Newborn PKU screening in Turkey: at present and organization for future
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1Department of Pediatrics, School of Health Technology, Hacettepe University, Ankara, Turkey.
Insights
Turkey
Area of Science:
- Medical Genetics
- Public Health
- Pediatrics
Background:
- Phenylketonuria (PKU) screening is a national child health program in Turkey.
- The program, established in 1986, has expanded to cover all major cities.
- Collaboration exists between the Ministry of Health and university hospitals.
Purpose of the Study:
- To report on the outcomes of phenylketonuria screening in Turkey.
- To identify challenges in the screening and management of PKU cases.
- To recommend improvements for the national screening program.
Main Methods:
- Guthrie test used for screening.
- Screening conducted at the Hacettepe Screening Center in Ankara.
- Data analyzed from 1,605,582 screened newborns.
Main Results:
- 383 cases of persistent hyperphenylalaninemia detected (1:4,172 incidence).
- Classified cases: 216 classical PKU, 102 mild-moderate PKU, 58 mild hyperphenylalaninemia.
- Identified issues: sample collection, early discharge, case follow-up, and dietary compliance.
Conclusions:
- The national PKU screening program has identified a significant number of cases.
- Challenges in sample collection, follow-up, and treatment adherence require addressing.
- An intersectoral approach is needed to enhance newborn screening and management, potentially including hypothyroidism.
Abstract:
At present, pkenylketonuria screening is a national child health program in Turkey which is carried out collaboratively by the Ministry of Health and three University Children's Hospitals in Ankara, Istanbul and Izmir. Since 1986 the number of cities included in the screening program has gradually increased, now and it covers all the metropolises the country. A total of 383 babies were found with persistent hyperphenylalaninemia (1:4,172) among 1,605,582 babies screened by the Guthrie test at the Hacettepe Screening Center in Ankara. By taking into account pretreatment phenylalanine levels and phenlyalanine tolerances at five years of age, the numbers of classical and mild-moderate phenylketonuria and mild hyperphenylalaninemia cases were 216, 102 and 58, respectively. The major problems encountered in the screening program and in management of the detected cases were unsatisfactory sample collection, early discharge from maternity hospitals, difficulties in reaching some detected cases, and noncompliance with dietary therapy due to illiterate parents or to lack of social insurance. To screen and treat all newborns for phenylketonuria and to include at least hypothyroidism in the screening program, there is a need for a more disciplinary intersectoral approach than exists at present.
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