AIM: Current guidelines recommend all patients scheduled to receive chemotherapy should be screened for hepatitis B surface antigen (HBsAg) and antibodies to hepatitis B virus core antigen (anti-HBc) status. However, still, more research is needed to identify the risk factors for hepatitis B virus (HBV) reactivation. We retrospectively investigated the incidence, risk factors and outcome of HBV reactivation in HBsAg negative patients with hematological malignancies. METHODS: Seven hundred and thirty-eight HBsAg negative patients with hematological malignancies were included in the study. HBV reactivation was defined as reverse seroconversion of HBsAg (HBsAg reappearance). Risk factors, cumulative incidence and overall survival of HBV reactivation were analyzed. RESULTS: Reactivation occurred in 23 of the 738 (3.1%) enrolled patients. As expected, the reactivation rate of the anti-HBc positive group was significantly higher than that of the anti-HBc negative group (5.4% vs 0.8%). Multivariate analysis indicated that loss of antibody to the hepatitis B surface antigen (anti-HBs) was an independent risk factor. Patients with acute lymphoblastic leukemia and multiple myeloma showed significantly higher reactivation rate than those with other diseases. The cumulative incidence of HBV reactivation after starting chemotherapy in the anti-HBc positive subgroup was 0.3% at 1 year, 1.7% at 2 years and 10.5% at 3 years. CONCLUSION: Close monitoring of HBV markers, including anti-HBs, should be performed for longer than 24 months. Further study is needed to establish a strategy to prevent HBV reactivation after chemotherapy in HBsAg negative patients with hematological malignancies.
AIM: Current guidelines recommend all patients scheduled to receive chemotherapy should be screened for hepatitis B surface antigen (HBsAg) and antibodies to hepatitis B virus core antigen (anti-HBc) status. However, still, more research is needed to identify the risk factors for hepatitis B virus (HBV) reactivation. We retrospectively investigated the incidence, risk factors and outcome of HBV reactivation in HBsAg negative patients with hematological malignancies. METHODS: Seven hundred and thirty-eight HBsAg negative patients with hematological malignancies were included in the study. HBV reactivation was defined as reverse seroconversion of HBsAg (HBsAg reappearance). Risk factors, cumulative incidence and overall survival of HBV reactivation were analyzed. RESULTS: Reactivation occurred in 23 of the 738 (3.1%) enrolled patients. As expected, the reactivation rate of the anti-HBc positive group was significantly higher than that of the anti-HBc negative group (5.4% vs 0.8%). Multivariate analysis indicated that loss of antibody to the hepatitis B surface antigen (anti-HBs) was an independent risk factor. Patients with acute lymphoblastic leukemia and multiple myeloma showed significantly higher reactivation rate than those with other diseases. The cumulative incidence of HBV reactivation after starting chemotherapy in the anti-HBc positive subgroup was 0.3% at 1 year, 1.7% at 2 years and 10.5% at 3 years. CONCLUSION: Close monitoring of HBV markers, including anti-HBs, should be performed for longer than 24 months. Further study is needed to establish a strategy to prevent HBV reactivation after chemotherapy in HBsAg negative patients with hematological malignancies.
Keywords:
antibody to hepatitis B surface antigen; antibody to hepatitis B virus core antigen; chemotherapy; hematological malignancy; hepatitis B virus; viral reactivation
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