alexa Effect of Pre-Transplant Red-cell Transfusion Events on Transplant Related Mortality and Overall Survival in Children with Leukemia Undergoing Hematopoietic Stem Cell Transplant
ISSN: 2572-4916

Journal of Bone Research
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Research Article

Effect of Pre-Transplant Red-cell Transfusion Events on Transplant Related Mortality and Overall Survival in Children with Leukemia Undergoing Hematopoietic Stem Cell Transplant

Jennifer Andrews1,2*, Ruosha Li3, Ann C Mertens4, John Horan5 and Cassandra D Josephson4,6

1Departments of Pathology and Pediatrics, Stanford, California, USA

2Stanford University Medical Center, Stanford, California, USA

3Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA

4Aflac Cancer Center and Blood Disorders Service, Children’s Healthcare of Atlanta, Emory University, Atlanta, GA, USA

5Department of Pediatrics, Columbia University Medical Center, New York, USA

6Department of Pathology and Laboratory Medicine, Center for Transfusion and Cellular Therapies, Emory University School of Medicine, Atlanta, GA, USA

*Corresponding Author:
Jennifer Andrews
300 Pasteur Drive, Room H1402
Stanford, CA 94305, USA
Tel: +650736-0788
Fax: +650723-9178
E-mail: [email protected]

Received date: May 21, 2014; Accepted date: August 25, 2014; Published date: August 27, 2014

Citation: Andrews J, Li R, Mertens AC, Horan J, Josephson CD, et al. (2014) Effect of Pre-Transplant Red-cell Transfusion Events on Transplant Related Mortality and Overall Survival in Children with Leukemia Undergoing Hematopoietic Stem Cell Transplant. J Bone Marrow Res 2:142. doi:10.4172/2329-8820.1000142

Copyright: © 2014 Jennifer A, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Background: Recent studies have shown that an elevated ferritin level prior to hematopoietic stem cell transplant (HSCT), serving as a surrogate marker of body iron load, is independently associated with transplant related mortality (TRM) and inferior overall survival (OS) in adult oncology patients.
Study Design and Methods: We performed a retrospective cohort study of 112 children with leukemia treated at our institution over a 10 year period, and compared TRM and OS after HSCT in those children with and without high red-blood cell (RBC) transfusions. Both groups were similar in regards to age, diagnoses, donor type (matched related, matched unrelated, mismatched related, mismatched unrelated), stem cell source (peripheral blood, umbilical cord, bone marrow), baseline liver, cardiac and renal function, and median follow-up time. However, more children in the low RBC transfusion event cohort had high Karnofsky/Lansky performance scores (83.5% vs 54.5%, p=0.001) and fewer had recurrent leukemia or other forms of advanced disease compared with the children more heavily transfused (41.8% vs 87.9%, p<0.0001).
Results: No association was observed between high RBC transfusion exposure and TRM. High RBC transfusion events were associated with lower OS at 5 years in univariate analysis (38% versus 61%, p=0.04); in multivariate analysis, this association was not significant (hazard ratio=1.3, 95% confidence interval 0.7-2.5).
Further studies in children are needed to investigate iron overload and HSCT outcomes.

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