ABSTRACT
To analyze factors associated with survival, rejection and graft versus host disease in aplastic anaemia patients undergoing allogeneic haematopoietic stem cell transplantation [SCT] from HLA matched sibling donors. Analytical study. Armed Forces Bone Marrow Transplant Centre, Rawalpindi, Pakistan from July 2001 to June 2010. Consecutive aplastic anaemia [AA] patients undergoing haematopoietic stem cell transplantation from HLA-matched sibling donors at this centre were included in this study. Potential factors affecting overall survival, rejection, disease-free survival and graft versus host disease were analyzed. Survival analysis was done by Kaplan-Meier method. Cox regression model was applied for multivariate analysis. Ninety male and thirty-five female patients with AA were included in the study. Median age was 18 years. Conditioning regimens used were cyclophosphamide [Cy] plus antilymphocyte globulin [ALG] or antithymocyte globulin [ATG], fludarabine [FLU] +Cy+ATG, Campath 1-H +Cy in 89, 30 and 6 cases respectively. GVHD prophylaxis used was ciclosporin [CSA] plus prednisolone and short methotrexate in 81 while 44 received CSA plus prednisolone. At a median follow-up of 1185 days OS and DFS were 84% and 78% respectively. Factors associated with better OS were male sex, Flu/Cy/ATG conditioning and use of bone marrow as stem cell source. Flu/Cy/ATG conditioning regimen, bone marrow as stem cell source and CSA, prednisolone and short methotrexate regimen were associated with better survival in AA