失控的正静止低血压和多通道的大脑血液动力学变化在一个年轻的男性参与者:一个案例报告
Atsuhiro Tsubaki1, Sho Kojima2, Hajime Tamiya2
1Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan. tsubaki@nuhw.ac.jp.
Advances in experimental medicine and biology
|January 23, 2026
概括
近红外光谱 (NIRS) 可以通过在平均动脉压 (MAP) 下降之前监测大脑区域中氧化血红蛋白 (O2Hb) 和总血红蛋白 (THb) 的变化来检测正静性低血压.
科学领域:
- 神经科学是一个神经科学.
- 生理学 生理学 生理学
- 生物医学工程 生物医学工程
背景情况:
- 正静性低血压是一种在站立时血压下降的特征.
- 目前用于检测静止性低血压的方法可能无法在足够早的时间发现它以防止不良影响.
- 近红外光谱学 (NIRS) 提供了一种非侵入性方法来监测大脑血液动力学.
研究的目的:
- 调查NIRS在实验诱导的正静压力期间检测大脑和肌肉血液动力学变化的实用性.
- 为了在静止测试期间将NIRS测量的血红蛋白变化与平均动脉压 (MAP) 和皮肤血流 (SBF) 相关联.
主要方法:
- 一名年轻的男性参与者在受控环境中进行了600秒的站立测试.
- NIRS用于测量前额叶皮层 (PFC),补充运动区域 (SMA) 和感觉运动皮层 (SMC) 中的氧化血红蛋白 (O2Hb),脱氧化血红蛋白 (HHb) 和总血红蛋白 (THb).
- 平均动脉压 (MAP),皮肤血流 (SBF) 和巨大的侧面肌肉 (VL) 血液动力学也被监测.
主要成果:
- 平均动脉压 (MAP) 在500秒左右显著下降.
- 在SMA和PFC中,NIRS检测到O2Hb和THb的下降,从大约420-450秒开始,在MAP下降之前.
- 大侧肌的血液动力学变化在试验结束时显示了O2Hb和THb的增加.
结论:
- 在MAP显著下降之前,NIRS可以检测大脑血液动力学变化,表明即将出现正静性低血压.
- 这些发现表明,NIRS是早期检测正静性低血压的有希望的工具.
- 进一步的研究是有必要的,以验证这些发现在更大和多样化的群体.
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