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Hepatitis C reactivation in patients with chronic infection with genotypes 1b and 2c: a retrospective cohort study of 206 untreated patients.

M G Rumi1, F De Filippi, C La Vecchia

  • 1AM&A Migliavacca Centre for the Study of Liver Disease and Department of Gastroenterology and Endocrinology, IRCCS Maggiore Hospital and University of Milan, Milan, Italy.

Gut
|February 16, 2005

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View abstract on PubMed

Summary

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  • Biomedical And Clinical Sciences
  • Oncology And Carcinogenesis
  • Predictive And Prognostic Markers
  • Hepatitis C Reactivation In Patients With Chronic Infection With Genotypes 1b And 2c: A Retrospective Cohort Study Of 206 Untreated Patients.
    • This summary is machine-generated.

    Hepatitis C virus (HCV) genotype 2c carriers face a significantly higher risk of hepatitis reactivation compared to genotype 1b. This finding highlights the importance of viral genetic diversity in HCV

    Area of Science:

    • Hepatology
    • Virology
    • Gastroenterology

    Background:

    • Previous observations noted hepatitis reactivation in two hepatitis C virus (HCV) genotype 2c carriers.
    • HCV infection poses a significant global health challenge, with varying clinical outcomes influenced by viral genotype.

    Purpose of the Study:

    • To investigate the association between specific HCV genotypes and the risk of hepatitis reactivation.
    • To compare the incidence of aminotransferase flares in patients with chronic hepatitis C genotypes 2c and 1b.

    Main Methods:

    • A surveillance study was conducted on 100 patients with chronic hepatitis C genotype 2c and 106 patients with genotype 1b.
    • Hepatitis reactivation was defined by elevated alanine aminotransferase (ALT) levels or a high maximum/minimum ALT ratio.
    • Hepatic fibrosis progression was assessed via repeat liver biopsy.

    Main Results:

    • Hepatitis flares occurred more frequently in genotype 2c patients (55.6 per 1000 person-years) than in genotype 1b patients (15.0 per 1000 person-years; p=0.001).
    • Genotype 2c was significantly associated with hepatitis flares (odds ratio 6.48).
    • Increased hepatic fibrosis was observed in 63% of patients experiencing flares versus 19% of flare-free patients (p=0.003).

    Conclusions:

    • HCV genotype 2c carriers exhibit a substantially elevated risk of hepatitis reactivation.
    • Viral genetic heterogeneity plays a crucial role in the natural progression of HCV infection.
    • The study questions the assumption of linear hepatic fibrosis progression in hepatitis C.

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