极端温度对血液静止的影响 通过使用血栓形成显微镜
Brittany A Ockenfels1,2, Matthew R Jordan1, Taylor DesRosiers3
1Department of Emergency Medicine, Navy Medicine Readiness and Training Command Portsmouth, Portsmouth, VA.
Wilderness & environmental medicine
|September 24, 2025
概括
这项研究发现,静血保持其启动血液凝结的能力,即使在暴露于极端温度后. 这对于在充满挑战的环境中控制出血至关重要,因为储存条件不理想.
科学领域:
- 创伤和紧急医疗医学
- 生物材料科学 生物材料科学
- 血液学 血液学 血液学
背景情况:
- 在严酷的环境中,血流控制至关重要,特别是对于非带可接受的伤口.
- 静血晶体至关重要,但它们的有效性可能会受到极端储存温度的影响.
- 在这种情况下,已经观察到静血的变色.
研究的目的:
- 为了评估极端温度暴露对血静性子疗效的影响.
- 为了比较 Kerlix 和 QuikClot Combat 的性能,在 -10°C,70°C 和 22°C 储存后.
- 为了评估表达凝血功能的血栓凝结学参数的变化.
主要方法:
- 在体外研究使用30名健康成年人的血液,稀释以模仿凝血病.
- 血小板造影 (TEG) 用于分析R,K,α角和MA参数.
- 静血 (Kerlix,QuikClot Combat Gauze) 在极端温度 (-10°C,70°C) 和室温 (22°C) 中储存了3周.
主要成果:
- 与全血相比,稀释血液显示出血凝动力学受损.
- 在稀释的血液中,这两种晶体缩短了凝块开始时间 (R值).
- 与Kerlix相比,QuikClot Combat Gauze显著降低了R值. 这是一个非常好的方法.
- 静血能够启动凝血 (R值降低) 的能力在所有测试温度中保持一致.
结论:
- 静血保持了其在体外启动凝血的能力,尽管长时间暴露于极端温度.
- 这一发现支持在严酷的环境中继续使用静血,储存条件可变.
- 进一步的研究可能会在类似条件下探索长期稳定性和体内表现.
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