虚拟血小板交叉匹配作为免疫血小板折射性患者的输血管理
Carolina Bonet-Bub1, Bruna Paccola Blanco1, Thais Carvalho de Oliveira1
1Hospital Israelita Albert Einstein, São Paulo, Brazil.
Vox sanguinis
|December 5, 2023
概括
爱普维克斯平台有效地对免疫血小板折射性患者的人类白细胞抗原 (HLA) 兼容血小板进行虚拟交叉匹配,证明了成功的输血结果.
科学领域:
- 免疫学 免疫学 免疫学
- 血液学 血液学 血液学
- 输血医学 输血医学
背景情况:
- 免疫性血小板折射性在输血医学中构成了挑战.
- 使用像Epvix这样的平台进行虚拟交叉匹配 (VC) 可以帮助选择兼容的血小板.
研究的目的:
- 评估Epvix平台对人类白细胞抗原 (HLA) 兼容血小板进行虚拟交叉匹配.
- 为了证明通过Epvix在免疫血小板折射性患者中选择血小板的有效性.
主要方法:
- 血液病患者的前性队列研究 (2018-2022).
- 使用了Epvix平台,上传了HLA类型的供体银行配置文件和患者抗体反应率面板 (PRA).
- 进行虚拟交叉匹配并计算血小板输血的24小时校正计数增量 (CCI).
主要成果:
- 包括6名具有高合免疫率 (平均PRA:85.7%) 的患者.
- 30名捐赠者被确定为血小板捐献.
- 平均24小时CCI为9882,表明输血成功,有两个例外可能是由于非免疫因素.
结论:
- 使用HLAMatchmaker算法,Epvix平台高效地进行了对HLA兼容血小板的虚拟交叉匹配.
- 埃普维克斯在选择耐火患者的兼容血小板方面表现出有效性.
- 由于支持人类血小板抗原多态化的局限性,物理交叉匹配仍然是必要的.
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