الفهرس 
HCV I NFECTIONOnly 14 pages are availabe for public view
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Abstract
Background: Occult infection with hepatitis C virus (HCV) is defined as the presence of the HCV genome in either liver tissue or peripheral blood monocytes, despite constant negative results from tests for HCV RNA in serum.
Objectives: The aim of the study to detect the prevalence of occult hepatitis C Virus infection in patients who achieved a sustained virologic response (SVR) to direct-acting antiviral agents and to outline predictors of OCI.
Patients and Methods: This study included 100 patients with chronic HCV infection without liver cirrhosis attending to hepatitis C clinics at Ain Shams University Hospital, Ahmed Maher Teaching hospital and Elgomhorya Teaching Hospital.who received sofosbuvir (400mg) plus daclatasvir (60mg) daily for 12 weeks with or without ribavirin according to National committee to combat viral hepatitis (NCCVH) protocol.
Results: We tested peripheral blood for HCV RNA in PBMCs to detect OCI. Occult HCV was found positive in 12 % of the studied cases. Occult HCV was positive more in male cases. Positive cases had significantly lower age, and higher total bilirubin, direct bilirubin, AST and ALT levels. Age had significant moderate diagnostic performance in predicting occult HCV, while direct bilirubin has significant low diagnostic performance in predicting occult HCV.
Conclusion: OCI following direct antiviral therapy may be present in some cases, and this may require further testing of patients with SVR particularly in younger male patients with persistantly high liver enzymes.