OBJECTIVETo explore the incidence, pathogenesis, risk factors and effective treatment of pulmonary complications after allogeneic peripheral blood stem cell transplantation (allo-PBSCT).

METHODSPulmonary complications in 70 patients received allo-PBSCT were analyzed.

RESULTSThirty one episodes were observed in 26 patients. Among them episodes were infectious complications, including bacteria pneumonia, pulmonary fungus disease, CMV interstitial pneumonia and tuberculosis, some cases were caused by two pathogens, and 11 episodes were noninfectious complications, including late-onset noninfectious pulmonary complications (LONIPCs) (n=9), pulmonary edema (n=1) and interstitial pneumonia (n=1). The overall mortality was 12.9%. Graft-versus-host disease (GVHD) prophylaxis without MTX, severe acute GVHD and extensive chronic GVHD were high risk factors for pulmonary complications and advanced disease at transplantation, extensive chronic GVHD were significantly associated with the incidence of LONIPCs.

CONCLUSIONPulmonary disease is the main complication occurred in patients undergoing allo-PBSCT. It is of greatly importance to treat pathogens specifically and diagnose LONIPCs in its early stage.