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Iranian Journal of Pediatrics
Tehran University of Medical Sciences Press
ISSN: 1018-4406
EISSN: 2008-2150
Vol. 25, No. 6, 2015, pp. 1-5
Bioline Code: pe15093
Full paper language: English
Document type: Research Article
Document available free of charge

Iranian Journal of Pediatrics, Vol. 25, No. 6, 2015, pp. 1-5

 en Intellectual and Developmental Status in Children With Hyperphenylalaninemia and PKU Who Were Screened in a National Program
Aghasi, Parisa; Setoodeh, Arya; Sayarifard, Azadeh; Rashidiyan, Maryam; Sayarifard, Fatemeh; Rabbani, Ali & Mahmoudi-Gharaei, Javad


Background: Hyperphenylalaninemia (HPA) and Phenylkeonuria (PKU) are metabolic errors caused by deficiency of phenylalanine hydroxylase enzyme, which results in increased level of phenylalanine. This increase is toxic to the growing brain.
Objectives: The purpose of this study was to compare the intellectual and developmental status in HPA and PKU children with normal population in national screening program.
Patients and Methods: In a historical cohort study, 41 PKU patients who had the inclusion criteria and 41 healthy children were evaluated. Wechsler preschool and primary scale of intelligence-3rd edition (WPPI-3) was used in order to assess the intellectual status of children 4 years and older and Ages and stages questionnaire (ASQ) was used to assess the developmental status of children 5 years and younger.
Results: In intellectual test comparison, the two groups showed significant difference in Wechsler’s performance intelligence score and some performance subscales (P-value < 0.01). In comparison of developmental status, no significant difference was observed between the two groups (P-value > 0.05).
Conclusions: Even with early diagnosis and treatment of PKU patients, these children show some deficiencies intellectually compared to normal children. This study emphasizes on necessity for screening intellectual and developmental status of PKU patients so that effective medical or educational measures can taken in case of deficiencies.

Hyperphenylalaninemia; PKU; Intelligence; Development

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