Longitudinal change of liver stiffness by transient elestography in chronic hepatitis B patients treated with nucleos(t)ide analogue.
2014
Summary Background Liver stiffness measurement (LSM) by transient elastography is a non-invasive method to assess liver fibrosis. Decline in LSM value has been reported after antiviral treatment (AVT) using nucleos(t)ide analogues (NUCs) in chronic hepatitis B (CHB) patients, however, factors associated with changes in LSM during AVT remains unclear. Methods A total of 76 CHB patients who received AVT with NUCs and had serial LSM (median duration: 16 months, range: 12 to 35 months) during AVT were analyzed. Complete virological response (CVR) was defined when hepatitis B virus DNA level was undetectable by real-time PCR assay ( Results LSM value had significantly decreased after AVT with NUCs [median (quartile): 6.5 (4.7–9.2) to 5.3 (3.9–6.7), P P = 0.02]. The annual LSM change was significantly different between those who achieved and did not achieve CVR (median change: −1.08/year vs. 0.26/year, P vs. 35% (8/23), P Conclusions A significant decrease in LSM value was observed in CHB patients after AVT with NUCs. Achievement of CVR was significant factor associated with change in LSM value. Achieving CVR might be a key to decrease LSM value during AVT with NUCs.
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