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Updated: Nov 4, 2025

Author Spotlight: Advancements and Challenges in Hepatitis B Virus Detection
Published on: December 15, 2023
Chronic Hepatitis Is Common and Often Untreated Among Children with Hepatitis B Infection in the United States and
Simon C Ling1, Hsing-Hua S Lin2, Karen F Murray3
1Department of Paediatrics, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada.
Insights
Chronic hepatitis B virus (HBV) infection in children often shows active hepatitis, but severe outcomes like cirrhosis or cancer are rare. Many children meeting treatment criteria for HBV were not treated.
Area of Science:
- Hepatology
- Pediatric Gastroenterology
- Virology
Background:
- Chronic hepatitis B virus (HBV) infection affects children globally.
- Long-term outcomes in pediatric HBV cohorts in North America are not well-defined.
Purpose of the Study:
- To determine the clinical outcomes of chronic HBV infection in a large, prospective cohort of children in the US and Canada.
- To assess the progression and management of pediatric chronic HBV.
Main Methods:
- Prospective, observational study of 362 children with chronic HBV across 7 clinical centers.
- Data collected at baseline, 24, 48 weeks, and annually, including demographics, clinical data, and blood tests.
- Analysis of alanine aminotransferase (ALT) levels, hepatitis B e antigen status, and treatment initiation.
Main Results:
- Elevated ALT levels were observed in 72% of children at the last evaluation.
- Significant ALT flares occurred in 13 children.
- Only 25 out of 129 children meeting treatment criteria initiated anti-HBV therapy.
- One death (unrelated to liver disease) and one case of cirrhosis were reported; no cirrhotic decompensation or hepatocellular carcinoma observed.
Conclusions:
- Many children with chronic HBV in the US and Canada exhibit active hepatitis, posing a risk for progressive liver disease.
- Major adverse liver-related outcomes were infrequent in this cohort.
- A significant gap exists in treatment initiation for children meeting established criteria for anti-HBV therapy.
Objective:
To determine the outcomes of chronic hepatitis B virus (HBV) infection in a large, prospectively studied cohort of children in the US and Canada.
Study Design:
This was a prospective, observational study of children with chronic HBV enrolled in 7 clinical centers and evaluated at baseline, weeks 24 and 48, and annually thereafter, with analysis of demographic, clinical, physical examination, and blood test data.
Results:
Among 362 children followed for a median of 4.2 years, elevated alanine aminotransferase (ALT) levels (>1 upper limit of normal) were present in 72% at last evaluation, including in 60% of children with loss of hepatitis B e antigen during follow-up and 70% of those who were hepatitis B e antigen negative at baseline. Significant ALT flares (male patients ≥400 U/L, female patients ≥350 U/L) occurred in 13 children. Of 129 children who fulfilled the American Association for the Study of Liver Diseases treatment criteria during follow-up, anti-HBV treatment was initiated in only 25. One child died (unrelated to liver disease), 1 developed cirrhosis, but no episodes of cirrhotic decompensation or hepatocellular carcinoma were observed. Decline in platelet count was inversely associated with ALT elevations.
Conclusions:
In a cohort of children with chronic HBV infection in the US and Canada, many children remained at risk of progressive liver disease due to active hepatitis, but major clinical outcomes such as cirrhosis, cancer, and death were rare. Many children who met criteria for treatment remained untreated.
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