Abstract
A retrospective analysis of MDS patients enrolled in the SA-MDS registry was performed. HLA data was analyzed from January 2003 to 30 June 2017 to ensure minimum follow-up of 2 years. During the study period, 341 of 681 (50%) MDS patients required at least one PLT transfusion, with 29 of 341 (9%) of all PLT transfusion patients requiring HLA-matched PLT transfusion for PLT-R. Of these 29 patients, 70% were females treated with disease-modifying therapies suggesting that these patients are at high risk of HLA alloimmunization. Immune-mediated PLT-R is common in MDS and can be expensive and difficult to manage once it occurs. Therefore, PLT transfusion practices should be optimized, especially for female MDS patients planned for disease-modifying therapies. This can help save time and streamline management, especially in the provision of PLT products for these patients, where the consequences of alloimmunization and PLT-R can be severe.
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