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A Protocol for Analyzing Hepatitis C Virus Replication
Published on: June 26, 2014
Tests and screening strategies for the diagnosis of hepatitis C
1Department of Gastroenterology and Hepatology, Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA. careyw@ccf.org
Insights
Testing for hepatitis C virus (HCV) should be readily available for individuals with any HCV risk factors. Early viral RNA testing and genotyping are crucial for diagnosing active infection and guiding effective antiviral therapy.
Area of Science:
- Hepatology
- Virology
- Infectious Diseases
Background:
- Hepatitis C virus (HCV) infection requires timely diagnosis and management.
- Current diagnostic guidelines involve antibody screening followed by RNA testing.
Purpose of the Study:
- To outline optimal screening and diagnostic strategies for hepatitis C virus (HCV) infection.
- To emphasize the importance of risk factor-guided testing and early viral detection.
Main Methods:
- Review of current practices in HCV testing.
- Discussion of serological and molecular diagnostic assays for HCV.
- Consideration of HCV genotyping and liver biopsy for disease management.
Main Results:
- HCV RNA testing is essential for differentiating active from resolved infections and determining viral load.
- HCV genotyping aids in predicting treatment outcomes and duration.
- Liver biopsy provides valuable information for disease staging and treatment decisions.
Conclusions:
- A low threshold for HCV testing is recommended for individuals with identified risk factors.
- Integrated screening strategies incorporating risk assessment, viral RNA detection, genotyping, and potentially liver biopsy improve patient outcomes.
Abstract:
The threshold for testing for hepatitis C virus (HCV) should be low for persons with any risk factor for HCV infection. Current practice calls for first screening for antibodies to HCV and then testing for HCV RNA in those in whom antibodies are detected. Viral testing can distinguish between active and resolved HCV infection and also determine viral load, which can help predict response to antiviral therapy. Many highly sensitive assays are available for testing for HCV RNA. Once HCV infection is diagnosed, the HCV genotype should be determined to help predict treatment response and duration. Liver biopsy can aid in disease staging and help guide treatment decisions. Practical and efficient screening strategies for HCV are guided by risk factors for HCV infection.
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