Background: The risk of Hepatitis B virus (HBV) reactivation in patients with different hematological malignancy except lymphoma were rarely known before. Methods: A total of 1962 patients with hematological malignancy were enrolled and followed-up at the National Taiwan University Hospital between 2008 and 2013. The clinical characteristics, HBV serology, and laboratory data were retrospectively reviewed and analyzed. Results: A total of 1962 patients comprising 1048 men and 914 women were studied. The median age of the patients was 55years (range, 15-97years). Chronic HBV carriage was documented at diagnosis of hematological malignancy in 286 (14.6%) patients. A total of 171 (59.8%) of the 286 HBV carriers received primary prophylaxis with anti-HBV agents. Of the HBV carriers, 97 (33.9%) developed hepatitis B reactivation during or after chemotherapy, including 59 patients who had discontinued antiviral therapy. The incidence of hepatitis B reactivation among patients with hematological malignancy and HBV carriage was 10.4 per 100 person-years. A multivariate analysis revealed hepatocellular carcinoma (p<0.001) and antiviral prophylaxis use (p<0.001) were independent risk factors of HBV reactivation in HBV carriers. Of the 1676 patients with initial negative hepatitis B surface antigen (HBsAg) counts, 41 (2.4%) experienced hepatitis B reactivation, reverse seroconversion of HBsAg, and lost their protective hepatitis B surface antibody (anti-HBs). A multivariate analysis revealed that diabetes mellitus (p=0.005, odds ratio (OR): 0.218, 95% confidence interval (CI): 0.076-0.629), allogeneic transplantation (p=0.013, OR: 0.182, 95% CI: 0.047-0.701), liver cirrhosis (p<0.001, OR: 0.002, 95% CI: 0-0.047), low anti-HBs titers (p=0.016, OR: 0.020, 95% CI: 0.001-0.480), and positive hepatitis B core antibody (p=0.013, OR: 0.070, 95% CI: 0.009-0.571) were independent risk factors of positive seroconversion of HBsAg in patients with hematological malignancy. Conclusions: The incidence of HBV reactivation among the patients with varying subtypes of hematological malignancy is similar. Prophylaxis with anti-HBV agents critically reduced the risk of hepatitis B reactivation.
CITATION STYLE
Chen, C. Y., Tien, F. M., Cheng, A., Huang, S. Y., Chou, W. C., Yao, M., … Sheng, W. H. (2018). Hepatitis B reactivation among 1962 patients with hematological malignancy in Taiwan. BMC Gastroenterology, 18(1). https://doi.org/10.1186/s12876-017-0735-1
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