脉冲过境时间和脉冲到达时间对无袖式血压估计的影响:与多项实验干预措施进行比较研究
概括
脉冲过渡时间 (PTT) 和脉冲到达时间 (PAT) 与血压 (BP) 相对应. 包括预喷射期 (PEP) 在内的PAT显示,在没有袖口的BP估计中,其准确性更高,这表明其对BP预测的潜力.
科学领域:
- 生物医学工程 生物医学工程
- 生理测量生理测量
- 心血管研究研究心血管研究
背景情况:
- 脉冲过渡时间 (PTT) 和脉冲到达时间 (PAT) 被调查用于无袖式血压 (BP) 估计.
- 由于易于获取和计算,更常用的是PAT,其中包括预弹射期 (PEP).
- 在BP估计中,PAT与PTT的可替代性仍然是争论的主题.
研究的目的:
- 为了比较基于PTT和基于PAT的模型的性能,用于跟踪血压变化.
- 在各种生理干预下分析BP和PTT/PAT之间的线性和非线性相关性.
- 确定是否需要将PEP纳入PAT测量中,以准确预测血压.
主要方法:
- 一项涉及55名受试者的实验,涉及多项旨在改变BP和PEP的干预措施.
- 分析BP与PTT/PAT之间的线性和非线性相关性.
- 基于PTT和基于PAT的BP估计模型的评估,包括五种典型模型.
主要成果:
- 预喷射期 (PEP) 显示了对物理压力干预措施的反应的快速变化.
- 虽然PTT与BP具有更强的线性相关性,但基于PAT的模型通常在跟踪BP变化方面显示出更高的准确性.
- 基于PAT的校准模型在所有测试干预中表现特别好.
结论:
- 脉冲到达时间 (PAT),结合预排气期 (PEP),显示了无袖血压预测的巨大潜力.
- 将PEP纳入PAT测量对于提高BP估计的准确性至关重要.
- 与基于PTT的方法相比,基于PAT的方法可以提供一种更强大的方法来监测BP变化.
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