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Neonatal thyroid screening: methods-efficiency-failures
1Hacettepe University Faculty of Medicine, Department of Pediatrics, Division of Endocrinology, Ankara, Turkey.
Insights
Newborn screening for congenital hypothyroidism (CH) is crucial for preventing brain damage. This review discusses screening methods, their efficiency, and factors contributing to missed cases in CH detection.
Area of Science:
- Pediatrics
- Endocrinology
- Preventive Medicine
Background:
- Congenital hypothyroidism (CH) affects 1 in 4000 newborns.
- Early detection and treatment of CH are vital to prevent irreversible brain damage.
- Newborn screening programs are a cornerstone of preventive medicine for CH.
Purpose of the Study:
- To review current newborn screening methods for CH.
- To evaluate the efficiency of these screening methods.
- To identify factors contributing to missed CH cases.
Main Methods:
- Analysis of T4 and TSH measurements in dried blood spots.
- Discussion of screening protocols and their limitations.
- Examination of biological and human error factors in screening.
Main Results:
- Standard screening methods are effective but not infallible.
- Disease-related factors and screening errors can lead to missed CH diagnoses.
- Human error remains a significant concern in screening programs.
Conclusions:
- Newborn screening for CH is highly successful but requires continuous improvement.
- Understanding limitations and potential errors is key to enhancing screening accuracy.
- Further research and vigilance are necessary to minimize missed CH cases.
Abstract:
Newborn screening for congenital hypothyroidism (CH) is one of the major achievements of preventive medicine, as the condition occurs frequently (1/4000 newborns) and results in brain damage if not detected and treated in the first few days of life. Measurement of T4 and/or TSH in dried blood spots collected on the second through fifth days of life are the most widely used methods in screening programs for CH currently. Some children with the disease may be missd in any screening program, however, owing to factors related to the disease itself and the methods employed in its detection, as well as factors ascribed to the element of human error, ie screening errors. The methods employed in newborn screening programs for CH, their efficiency in disease detecetion, and biological factors as well as screening errors leading to missed cases are discussed.
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