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重新评估在体外膜氧化 (ECMO) 中血小板缺血和出血之间的关联
Albert Leng1, Hannah Rando2, Manuj Shah1
1Division of Thoracic Surgery, Department of Surgery, Johns Hopkins Medicine, Baltimore, MD, USA.
Perfusion
|July 30, 2025
概括
对于接受体外膜氧化 (ECMO) 的患者,血小板计数低于50 × 10 3细胞/μL的患者,可以从预防性血小板输血中获益,以减少出血风险.
科学领域:
- 关键护理医学 关键护理医学
- 血液学 血液学 血液学
- 心血管研究研究心血管研究
背景情况:
- 在接受体外膜氧化 (ECMO) 预防出血的患者中,输血的最佳血小板计数值尚未确定.
- 在需要ECMO支持的患者中,出血并发症是一个重大问题.
研究的目的:
- 在接受ECMO的成年患者中调查血小板数和出血并发症发生率之间的关联.
- 确定预防性血小板输血在ECMO期间在特定血小板计数范围内减轻出血风险的疗效.
主要方法:
- 一个单一中心的回顾性研究包括291名成年患者,他们在2017年至2022年期间接受了静脉 (VV) 或静脉动脉 (VA) ECMO.
- 患者根据血小板计数进行了分层分类:"血小板缺血" (≤30 × 103细胞/μL) 与"非血小板缺血" (>30 × 103细胞/μL).
- 多变量逻辑回归和后期分析检查了血小板计数,输血状态和重大出血事件之间的关系.
主要成果:
- 在291名患者中,有24%的患者被归类为血栓缩患者,50%的患者至少经历过一次重大出血事件.
- 血小板缺血与大出血风险的增加没有显著关联,可能与高预防性输血率 (72%) 相关.
- 在接受预防性血小板输血 (p = 0.003) 的31至50×103细胞/μL之间最低血小板计数的患者中,观察到严重出血并发症的显著减少.
结论:
- 这些发现表明,预防性血小板输血值≤50 × 10 3细胞/μL可能有利于预防ECMO患者的出血.
- 需要进一步的前性研究来确认ECMO支持期间的最佳血小板输血策略.
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