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Background : Assessment of liver disease severity in chronic Hepatitis C (CHC) is essential both in pre-treatment and post-treatment period. We assessed the impact of direct-acting antiviral therapy on liver stiffness regression measured by Vibration Controlled Transient Elastography (VCTE) in patients with CHC and evaluated the diagnostic performance of the APRI and FIB-4 scores compared to VCTE in detecting advanced fibrosis and cirrhosis (F3/F4).Methodology : Retrospective analysis of consecutive patients with CHC who underwent VCTE before and after DAA therapy was done. APRI and FIB-4 scores were compared to VCTE.Results : 88 (56.78%) patients-12 (F3) and 76 (F4) according to VCTE, had advanced fibrosis pre-treatment, which reduced to 69 (44.52%) - 10 (F3) and 59 (F4) after 12 weeks DAA therapy. Significant reduction in VCTE value from 14.08 ± 9.05 KPa to 11.84 ± 8.31 KPa (p=0.002) was noted. There is significant reduction in APRI, FIB-4 and GUCI score post-treatment which was not the case with Lok score and Bonacini score. Before therapy, FIB-4 outperformed others to predict advanced fibrosis with score &gt;2.13 (AUC 0.93), having sensitivity 76%, specificity 96% and accuracy 86%. However post-treatment, APRI and GUCI score performed best to predict F3/F4 fibrosis with score &gt;0.63 (AUC 0.97) and &gt;0.64 (AUC 0.96), having sensitivity, specificity and accuracy of 85%, 96.6% and 92% ; 85%, 96.6% and 92% respectively.Conclusion : Before therapy, FIB-4 had the best accuracy in predicting advanced fibrosis whereas APRI and GUCI score were the best indices post-treatment.

Serum biomarkers as an alternative to vibration controlled transient elastography in liver fibrosis staging in chronic hepatitis C