Recompensation features and prognosis in hepatitis B virus-related acute-on-chronic liver failure patients.

Objective: This study aimed to investigate the characteristics and prognosis of recompensation in hepatitis B virus (HBV)-related acute-on-chronic liver failure (ACLF).

Methods: A total of 136 patients with HBV-related ACLF were followed up until the end of the study. Patients were categorized into recompensation and non-recompensation groups based on whether recompensation occurred in the first year. The survival rate and incidence of recompensation were calculated using the Kaplan-Meier method.

Results: According to the BAVENO VII consensus criteria, 56 (41.18%) of these patients with ACLF regained recompensation in the 1-year follow-up. The recompensated group had less severe liver damage, higher alpha-fetoprotein, lower age, and lower model for end-stage liver disease score. Specifically, in terms of complications, the recompensated group showed a lower incidence compared with the non-recompensated group ( P  < 0.05). The 3-, 6-, 12-, 36-, and 60-month cumulative survival rates of ACLF were 44.9, 43.4, 43.4, 40.4, and 40.4% respectively. Among the patients who survived beyond 90 days, 57/61 (93.44%) patients showed recompensation of ACLF (with one patient recovering to recompensation after more than 1 year of follow-up), the 3-, 6-, 12-, and 24-month cumulative recompensation rates were 56.5, 90.9, 94.6, and 97.3%, respectively. Among the 57 patients with recompensation of ACLF, 87.7% maintained a stable condition, and 10.5% were diagnosed with hepatocellular carcinoma (HCC).

Conclusion: Milder necrosis, less inflammation, and more vigorous hepatic regeneration are conducive to recompensation and a better long-term prognosis in ACLF. However, the occurrence of HCC cannot be avoided and regular monitoring is necessary in the recompensation of ACLF.