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Diagnostic re-evaluation of children with congenital hypothyroidism

Priya S Nair1, S Sobhakumar, Lalitha Kailas

  • 1Department of Pediatrics, SAT Hospital, Medical College, Thiruvananthapuram, India. priyanishanth@gmail.com

Indian Pediatrics
|March 24, 2010
PubMed

Insights

Fifty percent of children diagnosed with congenital hypothyroidism may no longer require thyroid hormone supplementation. This study investigated causes and frequency of transient vs. permanent congenital hypothyroidism in children over three years old.

Area of Science:

  • Pediatric Endocrinology
  • Neonatal Screening
  • Thyroid Disorders

Background:

  • Congenital hypothyroidism (CH) requires lifelong thyroid hormone replacement.
  • Determining the cause and persistence of CH is crucial for management.
  • Early diagnosis and treatment are vital for neurodevelopmental outcomes.

Purpose of the Study:

  • Investigate the etiologies of CH in children over three years of age.
  • Determine the frequency of transient versus permanent CH in this cohort.
  • Identify factors that predict the persistence of CH.

Main Methods:

  • Hospital-based observational study in a pediatric endocrine clinic.
  • Evaluated children over three years old on CH treatment.
  • Utilized thyroid function tests, ultrasound, and scintigraphy to diagnose CH causes and persistence.

Main Results:

  • 50% of children (18/36) had transient hypothyroidism.
  • Thyroid agenesis was identified in 41.7% (15/36) of cases.
  • Higher initial TSH levels were associated with permanent CH (P=0.002).

Conclusions:

  • Thyroid hormone supplementation can be discontinued in 50% of children with CH.
  • Etiological investigation is essential for optimizing CH management.
  • Transient CH is a significant proportion of cases in older children.
Abstract

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