title: Matched-unrelated-donor bone marrow transplantation for children with leukemia.
abstract: OBJECTIVE
  This report describes the results of matched-unrelated-donor transplant for leukemia or myelodysplasia in the first 23 recipient children at a single medical center in Taiwan.
  
  
  METHODS
  Between August 1994 and February 2003, 23 consecutive children with leukemia or myelodysplasia underwent matched-unrelated-donor bone marrow transplantation (BMT). The preparative regimen consisted of fractionated total body irradiation and cyclophosphamide in 6 patients; busulfan in combination with etoposide and cyclophosphamide in 4 patients who received cranial irradiation before transplantation; and busulfan and cyclophosphamide in 13 patients.
  
  
  RESULTS
  Engraftment was achieved in 91.3% of cases. Acute graft-versus-host disease (GVHD) occurred in 18 of 21 patients who engrafted (85.7%). Event-free survival for all patients was 24.46 +/- 9.24%. The 12 children with standard-risk disease had better event-free survival than the 11 children with high-risk disease (46.88 +/- 15.03% vs 0%, p < or = 0.001).
  
  
  CONCLUSIONS
  The major obstacles to successful matched-unrelated-donor BMT are acute GVHD, relapse and infection. Early transplantation and patient selection, prophylactic and therapeutic maneuvers for GVHD, as well as appropriate donor selection and virus prophylaxis may improve the results.
authors.affiliation: Department of Pediatrics, College of Medicine, National Taiwan University Hospital, Taipei, Taiwan.
authors.forename: Yung-Li
authors.initials: YL
authors.lastname: Yang
authors.forename: Meng-Yao
authors.initials: MY
authors.lastname: Lu
authors.forename: Shiann-Tarng
authors.initials: ST
authors.lastname: Jou
authors.forename: Kai-Hsin
authors.initials: KH
authors.lastname: Lin
authors.forename: Dong-Tsamn
authors.initials: DT
authors.lastname: Lin
mesh_terms: D000293:Adolescent; D016026:Bone Marrow Transplantation / Q000009:adverse effects; D002648:Child; D002675:Child, Preschool; D005260:Female; D006086:Graft vs Host Disease / Q000209:etiology; D018380:Hematopoietic Stem Cell Transplantation; D006801:Humans; D007938:Leukemia / Q000401:mortality / Q000628:therapy*; D008297:Male; D012008:Recurrence