远程缺血调节对健康个体心血管反应的影响
Inga Kiudulaite1, Jelena Cesarskaja1, Mante Eidininkiene1
1Department of Intensive Care Medicine, Lithuanian University of Health Sciences, Eiveniu g.2, 50161 Kaunas, Lithuania.
Life (Basel, Switzerland)
|June 26, 2025
概括
在健康的成年人中,远程缺血调节 (RIC) 并没有改变对被动抬腿 (PLR) 的心血管反应. 在PLR演习中,单次RIC发作并没有显著改变中风体积或外周 perfusion.
科学领域:
- 心血管生理学心血管生理学
- 血液动力学 血液动力学
- 缺血性调节 缺血性调节
背景情况:
- 远程缺血调节 (RIC) 对全身血动力学和循环反应性的影响仍然不完全理解.
- 研究RIC对诸如被动抬腿 (PLR) 这样的动作对心血管反应的影响,对于理解其生理影响至关重要.
研究的目的:
- 为了确定单次RIC会话对PLR诱导的心血管反应的影响.
- 在RIC之前和之后在PLR期间评估全身血液动力学指数和外周 perfusion 的变化.
主要方法:
- 一项涉及36名健康志愿者的前性研究.
- 系统血液动力学指数和输液指数 (PI) 测量顺序:卧卧,PLR期间,RIC之前,RIC后,第二次PLR期间,卧卧.
- 卒中体积 (SV) 变化 (≥10%) 定义了响应者;PI在PLR期间测量.
主要成果:
- 在RIC前 (61%) 和之后 (47%) 的PLR响应者比例 (SV变化≥10%) 中没有发现显著差异 (p = 0.180).
- 在两次PLR测试期间,SV变化之间存在强烈的相关性 (rs = 0.80,p < 0.001).
- 在RIC之前和之后,PLR增加了PI,在两种条件之间,PLR诱导的PI变化没有显著差异 (p = 0.944).
结论:
- 一次RIC发作似乎不会影响健康人群中PLR引起的心血管反应.
- 在PLR操作期间,RIC并没有显著改变系统血液动力学或外周 perfusion 指数.
- 可能需要进一步的研究来探索在不同人群中重复RIC或RIC会话的潜在影响.
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