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Occult hepatitis B.

Michael Torbenson1, David L Thomas

  • 1Department of Pathology, Division of Gastrointestinal and Hepatic Pathology, Johns Hopkins Hospital, Baltimore, MD, USA.

The Lancet. Infectious Diseases
|August 2, 2002
PubMed
Summary
This summary is machine-generated.

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Occult hepatitis B, identified by sensitive DNA testing in patients negative for standard hepatitis B surface antigen, poses significant health risks. Increased awareness and testing are crucial for managing this condition, especially in co-infected individuals.

Area of Science:

  • Hepatology
  • Virology
  • Infectious Diseases

Background:

  • Chronic hepatitis B virus (HBV) infection is a major global cause of liver cirrhosis, hepatocellular carcinoma, and mortality.
  • Traditional diagnosis relies on detecting HBV antigens and antibodies.
  • A subset of chronic HBV infections, termed occult hepatitis B, is characterized by detectable HBV DNA but negative hepatitis B surface antigen (HBsAg).

Purpose of the Study:

  • To review the clinical significance and diagnostic approaches for occult hepatitis B.
  • To examine the specific context of occult hepatitis B in patients co-infected with hepatitis C virus (HCV).

Main Methods:

  • Literature review focusing on studies identifying occult hepatitis B using molecular testing (HBV DNA).
  • Analysis of clinical settings where occult hepatitis B is prevalent.

Related Experiment Videos

  • Examination of outcomes in HBV/HCV co-infected patients with occult hepatitis B.

    • Main Results:

    • Occult hepatitis B is detected through sensitive molecular assays for HBV DNA in HBsAg-negative individuals.
    • In HBV/HCV co-infected patients, occult hepatitis B is linked to advanced liver fibrosis.
    • Occult hepatitis B in co-infected patients is associated with a reduced response to interferon alpha therapy.

    Conclusions:

    • Occult hepatitis B represents an important, often undetected, clinical entity.
    • Heightened awareness of occult hepatitis B and its diagnostic methods is medically warranted.
    • Further research is necessary to fully understand and manage occult hepatitis B, particularly in co-infected populations.