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Standardizing Definitions of Hematopoietic Recovery, Graft Rejection, Graft Failure, Poor Graft Function, and Donor Chimerism in Allogeneic Hematopoietic Cell Transplantation: A Report on Behalf of the American Society for Transplantation and Cellular Therapy. Transplant Cell Ther 2021 08;27(8):642-649

Date

07/27/2021

Pubmed ID

34304802

DOI

10.1016/j.jtct.2021.04.007

Scopus ID

2-s2.0-85111026486   13 Citations

Abstract

Allogeneic hematopoietic cell transplantation (allo-HCT) is potentially curative for certain hematologic malignancies and nonmalignant diseases. The field of allo-HCT has witnessed significant advances, including broadening indications for transplantation, availability of alternative donor sources, less toxic preparative regimens, new cell manipulation techniques, and novel GVHD prevention methods, all of which have expanded the applicability of the procedure. These advances have led to clinical practice conundrums when applying traditional definitions of hematopoietic recovery, graft rejection, graft failure, poor graft function, and donor chimerism, because these may vary based on donor type, cell source, cell dose, primary disease, graft-versus-host disease (GVHD) prophylaxis, and conditioning intensity, among other variables. To address these contemporary challenges, we surveyed a panel of allo-HCT experts in an attempt to standardize these definitions. We analyzed survey responses from adult and pediatric transplantation physicians separately. Consensus was achieved for definitions of neutrophil and platelet recovery, graft rejection, graft failure, poor graft function, and donor chimerism, but not for delayed engraftment. Here we highlight the complexities associated with the management of mixed donor chimerism in malignant and nonmalignant hematologic diseases, which remains an area for future research. We recognize that there are multiple other specific, and at times complex, clinical scenarios for which clinical management must be individualized.

Author List

Kharfan-Dabaja MA, Kumar A, Ayala E, Aljurf M, Nishihori T, Marsh R, Burroughs LM, Majhail N, Al-Homsi AS, Al-Kadhimi ZS, Bar M, Bertaina A, Boelens JJ, Champlin R, Chaudhury S, DeFilipp Z, Dholaria B, El-Jawahri A, Fanning S, Fraint E, Gergis U, Giralt S, Hamilton BK, Hashmi SK, Horn B, Inamoto Y, Jacobsohn DA, Jain T, Johnston L, Kanate AS, Kansagra A, Kassim A, Kean LS, Kitko CL, Knight-Perry J, Kurtzberg J, Liu H, MacMillan ML, Mahmoudjafari Z, Mielcarek M, Mohty M, Nagler A, Nemecek E, Olson TS, Oran B, Perales MA, Prockop SE, Pulsipher MA, Pusic I, Riches ML, Rodriguez C, Romee R, Rondon G, Saad A, Shah N, Shaw PJ, Shenoy S, Sierra J, Talano J, Verneris MR, Veys P, Wagner JE, Savani BN, Hamadani M, Carpenter PA

Authors

Mehdi H. Hamadani MD Professor in the Medicine department at Medical College of Wisconsin
Julie-An M. Talano MD Professor in the Pediatrics department at Medical College of Wisconsin




MESH terms used to index this publication - Major topics in bold

Adult
Child
Chimerism
Graft Rejection
Hematopoietic Stem Cell Transplantation
Humans
Transplantation Conditioning
Transplantation, Homologous
United States