Cited by 240Sexual Differentiation and DisordersMetabolism and Genetic DisordersAdrenal Hormones and Disorders

Neonatal screening for congenital adrenal hyperplasia

White, Perrin C.·2009·Nature Reviews Endocrinology

Abstract

Congenital adrenal hyperplasia (CAH) caused by steroid 21-hydroxylase deficiency occurs in 1:16,000-1:20,000 births. If not promptly diagnosed and treated, CAH can cause death in early infancy from shock, hyponatremia and hyperkalemia. Affected girls usually have ambiguous genitalia but boys appear normal; therefore, newborn babies are commonly screened for CAH in the US and many other countries. By identifying babies with severe, salt-wasting CAH before they develop adrenal crises, screening reduces morbidity and mortality, particularly among affected boys. Diagnosis is based on elevated levels of 17-hydroxyprogesterone, the preferred substrate for steroid 21-hydroxylase. Initial testing usually involves dissociation-enhanced lanthanide fluorescence immunoassay that has a low positive predictive value (about 1%), which leads to many follow-up evaluations that have negative results. The positive predictive value might be improved by second-tier screening using DNA-based methods or liquid chromatography followed by tandem mass spectrometry, but these methods are not widely adopted. Cost estimates for such screening range from US$20,000 to $300,000 per life-year saved. In babies with markedly abnormal screen results, levels of serum electrolytes and 17-hydroxyprogesterone should be immediately determined, but the most reliable way to diagnose CAH is measurement of levels of steroid precursors after stimulation with cosyntropin.

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Crossref · 10.1038/nrendo.2009.148

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Authors
White, P. C.
Affiliations
The University of Texas Southwestern Medical Center (US)
Corresponding author
White, Perrin C.
Venue
Nature Reviews Endocrinology
Published
2009-09
Volume
5
Issue
9
Pages
490-498
ISSN
  • 1759-5029 (ISSN-L)
  • 1759-5037
OpenAlex
W1995900346
Cited by
240
References
74
Citations by year
2026: 4 · 2025: 8 · 2024: 15 · 2023: 13 · 2022: 13 · 2021: 14 · 2020: 17 · 2019: 18 · 2018: 11 · 2017: 18 · 2016: 24 · 2015: 11 · 2014: 10 · 2013: 13 · 2012: 17
FWCI
1.25
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Reviews Endocrinology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Vedecká Grantová Agentúra MŠVVaŠ SR a SAV
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Sexual Differentiation and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Metabolism and Genetic Disorders
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
Keywords
congenital adrenal hyperplasia, newborn screening, 21-hydroxylase deficiency, 17-hydroxyprogesterone, ACTH stimulation test, salt-wasting CAH, ambiguous genitalia, positive predictive value, cost-effectiveness, adrenal crisis, hyponatremia, hyperkalemia
MeSH terms
Adrenal Hyperplasia, Congenital, Electrolytes, Humans, Infant, Newborn, Neonatal Screening, 17-alpha-Hydroxyprogesterone

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