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Developmental and behavioral disorders in children with congenital hypothyroidism

M Sutan-Assin1

  • 1Department of Child Health, Medical Faculty, University of Indonesia, Jakarta.

Paediatrica Indonesiana
|March 1, 1990
PubMed

Insights

Untreated congenital hypothyroidism (CHT) leads to severe intellectual and physical deficits. Early treatment is crucial, as delayed intervention results in persistent developmental and behavioral disorders despite thyroid hormone therapy.

Area of Science:

  • Pediatrics
  • Endocrinology
  • Developmental Psychology

Background:

  • Congenital hypothyroidism (CHT) is a condition present at birth that can cause significant physical and intellectual disability if not promptly treated.
  • Delayed diagnosis and treatment of CHT are associated with irreversible neurological damage and long-term developmental impairments.
  • Optimal outcomes for CHT require initiation of thyroid hormone replacement therapy within the first weeks of life.

Purpose of the Study:

  • To describe the developmental and behavioral disorders in children with congenital hypothyroidism before and after treatment.
  • To evaluate the long-term impact of delayed CHT treatment on psycho-social achievements.
  • To provide recommendations for managing developmental and behavioral issues in children with CHT.

Main Methods:

  • Retrospective analysis of clinical data from children diagnosed with congenital hypothyroidism.
  • Assessment of physical growth, developmental milestones, and psycho-social achievements before and after thyroid hormone therapy.
  • Evaluation of specific learning disabilities (speaking, writing, reading, arithmetic) and behavioral disorders.

Main Results:

  • A significant proportion of patients were diagnosed with CHT after one year of age, with 45% over five years old.
  • While thyroid hormone treatment improved physical growth, psycho-social and cognitive achievements remained significantly impaired.
  • Persistent deficits in speech, reading, writing, arithmetic, and behavioral regulation were observed even after prolonged treatment.

Conclusions:

  • Late diagnosis and treatment of congenital hypothyroidism lead to persistent developmental and behavioral challenges.
  • Thyroid hormone replacement therapy is essential but may not fully reverse the neurodevelopmental sequelae of early-onset hypothyroidism.
  • Interdisciplinary management strategies are needed to address the complex needs of children with CHT, particularly those diagnosed late.

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