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血小板功能障碍的逆转与冷储和室温储存的血小板输血

Valery J Kogler^1,2, Jeffrey A Miles^1,3, Tahsin Özpolat^1,4

¹Bloodworks Northwest Research Institute, Seattle, WA.

|March 1, 2024

概括

室温存储的血小板 (RSP) 更好地逆转了血小板抑制,而冷存储的血小板 (CSP) 增加了血栓生成. 捐赠者因素预测RSP和扩展存储CSP的疗效.

科学领域:

输血医学输血医学
血液学血液学血液学
免疫学免疫学免疫学

背景情况:

在室温 (RSP) 储存的血小板的保质期为5-7天.
为了解决短缺问题,现在批准了14天冷藏血小板 (CSP).
对CSP的输血后功能和理想的捐赠者概况仍然不清楚.

研究的目的:

为了评估7天RSP和14天CSP的输血后血小板功能.
为了确定血小板功能的预测因子,用于这两种存储方法.
在服用阿司匹林的健康志愿者中比较RSP和CSP.

主要方法:

一项随机交叉研究,涉及10名健康志愿者.
参与者在服用阿司匹林后顺序接收RSP和CSP.
评估了输血后的血小板功能,血栓生成和脂质介质.

主要成果:

在整合素激活试验中,RSP显著改善了血小板抑制.
CSPs导致显著更高的血栓生成,独立于微粒.
Lysophosphatidylcholine-O 种类预测了 CSP 的前凝能力; 脂肪酸预测了 RSP 聚合.

结论:

这项研究提供了扩展存储CSP的初始疗效数据.
对于RSP和CSP来说,确定合适的捐助者似乎是可行的.
这些发现支持在更大规模的临床试验中进行进一步调查.

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