在输血接受者中,红细胞变形性和临床相关性
Mahsa Yazdanbakhsh1, Celina Phan1, Pratham Patel1
1Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada.
概括
红细胞 (RBC) 的变形性对于氧气输送和微血管通道至关重要. 由于储存或供体因素导致红细胞变形能力受损,会对输血结果产生负面影响,需要改进检测.
科学领域:
- 血液学 血液学 血液学
- 生物物理学的生物物理.
- 输血医学 输血医学
背景情况:
- 红细胞 (RBC) 的可变性,即改变形状的能力,对于微血管循环和氧气运输至关重要.
- 红细胞的机械性质受到表面积与体积比,内部粘度,膜弹性以及与供体相关的因素的影响.
- 红细胞的储存,冷保存和辐射导致储存病变,减少可变性,并可能影响输血疗效.
研究的目的:
- 突出红细胞可变性在输血医学中的关键作用.
- 讨论影响红细胞变形性的因素,包括储存和供体特征.
- 强调红细胞变形性降低的临床影响和标准化测试的需要.
主要方法:
- 使用单细胞技术 (例如,微管吸入) 和散流方法 (例如,赤血细胞计) 评估红细胞的可变性.
- 对存储红细胞的生物化学和结构变化的分析,这些变化有助于存储损伤.
- 对临床数据的审查,将红细胞变形性与输血结果和微血管功能联系起来.
主要成果:
- 在冷藏,冷和辐射后观察到红细胞变形性降低.
- 捐赠者的年龄和健康状况等因素会影响红细胞的机械性质.
- 红细胞变形性降低与血流受损,氧气输送减少和红细胞清除快速有关,特别是在炎症条件下.
结论:
- 红细胞变形性是有效的氧气输送和输血成功的关键参数.
- 目前的输血实践并不经常包括红细胞可变性测试.
- 新兴的可变性评估技术可以通过更好的单元选择来优化RBC质量并改善患者的治疗结果.
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