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Published on: June 25, 2010
[Neonatal screening for phenylketonuria and hypothyroidism in France. A 12-year experience]
1Clinique de Génétique Médicale, Hôpital des Enfants Malades, Paris.
Insights
France
Area of Science:
- Neonatal screening
- Pediatric medicine
- Public health
Context:
- Systematic, co-ordinated, and controlled neonatal screening programs in France.
- Extensive screening for phenylketonuria (PKU) and congenital hypothyroidism.
- Long-term data collection and analysis of screening outcomes.
Purpose:
- To report on the experience and outcomes of a national neonatal screening program.
- To assess the effectiveness of screening for phenylketonuria and hypothyroidism.
- To highlight the importance of false negative investigation and specialized care.
Summary:
- Nearly 13 million tests for phenylketonuria (PKU) and over 7 million for hypothyroidism conducted.
- Screened approximately 850 children with PKU and over 1,600 with hypothyroidism.
- Estimated PKU frequency at 1:16,394 and hypothyroidism at 1:4,041.
Impact:
- Enabled early detection and care for over 2,500 children.
- Prevented mental retardation and facilitated normal development in affected infants.
- Demonstrated the significant positive impact of comprehensive neonatal screening programs.
Abstract:
The authors report their experience in the systematic, co-ordinated and controlled neonatal screening in France: a coverage of approximately 100 per cent for several years, nearly 13 millions of tests for phenylketonuria and more than 7 millions for hypothyroidism, almost 850 phenylketonuric children and more than 1,600 patients with hypothyroidism, screened and taken care of. The frequency of phenylketonuria is estimated at 1 for 16,394 and the frequency of hypothyroidism at 1 for 4,041. They insist on the need for a strict investigation of false negatives and point out a few specific points on the care of affected children. Overall, the assessment of neonatal screening is positive since it has allowed 2,500 children, doomed to mental retardation, to have a normal growth.
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