[Invasive fungal infections after allogeneic hematopoietic stem cell transplantation and related risk factors].

In order to analyze the incidence and high-risk factors of invasive fungal infections among recipients of allogeneic hematopoietic stem cell transplantation (allo-HSCT), 180 cases of allo-HSCT were enrolled in this study. The incidence and risk factors of IFI were analyzed by method of Kaplan-Meier and Cox regression model. The results showed that an incidence of IFI in 35 cases (19.5%) were detected, with 1 case proven and 34 cases probably diagnosed, which was composed of 18 cases (51.4%) of aspergillosis and 17 cases (48.6%) of candidosis. There was significant difference in one-year overall survival rate between patients with (34.3%) or without (53.8%) IFI. In univariate analysis, risk factors of IFI included: pretransplant fungal infection or colonization, unrelated donor (peripheral blood or bone marrow stem cell) transplantation, acute GVHD, extensive chronic GVHD and the use of methylprednisolone. In multi-variate analysis, the following risk factors of IFI were found:unrelated donor for allogeneic peripheral blood or bone marrow stem cell transplantation, acute GVHD and pretransplant fungal infection or colonization acute GVHD (RR: 2.399, 1.589, and 0.836). It is concluded that IFI is a frequent complication and one of the leading causes of mortality among recipients of allo-HSCT. As for patients with higher risk of IFI, early interventions should be taken.