Abstract
Hepatitis C virus (HCV) infection is associated with a variable disease course and response to therapy. Some infected patients may develop little or no disease for 30 to 40 years, whereas others will develop cirrhosis within 5 to 10 years. Both host and viral factors influence the rate of disease progression. The management of patients is determined by the severity of their disease assessed by liver biopsy. Those with mild hepatitis without fibrosis do not require treatment but should undergo liver biopsy every 3 years. Patients with mild hepatitis with fibrosis, or with moderate or severe hepatitis with or without fibrosis, should be offered treatment. Interferon-alpha (IFN alpha) is currently the only licensed treatment for HCV infection. Although initial response rates to IFN alpha are high, over half the patients relapse and a sustained response is achieved in only 10 to 35% of patients. Higher doses of IFN alpha and a longer treatment duration are associated with better response rates. Treatment options for those who fail to respond to IFN alpha include a second course of IFN alpha at a higher dose or IFN alpha in combination with ribavirin, phlebotomy or ursodeoxycholic acid. At present, however, there are insufficient data to routinely recommend any of these options.
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