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István Zsenák¹, Alexandra Makai², Gabriella Kiss³

¹Doctoral School of Health Sciences, University of Pécs, Pécs, Hungary.

Frontiers in physiology

|April 11, 2024

概括

机械血栓栓塞预防显著增加静脉流速. 数学建模估计了恢复时间,显示了积极和被动干预措施的更长的效果,特别是在半侧.

科学领域:

血管医学血管医学
生物医学工程生物医学工程
数学建模的数学建模

背景情况:

机械血栓栓塞预防方法用于增加静脉流量和减少静脉静止.
现有研究评估了干预后的直接时间 (1-10分钟).
由于这些干预措施增加了静脉流速的持续时间,临床试验并没有很好地定义.

研究的目的:

应用数学技术来估计机械血栓塞栓预防后静脉流量增加的持续时间.
为了确定干预后峰值静脉流速恢复到静止状态的时间.

主要方法:

一项对25名中风后患者的调查 (平均年龄57.2±6.3岁,52%是男性).
使用多普勒超声波 (HADECO BIDOP ES-100V II,8 MHz) 在大腿静脉中测量的静脉血流速度峰值.
静脉血流速度的变化,用微软Excel中的最小方程方法估计.

主要成果:

峰值静脉流速的下降遵循一个对数函数.
休息静脉流速恢复时间: 26.8分钟 (完整的四肢),85.1分钟 (半侧) 后,积极的预防.
静止流速恢复时间: 131.9 分钟 (被动调动), 137.7 分钟 (共识效应) 后被动调动.

结论:

一个基本的数学函数可以从干预后15分钟的测量中估计静脉流速恢复时间.
积极和被动的机械血栓栓塞预防表明,对静脉流速有持续的,长期的影响.

关键词:

最小方程方法最小方程方法逻辑趋势线是一个逻辑趋势线.血栓塞栓症预防预防预防静脉流量预测的预测静脉流量是指静脉的流速.

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