PMID: 16524071Mar 10, 2006Paper

Hematopoietic stem-cell transplantation in aplastic anemia

Revista de investigación clínica; organo del Hospital de Enfermedades de la Nutrición
E Gabriela Hernández-Rivera

Abstract

Severe aplastic anemia is a rare syndrome characterized by bone marrow failure with cytopenias and hypocellular bone marrow biopsy (usually 10-15%), without blasts or myelodysplasia. The first choice treatment for these patients is allogeneic bone marrow transplantation from a sibling matched for HLA-A, HLA-B and HLA-DR. Unfortunately only 30% of patients have an HLA-matched sibling (a 25% chance per sibling). The alternative treatment for severe aplastic anemia for the rest of the patients (70%) is immunosuppression with antithymocyte globuline and cyclosporine. The evolution of bone marrow transplantation since 1970's has been positive in terms of survival and transplant success (initial overall survival 43% vs. 90% lately, and graft rejection of 29% vs. 4%). The favorable outcome of bone marrow transplantation for severe or very severe aplastic anemia is due to: the use of conditioning with antithymocyte globuline and cyclophosphamide, the use of graft-vs.-host disease prophylaxis with short curse methotrexate and cyclosporine and the use of filtrated and irradiated blood products. For those patients without an HLA-matched related donor the first treatment to use is the immunosuppression with antithymocyte globuline and cycl...Continue Reading

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