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Related Experiment Videos

Population screening for neonatal liver disease: a feasibility study

S Keffler1, D A Kelly, J E Powell

  • 1Department of Clinical Chemistry, Birmingham Children's Hospital NHS Trust, United Kingdom.

Journal of Pediatric Gastroenterology and Nutrition
|September 18, 1998
PubMed
Summary

Screening for neonatal liver disease can be improved by measuring conjugated bilirubin levels. This approach may lead to earlier diagnosis and better outcomes for infants with prolonged jaundice.

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Area of Science:

  • Neonatal Medicine
  • Clinical Chemistry
  • Pediatric Gastroenterology

Background:

  • Neonatal liver diseases, such as extra-hepatic biliary atresia, have high mortality rates if not treated early.
  • Delayed referral of jaundiced infants is a persistent issue despite recommendations.
  • Population screening for conjugated hyperbilirubinemia can aid early detection of liver dysfunction.

Purpose of the Study:

  • To investigate the utility of conjugated bilirubin as a screening marker for neonatal liver dysfunction.
  • To establish reference ranges for bilirubin fractions in a normal newborn population.

Main Methods:

  • Anonymously tested 1157 neonates (median age 7 days) using surplus plasma from routine screening specimens.
  • Utilized dry slide chemistry for bilirubin and its conjugated/unconjugated fractions analysis.

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  • Assessed specimen suitability, with 50% being adequate for analysis.

    • Main Results:

    • Total bilirubin ranged from 9-428 micromol/l; conjugated bilirubin ranged from 0-175 micromol/l.
    • Conjugated bilirubin rarely exceeded 30 micromol/l (2.5th-97.5th percentile: 0-18 micromol/l).
    • Percentage of conjugated bilirubin ranged from 0-57% (2.5th-97.5th percentile: 0-20%).

    Conclusions:

    • Elevated conjugated bilirubin concentration or percentage can serve as a specific marker for neonatal liver dysfunction.
    • This screening method has the potential to reduce referral age and improve prognosis for affected infants.
    • Early identification of liver dysfunction through bilirubin screening can significantly impact infant health outcomes.