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Updated: Dec 20, 2025
Determining Bile Duct Density in the Mouse Liver
Published on: April 30, 2019
Development and validation of bile acid profile-based scoring system for identification of biliary atresia: a
Dongying Zhao1, Kejun Zhou2, Yan Chen1
1Department of Neonatology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, 1665 Kong Jiang Road, Shanghai, 200092, China.
Insights
A new scoring system using bile acids accurately identifies biliary atresia in infants with cholestasis. This simple tool aids early diagnosis, improving outcomes for this serious liver condition.
Area of Science:
- Pediatric Gastroenterology
- Hepatology
- Diagnostic Biomarkers
Background:
- Distinguishing biliary atresia from other causes of infantile cholestasis is clinically challenging.
- Early diagnosis of biliary atresia is crucial for effective treatment and improved patient outcomes.
- Current diagnostic methods may lack sufficient accuracy or accessibility.
Purpose of the Study:
- To develop and validate a novel scoring system for the early identification of biliary atresia.
- To utilize bile acid profiles as a key component in the diagnostic scoring system.
- To improve the diagnostic accuracy for biliary atresia in infants presenting with cholestasis.
Main Methods:
- A prospective study enrolled 141 infants with cholestasis, divided into derivation (n=66) and validation (n=75) cohorts.
- Key variables differentiating biliary atresia from non-biliary atresia were identified in the derivation cohort.
- A scoring system incorporating glycochenodeoxycholic acid/chenodeoxycholic acid ratio, clay stool, and gamma-glutamyl transferase was developed and validated.
Main Results:
- The scoring system, ranging from 0 to 41, identified biliary atresia with high accuracy.
- A cutoff score of 15 demonstrated an area under the ROC curve of 0.87, with 85.3% sensitivity and 81.3% specificity in the derivation cohort.
- Validation in a separate cohort confirmed the system's diagnostic performance with 90.0% sensitivity and 80.0% specificity.
Conclusions:
- The developed scoring system offers a simple yet accurate method for assessing the risk of biliary atresia in cholestatic infants.
- This bile acid-based scoring system can aid clinicians in the early and reliable diagnosis of biliary atresia.
- The findings support the clinical utility of this scoring system in pediatric hepatology practice.
Background:
Early distinguishing biliary atresia from other causes of infantile cholestasis remains a major challenge. We aimed to develop and validate a scoring system based on bile acid for identification of biliary atresia.
Methods:
In a prospective study, a total of 141 infants with cholestasis were enrolled in two sets (derivation cohort, n = 66; validation cohort, n = 75) from 2014 to 2018. Variables with significant difference between biliary atresia and non-biliary atresia infants were selected in the derivation cohort. Then, a scoring system including those variables was designed and validated.
Results:
Among 66 patients in the derivation cohort, 34 (51.5%) had biliary atresia. A scoring system was proposed with the following variables: glycochenodeoxycholic acid/chenodeoxycholic acid, clay stool, and gamma-glutamyl transferase. The total score ranged from 0 to 41, and a cutoff value of 15 identified biliary atresia with an area under receiver operating characteristic curve of 0.87 (95% confidence interval, 0.77-0.94), sensitivity of 85.3%, and specificity of 81.3% in the derivation cohort; these values were also confirmed in a validation cohort with a sensitivity of 90.0% and specificity of 80.0%.
Conclusions:
The proposed simple scoring system had good diagnostic accuracy for estimating the risk of biliary atresia in infants with cholestasis.
