Hepatitis B virus in patients with chronic hepatitis C treated with direct antiviral agents

Insights

Hepatitis B virus (HBV) reactivation is common but not clinically relevant in hepatitis C virus (HCV) patients treated with direct-acting antivirals (DAAs). HBV screening rates are high in this population.

Area of Science:

  • Hepatology
  • Virology
  • Infectious Diseases

Background:

  • Direct-acting antiviral (DAA) treatment for hepatitis C virus (HCV) has raised concerns about potential hepatitis B virus (HBV) reactivation.
  • Understanding HBV/HCV coinfection and reactivation is crucial for patient management during DAA therapy.

Purpose of the Study:

  • To determine the prevalence of HBV/HCV coinfection and the incidence/clinical relevance of HBV reactivation in HCV patients treated with DAAs in Madrid.
  • To assess HBV screening rates among HCV patients in the region.

Main Methods:

  • A cohort of 1,337 HCV patients treated with DAAs between January 2015 and June 2017 in South Madrid was analyzed.
  • Prevalence of HBsAg positivity and previous HBV infection markers were recorded.
  • Incidence and clinical significance of HBV reactivation were monitored.

Main Results:

  • The prevalence of HBsAg positive HBV infection was low (0.67%).
  • Virological HBV reactivation occurred in 50% of HBsAg positive patients without prior treatment, but without biochemical relevance.
  • Patients with previous HBV infection markers showed normal transaminases throughout treatment and follow-up.
  • The HBV screening rate reached 92.9%.

Conclusions:

  • HBV prevalence is low in HCV patients in the studied area of Madrid.
  • HBV reactivation in HBsAg positive patients on DAAs is frequent but clinically insignificant.
  • High HBV screening rates are observed in HCV patients eligible for DAA treatment in this region.
Abstract

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