposure during critical developmental periods.

    • Implications:

    • Early diagnosis and management of congenital hyperthyroidism are critical to mitigate potential neurodevelopmental sequelae.
    • This case highlights the importance of monitoring thyroid function in newborns, especially those with risk factors.
    • Further research is warranted to elucidate the precise mechanisms by which hyperthyroidism affects brain development and to optimize therapeutic strategies.