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Congenital hypothyroidism: increased risk of neonatal morbidity results in delayed treatment
Insights
Congenital hypothyroidism (CH) screening is vital; infants with CH face higher risks of other health issues. Delays in screening or treatment for CH with complications should be avoided.
Area of Science:
- Pediatrics
- Endocrinology
- Public Health
Background:
- Congenital hypothyroidism (CH) is a common endocrine disorder in newborns.
- Early detection and treatment of CH are crucial to prevent developmental delays.
- Infants with CH may have associated congenital defects and complications.
Purpose of the Study:
- To determine the incidence of CH in a large infant population.
- To investigate the association of CH with other defects and complications.
- To analyze screening and treatment delays in infants with CH and associated complications.
Main Methods:
- Population-based screening of 617,913 infants for CH.
- Retrospective analysis of infants diagnosed with CH.
- Comparison of outcomes and care timelines between infants with isolated CH and those with additional complications.
Main Results:
- 100 infants (1:6179) were diagnosed with CH.
- 32% of infants with CH had additional defects or complications.
- Infants with CH had higher rates of congenital heart disease, malformations, respiratory distress, and mortality.
- Black infants had lower CH incidence but higher risk of additional impairment.
- Infants with CH and complications experienced significant delays in screening and treatment.
Conclusions:
- Congenital malformations and neonatal complications do not warrant deferring CH screening.
- Timely screening and treatment are essential for all infants diagnosed with CH, regardless of complications.
- Further research into risk factors and disparities in CH care is warranted.
Abstract:
In a population-based screen of 617,913 infants, primary congenital hypothyroidism (CH) was confirmed in 100 children. 32 of the 100 infants with CH had an additional defect or complication. In the group with CH the rates of congenital heart disease, non-cardiac malformations, respiratory distress syndrome, and death were higher than in the general population of the same age. Black infants were less likely than whites to have CH, but were at twice the risk of additional impairment. Infants with CH who had an additional complication were screened (12.7 vs 4.8 days) and treated (32.4 vs 19.7 days) significantly later than those infants with isolated CH. Congenital malformations and neonatal complications should not be reasons for deferring screening for CH.