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Metabolic Diseases in Hyperammonemic Newborns, Pediatric

Tamanna R. Roshan Lal, MBChB and Ada Hamosh, MD, MPH Reviewed 10/2018
 


BASICS

DESCRIPTION

  • Inborn errors of metabolism are inherited defects in biosynthesis, catabolism, or transport of lipids, amino acids, or carbohydrates. The first presentation of an inborn error of met...

DIAGNOSIS

HISTORY

  • Evidence of systemic disease: A variety of systemic newborn illnesses, including sepsis, can be complicated by secondary hyperammonemia.

  • Family history of poorly explained pediatric de...

TREATMENT

Presumptive treatment should not await a definitive diagnosis but should be based on clinical suspicion and initial labs. Delays in treatment can be fatal and will cause brain damage. 

GENERAL MEASURES

ONGOING CARE

  • Specific therapies are best carried out under the supervision of a metabolic specialist and a metabolic nutritionist. Goal of every long-term treatment is to achieve a protein-sparing ana...

ADDITIONAL READING

  • Champion MP. An approach to the diagnosis of inherited metabolic disease. Arch Dis Child Educ Pract Ed.  2010;95(2):40–46. [View Abstract on OvidInsights]

  • Ficicioglu C, Bearden ...

CODES

ICD9

  • 277.89 Other specified disorders of metabolism

  • 270.6 Disorders of urea cycle metabolism

  • 271.1 Galactosemia

  • 270.6 Disorders of urea cycle metabolism

  • 277.85 Disorders of fatty acid oxidation

ICD10

  • E...

FAQ

  • Q: Can females have OTC deficiency?

  • A: OTC is an X-linked gene, and females are generally asymptomatic carriers. However, due to “skewed” X inactivation of the OTC gene, affected female may exhibit...

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