OBJECTIVETo investigate the prognosis and hepatitis B serologic marker changes in patients with HBV infection or with HBV infected donors after allogenic hematopoietic stem cell transplantation (allo-HSCT).

METHODSThe clinical outcomes of 79 patients receiving allo-HSCT, including 55 with HBV infection and 24 from HBV infected donors were analyzed retrospectively.

RESULTS(1) HBV infection did not interfere with the clinical outcome of allo-HSCT. (2) In 20 HBsAg(+) patients, 13(65.0%) developed HBV reactivation between 0.5 and 10 months after transplantation, 9(45.0%) developed HBV-related hepatitis. (3) For the 35 HBsAg(-) and HBcAb/HBeAb positive patients, 4 (11.4%) occurred HBV seroconversion, 1 of the 4 complicated with severe chronic graft-versus-host disease (cGVHD). (4) There was a significant difference in HBV reactivation rate between the HBsAg(+) and HBsAg-groups (P < 0.01). The incidence of hepatitis occurred within 100 days after HSCT was high in HBsAg(+) patients (P < 0.05). (5) Clearance of HBsAg was observed in 2 HBsAg(+) patients, both of whom received graft from HBsAb positive donors.

CONCLUSIONSDonors or recipients infected with HBV is not considered an absolute contraindication for HSCT, but HBsAg positivity is a high risk factor for HBV reactivation and prophylactic lamivudine treatment may be helpful. For patients with HBcAb/HBeAb positivity, seroconversion can be observed, especially after immunosuppressant withdrawal. Adoptive immunity is effective in clearing HBV in these patients.