接受红细胞输血的危急病患者的线粒体氧气张力:一个多中心观察队列研究
M Baysan1,2,3, B Hilderink4,5, L van Manen4
1Department of Intensive Care Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands.
Intensive care medicine experimental
|July 8, 2024
概括
红细胞 (RBC) 输血没有改变 mitochondrial 氧气张力或消耗在严重病的贫血患者. 需要进一步的研究来确定红细胞是否可以改善低线粒体氧气水平.
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
- 线粒体生理学线粒体生理学
背景情况:
- 红细胞 (RBC) 输血的有效性标记在危急病患者中缺乏.
- 贫血常见于重症患者中,需要进行红细胞输血.
研究的目的:
- 为了研究红细胞输血对 mitochondrial 氧气张力 (mitoPO2) 和 mitochondrial 氧气消耗 (mitoVO2) 在严重病的贫血患者的影响.
- 评估 mitoPO2 和 mitoVO2 是否可以作为红细胞输血的疗效标志物.
主要方法:
- 血红蛋白<10 g/dL的危急病患者接受了单个红血细胞单位.
- 在输血前和输血后的多个时间点使用COMET设备测量了线粒体氧气张力 (mitoPO2).
- 线粒体的氧气消耗 (mitoVO2) 由动态的mitoPO2测量计算出来.
主要成果:
- 包括63名患者,血液输血前血红蛋白的中位数为7.4g/dL.
- 红细胞输血在任何时间点都没有显著改变中位数mitoPO2或mitoVO2值.
- 米托PO2和米托VO2与血红蛋白度,疾病严重程度或组织 perfusion 参数无关.
结论:
- 在这个队列中,红细胞输血没有影响线粒体氧气张力或消耗.
- MitoPO2和mitoVO2并没有成为严重病的贫血患者输血红细胞的可靠疗效标志物.
- 红细胞输血对低线粒PO2的潜在益处仍然未确定,因为基线值很高.
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