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Manifestations of chronic hepatitis C virus infection beyond the liver

Ira M Jacobson1, Patrice Cacoub, Luigino Dal Maso

  • 1Center for the Study of Hepatitis C, Joan and Sanford I. Weill Medical College of Cornell University, New York, New York 10021, USA. imj2001@med.cornell.edu

Clinical Gastroenterology and Hepatology : the Official Clinical Practice Journal of the American Gastroenterological Association
|September 28, 2010
PubMed

Insights

Chronic hepatitis C virus (HCV) infection impacts multiple organ systems beyond the liver, causing serious extrahepatic manifestations. Effective anti-HCV therapy can improve some of these conditions and quality of life.

Area of Science:

  • Hepatology
  • Immunology
  • Infectious Diseases

Background:

  • Chronic hepatitis C virus (HCV) infection is primarily known for liver disease but also significantly affects other organ systems.
  • Extrahepatic manifestations (EHMs) of HCV are diverse, including autoimmune conditions, metabolic disorders, and neurological impairments, reducing patient quality of life.
  • These EHMs increase the complexity and cost of managing HCV infection.

Purpose of the Study:

  • To review the spectrum of extrahepatic manifestations associated with chronic hepatitis C virus infection.
  • To discuss the impact of these manifestations on patient quality of life and disease management.
  • To highlight the role of HCV in the pathogenesis of certain EHMs and the potential benefits of anti-HCV therapy.

Main Methods:

  • Literature review of studies investigating extrahepatic manifestations of hepatitis C virus.
  • Analysis of clinical data on the impact of HCV on various organ systems and quality of life.
  • Evaluation of treatment outcomes for HCV and its associated extrahepatic conditions.

Main Results:

  • HCV infection is linked to mixed cryoglobulinemia vasculitis, lymphoproliferative disorders, renal disease, insulin resistance, type 2 diabetes, sicca syndrome, and rheumatoid arthritis-like polyarthritis.
  • Quality of life is diminished by fatigue, depression, and cognitive impairment in HCV patients.
  • Mixed cryoglobulinemia vasculitis, certain lymphomas, insulin resistance, and cognitive dysfunction show improvement with anti-HCV therapy.

Conclusions:

  • Hepatitis C virus plays a role in the pathogenesis of specific extrahepatic manifestations like mixed cryoglobulinemia vasculitis, certain lymphomas, and insulin resistance.
  • Anti-HCV therapy can positively impact certain extrahepatic manifestations and improve cognitive function and quality of life.
  • Awareness of potential extrahepatic manifestations is crucial for clinicians to effectively manage patients with HCV infection.

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