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Acute viral hepatitis: aetiology and evolution.

C B Chow1, T T Lau, N K Leung

  • 1Paediatric A Unit, Princess Margaret Hospital, Hong Kong.

Archives of Disease in Childhood
|February 1, 1989
PubMed
Summary

Hepatitis A is the most common acute hepatitis in children, with most recovering fully. While Hepatitis B and non-A, non-B hepatitis are less common, they carry a higher risk of severe outcomes and mortality.

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Area of Science:

  • Pediatrics
  • Infectious Diseases
  • Hepatology

Background:

  • Acute hepatitis in children presents a significant public health challenge.
  • Understanding the etiological agents and outcomes is crucial for effective management.
  • Hepatitis A, B, and non-A, non-B viruses are primary concerns in pediatric hepatitis.

Purpose of the Study:

  • To investigate the prevalence and etiological spectrum of acute hepatitis in a pediatric cohort.
  • To analyze the clinical outcomes and recovery rates associated with different hepatitis types.
  • To assess the course of Hepatitis B infection, including antigen clearance and antibody development.

Main Methods:

  • A prospective study of 348 consecutive children diagnosed with acute hepatitis over 3.5 years.
  • Categorization of hepatitis based on etiological testing (Hepatitis A, B, non-A, non-B).
  • Monitoring of clinical recovery, mortality, and Hepatitis B surface antigen clearance.

Main Results:

  • Hepatitis A was the predominant cause (81%), particularly in younger children.
  • Hepatitis B accounted for 8% and non-A, non-B for 10% of cases.
  • Recovery rates were high for Hepatitis A and B, but three deaths occurred from fulminant hepatitis (one B, two non-A, non-B).
  • Hepatitis B surface antigen was cleared rapidly in most cases, with high antibody seroconversion.
  • One child became a Hepatitis B carrier.

Conclusions:

  • Hepatitis A is the most frequent cause of acute hepatitis in children, generally associated with a favorable prognosis.
  • While less common, Hepatitis B and non-A, non-B hepatitis pose a greater risk of severe disease and mortality.
  • Prompt clearance of Hepatitis B surface antigen and development of antibodies are typical, though carrier state is possible.

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