Abstract
A subcirrhotic range of liver stiffness (sc-LS), assessed by transient elastography, is associated with better outcomes in patients with chronic hepatitis B (CHB). We investigated whether the achievement of sc-LS by antiviral therapy (AVT) reduced the risk of developing hepatocellular carcinoma (HCC) in patients with CHB-related advanced fibrosis or cirrhosis. In total, 209 patients with CHB-related advanced fibrosis or cirrhosis, who received paired transient elastography examinations during AVT between 2007 and 2012, were enrolled. The cut-off LS value for ultrasonographic cirrhosis was defined as 11.6kPa. The median age of the study population was 51years, with males predominating (n=138, 66.0%). The median LS value at enrollment was 14.1kPa (interquartile range: 9.5-24.1kPa). After 2years of AVT, 140 (67.0%) patients achieved sc-LS. During the study period, 28 (13.4%) patients developed HCC after 2years of AVT. On multivariate analysis, the achievement of sc-LS after AVT was independently associated with a decreased risk of HCC development (hazard ratio [HR]=0.485, P=0.047), whereas older age (HR=1.071) and male gender (HR=3.704) were independently associated with an increased HCC risk (both P<0.05). Patients with a cirrhotic range of LS value after 2years of AVT were at a higher risk of HCC development than those with sc-LS (log-rank test, P=0.020). The achievement of sc-LS after AVT can reduce the risk of HCC development in patients with CHB, even when advanced fibrosis or cirrhosis is apparent on starting AVT.
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