Management of patients with chronic hepatitis C infection

Area of Science:

• Hepatology
• Infectious Diseases
• Public Health

Background:

• Chronic hepatitis C virus (HCV) infection is a major global cause of liver disease and mortality.
• HCV transmission occurs primarily through injection drug use in developed nations and unsafe injections in developing countries.
• Long-term infection can lead to cirrhosis and hepatocellular carcinoma.

Purpose of the Study:

• To review the global prevalence, transmission, and clinical outcomes of chronic HCV infection.
• To discuss current screening recommendations and diagnostic methods for HCV.
• To evaluate the efficacy of current antiviral therapies and identify factors influencing treatment response.

Main Methods:

• Review of existing literature on HCV prevalence, transmission routes, and disease progression.
• Analysis of diagnostic tools, including antibody testing, HCV RNA quantification, and genotyping.
• Assessment of treatment outcomes for peginterferon and ribavirin therapy.

Main Results:

• HCV prevalence is increasing, with injection drug use being a primary transmission source.
• Chronic infection affects the majority of exposed individuals, with 50% developing liver injury.
• Current standard therapy (peginterferon/ribavirin) achieves sustained virologic response (SVR) in 54%-56%, with higher rates for genotypes 2 and 3.

Conclusions:

• HCV infection remains a significant global health challenge requiring enhanced prevention strategies, particularly targeting high-risk populations.
• Screening recommendations are inconsistent, and further research into noninvasive diagnostic methods is needed.
• While current treatments show moderate efficacy, higher SVR rates are observed in specific patient groups, indicating a need for more effective therapies.