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Updated: Apr 26, 2026

"Liver-on-a-Chip" Cultures of Primary Hepatocytes and Kupffer Cells for Hepatitis B Virus Infection
Published on: February 19, 2019
[Characterization of patients with chronic hepatitis B virus infection without indication for treatment]
1Unidad de Hepatología, CIBERehd, Servicio de Aparato Digestivo, Hospital Germans Trias i Pujol, Badalona, Barcelona, España.
Insights
Hepatitis B virus (HBV) infection management has gray areas. Treatment may be considered for healthcare workers and pregnant women, and for inactive carriers with cirrhosis or high viral loads.
Area of Science:
- Hepatology
- Virology
- Immunology
Context:
- Chronic Hepatitis B Virus (HBV) infection involves complex interactions between viral replication and host immunity.
- Current European guidelines suggest no treatment for immune-tolerant and inactive carrier phases of chronic HBV.
- Certain 'gray areas' within these phases present challenges in patient categorization and treatment decisions.
Purpose:
- To identify specific scenarios within the immune-tolerant and inactive carrier phases where HBV treatment initiation may be warranted.
- To refine clinical decision-making for chronic HBV management beyond standard guidelines.
Summary:
- Treatment for immune-tolerant HBV may be indicated for healthcare professionals performing invasive procedures.
- Antiviral therapy during the third trimester of pregnancy is recommended for HBeAg-positive, normal ALT, high HBV DNA pregnant women to prevent vertical transmission.
- For inactive carriers (HBeAg-negative, normal ALT, HBV DNA ≥ 2000 IU/mL), treatment indication depends on hepatic lesion severity; cirrhosis necessitates treatment if HBV DNA is detectable.
Impact:
- Provides nuanced guidance for managing chronic HBV in specific patient populations.
- Aims to optimize treatment strategies, reduce vertical transmission, and prevent disease progression.
- Supports clinical decision-making in complex chronic HBV infection cases.
Abstract:
Chronic infection by the hepatitis B virus (HBV) is a dynamic process that results from the interaction between HBV replication and the host's immune response. In accordance with the consensus document of the European Association for the Study of the Liver, treatment is not indicated for the immune tolerant and inactive carrier phases. However, there are situations in the 2 phases (which we could call gray areas of chronic HBV infection) in which the correct categorization of patients is not easy and in which the start of treatment can be proposed. In the immune tolerant phase, treatment could be indicated for health professionals whose responsibilities require their participation in invasive procedures. Treatment could also be indicated for pregnant women who are HBeAg-positive, ALT normal and have high HBV DNA values and for whom oral antiviral treatment is indicated during the last trimester of pregnancy to reduce the risk of vertical HBV transmission from mother to child. For patients in the inactive carrier phase who are HBeAg-negative with persistent normal ALT levels and HBV DNA ≥ 2000 IU/mL, the intensity of the hepatic lesion will determine the indication for treatment. If these patients already have established cirrhosis then treatment is indicated if the HBV DNA is detectable, regardless of the ALT level.
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