Non-invasive simple predictors of biliary atresia in cholestatic infants - A preliminary report

Yu-Hsueh Hsiao1, Wei-Li Hung2, Yao-Jong Yang3

  • 1Departments of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan.

PubMed

Insights

A simple non-invasive test, GGT*D-bil, can help diagnose biliary atresia (BA) in infants with cholestasis. A GGT*D-bil level above 510 mg*U/dL.L shows high accuracy in identifying BA, aiding early diagnosis.

Area of Science:

  • Pediatric Gastroenterology
  • Neonatal Hepatology
  • Diagnostic Biomarkers

Background:

  • Biliary atresia (BA) and other infantile cholestatic liver diseases present with similar clinical signs.
  • Accurate and timely differential diagnosis is crucial for optimal infant outcomes.
  • Non-invasive diagnostic tools are needed to aid clinicians in distinguishing BA.

Purpose of the Study:

  • To evaluate the utility of non-invasive parameters in differentiating BA from other cholestatic liver diseases in infants.
  • To identify an easily applicable biochemical marker for BA diagnosis.

Main Methods:

  • A retrospective cross-sectional study involving 145 infants in a primary cohort and 27 in a validation cohort.
  • Analysis of clinical data and laboratory tests, focusing on the "GGT*D-bil" parameter.
  • Receiver operating characteristic (ROC) curve analysis to determine the optimal cutoff value.

Main Results:

  • The "GGT*D-bil" parameter was significantly elevated in infants with BA compared to non-BA cholestatic infants (p < 0.001).
  • An optimal cutoff of "GGT*D-bil" > 510 mg*U/dL.L demonstrated high predictive value (92% AUC) in the study cohort.
  • This cutoff achieved 100% sensitivity and high negative predictive value (NPV) in the study cohort, and good sensitivity (92.31%) and NPV (90.91%) in the validation cohort.

Conclusions:

  • The "GGT*D-bil" parameter serves as a valuable, non-invasive tool to assist in the diagnosis of BA in cholestatic infants.
  • This simple biochemical marker can be readily integrated into routine cholestatic workups, regardless of hospital resources.
  • Early and accurate diagnosis of BA using "GGT*D-bil" can facilitate prompt treatment and improve infant prognosis.
Abstract