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Zhonghua yi xue za zhi · Nov 2001
[Allogeneic peripheral blood stem cell transplantation for high-risk leukemia].
- X Huang, F Wang, and N Guo.
- Institute of Hematology, People's Hospital, Peking University, Beijing 100044, China.
- Zhonghua Yi Xue Za Zhi. 2001 Nov 25; 81 (22): 1348-51.
ObjectiveTo study the effects of allogeneic peripheral blood stem cell transplantation (allo-PBSCT) in high-risk leukemia.MethodsFrom October 1995 to December 2000, 25 patients with high-risk leukemia (median age 34 years, range 5.5-52 years) were transplanted with peripheral blood stem cells from their HLA-identical sibling donors. Among them, 15 patients suffered from acute leukemia (ALL) (one ph+ ALL in CR1, seven in CR2 or greater, and seven in relapse, including two in relapse after the first all-BMT), four patients suffered from chronic myelocytic leukemia (CML) (in CP2, AP, BC, and relapse after BMT respecively), 6 patients suffered from myelodys plastic syndrome (MDS), including one case of refractory anemia with excess of blasts (REAB), one case of refractory anemia with excess of blasts in trransformation (REAB-T), and 4 cases of acute leukemia secondary to MDS. The graft versus host disease (GVHD) prophylaxis included administration of cyclosporine and methotrexate.ResultsAll patients were successfully engrafted. The median times (range) for their neutrophil returning to > or = 0.5 x 10(9)/L and for platelet returning to > or = 20 x 10(9)/L were 14 (10-18) days and 11 (7-45) days after transplantation resprctively. Grade II acute GVHD occurred in 12 patients with an incidence rate of 48%. Grade III GVHD was found in one patient (4%). No grade IV GVHD was seen. Among the 23 evaluable patients, 16 were diagnosed as chronic GVHD (70%). The actual transplant-related mortality was 16%. Leukemia relapse occurred in 6 patients, four of them received donor lymphocyte infusion (DLI) and achieved remission again. Nineteen patients were alive and disease-free with a median follow-up time of 304 (94-1,963) days. The two-year probability of overall survival, disease-free survival (DFS), and relapse rates were 64%, 58%, and 25% respectively.ConclusionAllo-PBSCT decreases the relapse rate, increases the disease-free survival rate for patients with high-risk leukemia. All-PBSCT may be a better choice for patients with high-risk hematological maligmancies.
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