Related Experiment Video

Updated: Jun 17, 2026

Extrahepatic Bile Duct and Gall Bladder Dissection in Nine-Day-Old Mouse Neonates
06:10

Extrahepatic Bile Duct and Gall Bladder Dissection in Nine-Day-Old Mouse Neonates

Published on: August 23, 2022

Implication of early-onset biliary atresia and extrahepatic congenital anomalies

Ming-Chun Yang1, Mei-Hwei Chang, Shuenn-Nan Chiu

  • 1Children's Hospital, National Taiwan University, Taipei, Taiwan.

Pediatrics International : Official Journal of the Japan Pediatric Society
|December 17, 2009
PubMed

Insights

Early-onset biliary atresia (BA), diagnosed before two weeks, affects 23.8% of infants in Taiwan. This group shows a higher incidence of extrahepatic anomalies, suggesting embryonic origins for some BA cases.

Area of Science:

  • Pediatric Gastroenterology
  • Neonatal Surgery
  • Developmental Biology

Background:

  • Biliary atresia (BA) is a rare but serious neonatal liver disease.
  • Taiwan has a high prevalence of BA, making it a key location for research.
  • Understanding early-onset BA is crucial for identifying potential embryonic origins and associated anomalies.

Purpose of the Study:

  • To determine the incidence of early-onset biliary atresia (BA) in Taiwan.
  • To investigate the association between the timing of BA onset and congenital extrahepatic anomalies.
  • To identify potential indicators of embryonic-type BA.

Main Methods:

  • Retrospective review of medical records for 130 infants diagnosed with BA between 1996 and 2005.
  • Intraoperative cholangiography used as the gold standard for BA diagnosis.
  • Abdominal imaging and echocardiograms performed to identify structural anomalies; early-onset BA defined as symptoms before 2 weeks of age.

Main Results:

  • 23.8% of infants presented with early-onset BA (symptoms before 2 weeks).
  • 15.4% of all BA patients had major congenital extrahepatic anomalies.
  • Early-onset BA patients had a significantly higher probability of associated extrahepatic anomalies (P=0.046), including specific GI tract and situs anomalies.

Conclusions:

  • Early-onset BA, representing 23.8% of cases, is strongly associated with congenital extrahepatic anomalies.
  • The presence of situs anomalies alongside major gastrointestinal anomalies may indicate an embryonic-type early-onset BA.
  • While biliary atresia splenic malformation syndrome (BASM) is rare, early detection of associated anomalies is key for management.
Abstract

Related Concept Videos

Diseases of the Liver and Gallbladder01:26

Diseases of the Liver and Gallbladder

Liver and gallbladder diseases are a significant health concern, with prominent conditions including cirrhosis, hepatitis, non-alcoholic fatty liver disease (NAFLD), and gallstones. Jaundice is a common manifestation of liver and biliary disease.
Cirrhosis is characterized by the scarring of hepatic lobules in the liver, which are replaced by fibrous tissue, affecting the liver's normal functioning. NAFLD, on the other hand, is caused by an excessive build-up of fat in the liver, not related to...
Cholecystitis01:20

Cholecystitis

Cholecystitis is inflammation of the gallbladder, most commonly caused by obstruction of the cystic duct. This blockage prevents bile from draining, leading to gallbladder distension, inflammation, and potentially serious complications. This condition may present acutely or chronically and can happen with or without gallstones.EtiologyAbout 95% of cholecystitis cases are calculous, caused by gallstones blocking the cystic duct, leading to bile accumulation and inflammation of the gallbladder...
Chronic Bowel Disorders: Introduction01:17

Chronic Bowel Disorders: Introduction

Chronic bowel diseases are a group of long-term conditions affecting the digestive tract, characterized by inflammation and damage to the gut lining. These conditions primarily include irritable bowel syndrome and inflammatory bowel disease.
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
Inborn Errors of Metabolism01:20

Inborn Errors of Metabolism

Phenylketonuria (PKU) is a protein metabolism disorder characterized by high blood levels of the amino acid phenylalanine. This results from a mutation in the gene responsible for phenylalanine hydroxylase, an enzyme that converts phenylalanine into tyrosine. When this enzyme is deficient, phenylalanine builds up in the blood, leading to symptoms such as vomiting, rashes, seizures, growth deficiency, and severe mental retardation. An early diagnosis and a diet restricting phenylalanine intake...
Appendicitis-I: Introduction01:22

Appendicitis-I: Introduction

The appendix, a small, narrow, blind tube extending from the inferior part of the cecum, is widely regarded as a vestigial organ, having lost much of its original function through evolution. Despite its diminished role, the appendix can become inflamed, a condition known as appendicitis.
Etiology: Appendicitis can arise from various causes, primarily rooted in the obstruction of the appendix lumen. Factors contributing to this obstruction include fecal accumulation, lymphoid hyperplasia and, in...