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Predictive value of cross‐matching for transfusion of platelet concentrates to alloimmunized recipients

Predictive value of cross‐matching for transfusion of platelet concentrates to alloimmunized... Compatibility tests in which donor platelets were tested with recipient sera were performed retroactively after 64 transfusions of platelets from 59 unrelated donors to 10 alloimmunized patients. Techniques used were serotonin release, aggregometry, platelet factor 3 release, and lymphocytotoxicity, each of which has been advocated as a means of testing donor‐recipient platelet compatibility. Although “false positive” reactions were few (positive crossmatch but satisfactory transfusion response), “false negative” reactions (negative crossmatch but poor transfusion response) were unacceptably high (43% by lymphocytotoxicity, 60% by serotonin release, 76% by platelet factor 3 release, and 83% by aggregometry). We conclude that current methods of detecting isosensitization to platelet alloantigens are less satisfactory than HLA phenotyping in selecting unrelated platelet donors for an alloimmunized patient population. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png American Journal of Hematology Wiley

Predictive value of cross‐matching for transfusion of platelet concentrates to alloimmunized recipients

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References (16)

Publisher
Wiley
Copyright
Copyright © 1976 Wiley‐Liss, Inc., A Wiley Company
ISSN
0361-8609
eISSN
1096-8652
DOI
10.1002/ajh.2830010412
Publisher site
See Article on Publisher Site

Abstract

Compatibility tests in which donor platelets were tested with recipient sera were performed retroactively after 64 transfusions of platelets from 59 unrelated donors to 10 alloimmunized patients. Techniques used were serotonin release, aggregometry, platelet factor 3 release, and lymphocytotoxicity, each of which has been advocated as a means of testing donor‐recipient platelet compatibility. Although “false positive” reactions were few (positive crossmatch but satisfactory transfusion response), “false negative” reactions (negative crossmatch but poor transfusion response) were unacceptably high (43% by lymphocytotoxicity, 60% by serotonin release, 76% by platelet factor 3 release, and 83% by aggregometry). We conclude that current methods of detecting isosensitization to platelet alloantigens are less satisfactory than HLA phenotyping in selecting unrelated platelet donors for an alloimmunized patient population.

Journal

American Journal of HematologyWiley

Published: Jan 1, 1976

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