Natural history of decompensated cirrhosis with serum hepatitis B DNA < 2000 IU/mL: a retrospective study.

<bold>Background and Aims: </bold>Patients with low HBV DNA levels (< 2000 IU/mL), HBV DNA negative, and HBsAg-negative hepatitis B virus(HBV)infection can still progress to decompensated cirrhosis; however, clinical research data in such patients, especially treatment-naïve patients, are currently insufficient. This study assessed the natural history of aforementioned patients.<bold>Methods: </bold>We retrospectively reviewed the data of 250 patients with HBV-associated decompensated cirrhosis(HBV DNA < 2000 IU/mL) who had not been treated with antiviral medication.<bold>Results: </bold>The mean age of the 250 patients was 53.90 ± 11.73 years and 183 patients (73.2%) were male. HBV DNA, HBsAg, and HBeAg positivity was detected in 77 (30.8%), 200 (80%), and 137 (54.8%) patients, respectively. HBsAg (odds ratio [OR], 3.303; 95% confidence interval [CI], 1.338-8.152; P = 0.010) and HBeAg (OR, 0.200; 95% CI, 0.107-0.376; P < 0.001) positivity were independent factors for low HBV DNA levels. The incidence of hepatocellular carcinoma (HCC) (P < 0.001) and portal vein thrombosis (P = 0.001) was higher in the low HBV DNA levels group. Multivariate analysis showed that HBV DNA positivity (OR, 3.548; 95% CI, 1.463-8.604; P = 0.005), HBeAg positivity (OR, 0.080; 95% CI, 0.022-0.289; P < 0.001), and glutamyltransferase (GGT) (OR, 1.003; 95% CI, 1.000-1.006; P = 0.040) were independent factors for HCC. Age was not related to the occurrence of cirrhosis complications.<bold>Conclusion: </bold>Patients with decompensated cirrhosis with HBV DNA < 2000 IU/mL still had severe liver damage and could develop severe cirrhosis complications. HCC risk was higher in low HBV DNA levels patients. HBsAg positivity and HBeAg negativity may be associated to the occurrence of low HBV DNA levels. [ABSTRACT FROM AUTHOR]