Abstract:Objective To compare the efficacy and safety of cyclosporine A (CsA) combined with immunosuppressive agents of different species in the treatment of children with severe aplastic anemia (SAA). Methods From April 2010 to August 2016, 93 cases of SAA children admitted to Anyang District Hospital were grouped according to the treatment plan. The patients in the r-ATG group (41 patients) received CsA combined with r-ATG and those in the p-ALG group (52 patients) received CsA combined with p-ALG. The treatment effect was compared between the two groups. Results In 3, 6, 9 and 12 months of treatment, the OR of the r-ATG group was 58.54%, 73.17%, 80.49% and 80.49% respectively, the OR of the p-ALG group was 46.15%, 75.00%, 75.00% and 76.92%, there were no significant differences between the two groups (P > 0.05). In the application of r-ATG or p-ALG, the number of children with anaphylaxis fever in the r-ATG group was significantly larger than that in the p-ALG group (P < 0.05), the total incidence of hypersensitivity in the r-ATG group was significantly higher than that in the p-ALG group (P < 0.05). After treatment with r-ATG or p-ALG, the total incidence of serum disease in the r-ATG group and the p-ALG group was 60.98% and 61.54% respectively (P > 0.05), the total incidence of infection was 34.15% and 32.69% respectively (P > 0.05), there was no significant difference in the overall effective rate between the two groups (P > 0.05). Conclusions CsA combined with r-ATG or p-ALG has significant effect in relieving hematologic response for treatment of children with SAA. During treatment, p-ALG has a significantly lower risk in the induction of allergic reactions than r-ATG.