EARLY NONINVASIVE EVALUATION OF LIVER FIBROSIS AFTER HEPATITIS C TREATMENT: THE IMPACT OF INFLAMMATION

Area of Science:

• Hepatology
• Medical Imaging
• Virology

Background:

• Liver biopsy (LB) is the gold standard for assessing hepatic fibrosis (HF) and inflammation.
• Noninvasive techniques like Acoustic Radiation Force Impulse (ARFI) elastography are emerging alternatives to LB.
• There is ongoing debate regarding the optimal timing for ARFI elastography post-hepatitis C virus (HCV) treatment.

Purpose of the Study:

• To evaluate hepatic fibrosis using ARFI technology.
• To assess changes in ARFI values before and after successive treatments for chronic HCV.

Main Methods:

• Prospective study of 50 adult patients with chronic HCV (genotype 1).
• Patients received initial triple therapy with first-generation protease inhibitors (boceprevir/telaprevir).
• Non-responders were re-treated with interferon-free direct-acting antiviral agents (DDAs).
• ARFI elastography was performed before and after each treatment course.

Main Results:

• ARFI values significantly decreased after both initial and re-treatment.
• Patients achieving sustained virological response (SVR) showed reduced ARFI values.
• Non-responders also exhibited ARFI reduction post-treatment, with values increasing again before re-treatment.
• AST and ALT levels correlated directly with ARFI elastography findings.

Conclusions:

• ARFI elastography can monitor treatment response in chronic HCV.
• Observed reductions in ARFI parameters appear linked to decreased liver inflammation.
• The findings suggest ARFI may reflect inflammatory changes more than direct fibrosis regression post-HCV treatment.