Isolated 3-Methylcrotonyl CoA Carboxylase Deficiency Detected by Newborn Screening Program Using Tandem Mass Spectrometry / 소아과
Korean Journal of Pediatrics
; : 561-564, 2005.
Article
em Ko
| WPRIM
| ID: wpr-109128
Biblioteca responsável:
WPRO
ABSTRACT
Isolated deficiency of 3-methylcrotonyl CoA carboxylase is a rare disorder of the catabolic pathway for leucine and many patients have mild symptoms or no symptom. However, the introduction of tandem mass spectrometry in newborn screening has revealed an unexpectedly high incidence of this disorder. We report an asymptomatic premature infant with isolated 3-methylcrotonyl CoA carboxylase deficiency detected by newborn screening program using tandem mass spectrometry. She was born at preterm, 36 weeks of gestation and her birth weight was 1,912 gm. She was delivered by Cesarian section due to maternal preeclampsia and oligohydramnios. An elevation of 3-hydroxyisovalerylcarnitine in a blood sample obtained at Seven days was detected by tandem mass screening. Massively elevated excretion of 3-hydroxyisovalerate and 3-methylcrotonylglycine was detected in the urine collected at 15 days. L-carnitine(100 mg/kg/day) was administrated orally to correct sencondary carnitine deficiency. Carnitine is conjugated with metabolites, to decrease the potential toxic effects. She is asymptomatic to date, and her growth and development are within normal limits.
Palavras-chave
Texto completo:
1
Base de dados:
WPRIM
Assunto principal:
Pré-Eclâmpsia
/
Peso ao Nascer
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Recém-Nascido Prematuro
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Carnitina
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Programas de Rastreamento
/
Incidência
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Oligo-Hidrâmnio
/
Crescimento e Desenvolvimento
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Espectrometria de Massas em Tandem
/
Leucina
Tipo de estudo:
Diagnostic_studies
/
Incidence_studies
/
Prognostic_studies
/
Screening_studies
Limite:
Female
/
Humans
/
Newborn
/
Pregnancy
Idioma:
Ko
Revista:
Korean Journal of Pediatrics
Ano de publicação:
2005
Tipo de documento:
Article