What is the onset and progression of hepatitis C virus (hep C) infection?

Updated: Oct 07, 2019
  • Author: Vinod K Dhawan, MD, FACP, FRCPC, FIDSA; Chief Editor: BS Anand, MD  more...
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Answer

Most patients with acute and chronic infection are asymptomatic. Patients and healthcare providers may detect no indications of these conditions for long periods; however, chronic hepatitis C infection and chronic active hepatitis are slowly progressive diseases and result in severe morbidity in 20-30% of infected persons. Astute observation and integration of findings of extrahepatic symptoms, signs, and disease are often the first clues to the underlying HCV infection. [11]

Although acute HCV infection is usually mild, chronic hepatitis develops in at least 75% of patients. [12] (See Prognosis.) Although liver enzyme levels may be in the reference range, the presence of persistent HCV-RNA levels discloses chronic infection. Biopsy samples of the liver may reveal chronic liver disease. Cirrhosis develops in 20-50% of patients with chronic hepatitis C infection. Liver failure and HCC (11%-19%) can eventually result.


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