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Early treated hypothyroidism: development at 3 years
Insights
Children with congenital hypothyroidism (CH) generally develop normally. However, some may experience delays in motor skills, particularly if diagnosed with severe thyroid hormone deficiency.
Area of Science:
- Pediatric Endocrinology
- Developmental Psychology
Background:
- Congenital hypothyroidism (CH) is a condition present from birth affecting thyroid hormone production.
- Early diagnosis and treatment are crucial for normal development in infants with CH.
Purpose of the Study:
- To assess the psychological development of children with congenital hypothyroidism.
- To identify factors influencing developmental outcomes in children with CH.
Main Methods:
- Psychological assessments conducted at 1, 3, and 5 years of age.
- Comparison of children with CH to matched control groups.
- Analysis of correlations between initial thyroid hormone levels, bone age, and thyroid tissue presence with developmental outcomes.
Main Results:
- Most children with CH scored within the normal range in overall development.
- Children with CH performed slightly less well than controls in overall development.
- A significant delay in motor skills was observed in children with CH.
- Lower initial thyroxine and triiodothyronine levels, delayed bone age, and absence of thyroid tissue were associated with poorer prognosis.
Conclusions:
- Congenital hypothyroidism, when treated, is generally associated with normal psychological development.
- Motor skills may be an area of concern requiring monitoring in children with CH.
- Severe initial indicators of CH may predict less favorable developmental outcomes.
Abstract:
Eighty children from the North West and North East Thames Regional Health Authorities who had been identified as having congenital hypothyroidism either by neonatal screening (76 cases) or by clinical symptoms (four) were seen for psychological assessments at 1 (60 cases), 3 (58), and/or 5 (20) years of age. Almost all the children's scores were in the normal range, and comparisons with matched controls suggested that they were doing only slightly less well than normal children in overall development. They were significantly slower, however, on a motor skills task. Moreover, a low initial serum thyroxine and triiodothyronine value, considerable delay in initial bone age, and an absence of thyroid tissue on isotope scan seemed to be associated with a somewhat poorer prognosis.