Background and aims: This study evaluated the clinical significance of subclinical ascites in patients with hepatitis B virus-related cirrhosis treated with lamivudine (LMV) or entecavir (ETV).
Methods: This multicenter retrospective study involved 8 hospitals. Patients were classified by degree of ascites: (1) no ascites (no ascites on imaging, no diuretics), (2) subclinical ascites (small amount of ascites on imaging, no diuretics), and (3) clinical ascites (moderate to severe ascites or diuretics).
Results: Out of 501 patients, 336 (68%), 51 (10%), and 114 (23%) patients were classified as no-ascites, subclinical ascites, and clinical ascites, respectively. In all, 100 (20%) and 401 (80%) were treated with LMV and ETV, respectively. Over 58±24 months of follow-up, 105 patients (21%) developed hepatocellular carcinoma. The cumulative incidence of hepatocellular carcinoma did not differ between LMV-treated and ETV-treated patients (P=0.61); it was higher in the clinical-ascites group than the no-ascites (P=0.054) and subclinical-ascites (P=0.03) groups, but it was comparable between the latter 2 (P=0.225). Forty-five patients (9%) died during follow-up. Survival was significantly shorter in the clinical-ascites group than the other 2 (both P<0.005), but it was comparable between no-ascites and subclinical-ascites groups (P=0.444). Multivariate analysis showed that mortality was significantly associated with prothrombin time [hazard ratio (HR)=2.42; 95% confidence interval (CI), 1.59-3.70], serum albumin (HR=0.54; 95% CI, 0.29-0.99), and presence of clinical ascites (HR=3.58; 95% CI, 1.54-8.30).
Conclusions: Subclinical ascites did not affect prognosis in patients with hepatitis B virus-related cirrhosis receiving antiviral treatment.