Thyroid dysfunction in Down syndrome

Area of Science:

• Pediatrics
• Endocrinology
• Genetics

Background:

• Down syndrome (DS) is frequently associated with thyroid dysfunction, primarily hypothyroidism.
• Co-occurring conditions in DS can exacerbate health issues, making thyroid function monitoring crucial.

Purpose of the Study:

• To determine the prevalence of thyroid dysfunction in children with Down syndrome under 14 years.
• To investigate correlations between Down syndrome features and thyroid dysfunction.

Main Methods:

• A prospective study involving 32 children with Down syndrome.
• Classification into euthyroid, compensated hypothyroidism, and uncompensated hypothyroidism groups based on T3, T4, and TSH levels.
• Statistical comparison of features using the student's t-test.

Main Results:

• Hypothyroidism was identified in 15.6% of cases (5/32), including 3.1% uncompensated and 12.5% compensated.
• No cases of hyperthyroidism were observed.
• Higher hypothyroidism prevalence in infants (0-1 year) suggests congenital hypothyroidism, while in older children (9-12 years) it may indicate acquired forms. Developmental quotients and Rao's indices showed non-significant differences between hypothyroid and euthyroid DS groups.

Conclusions:

• Routine thyroid dysfunction screening is essential for all children with Down syndrome.
• Early detection and management of thyroid dysfunction can mitigate associated health problems in this population.