Abstract |
We report our experience in a cohort of patients with hyperphenylalaninemia in a tertiary care referral center in Lebanon. Forty-one sequential patients were studied: 34 classical phenylketonuria (PKU), 3 hyperphenylalaninemia (non-PKU), and 4 biopterin metabolism defects. The majority of cases were clinically diagnosed at variable ages with variable neurological outcomes. Only 29.3% were detected by neonatal screening. Two unusual cases were observed in the context of inadequate treatment in 1 and delayed therapy in the other: a newborn with PKU developed severe keratomalacia; and a 5-year-old girl with dihydropteridine reductase deficiency due to a novel mutation identified in the quinoid dihydropteridine reductase gene developed Lennox-Gastaut syndrome and white matter changes with periventricular cysts. Part of our experience parallels that in the West. However, the clinical manifestations observed in our patients emphasize the importance of a national newborn screening program with efficient management of diagnosed cases.
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Authors | Pascale E Karam, Rose T Daher, Lisbeth B Moller, Mohamad A Mikati |
Journal | Journal of child neurology
(J Child Neurol)
Vol. 26
Issue 2
Pg. 142-6
(Feb 2011)
ISSN: 1708-8283 [Electronic] United States |
PMID | 20823030
(Publication Type: Journal Article)
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Chemical References |
- Dihydropteridine Reductase
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Topics |
- Child, Preschool
- Dihydropteridine Reductase
(genetics)
- Female
- Genotype
- Humans
- Infant
- Infant, Newborn
- Lebanon
- Male
- Neonatal Screening
- Phenylketonurias
(diagnosis, genetics)
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