Plethysmographic波形的视觉评估:引入简单的缩比作为流体响应的指标
Muhammet Selman Söğüt1, Kamil Darçın1, Muhammet Ahmet Karakaya2
1Koç University Hospital, Department of Anaesthesiology and Reanimation, İstanbul, Turkey.
Turkish journal of anaesthesiology and reanimation
|February 28, 2024
概括
一种新的非侵入性方法,即脉冲氧计的简单缩比 (SSR),可以准确地评估液体反应. 这种方法与传统的动态指数有很强的相关性,为手术期间的患者安全提供了一个有前途的工具.
科学领域:
- 麻醉学 麻醉学
- 关键护理医学 关键护理医学
- 生物医学工程 生物医学工程
背景情况:
- 保持血液动力学稳定对于手术期间的患者安全至关重要.
- 动态指数,如缩压变化 (SPV) 和脉冲压变化 (PPV) 是评估流体响应性的侵入性方法.
- 需要使用非侵入性,简单的方法来评估流体反应.
研究的目的:
- 引入和评估简单缩比 (SSR) 作为评估流体反应的非侵入性方法.
- 将SSR与已建立的动态指数 (SPV和PPV) 进行比较.
- 评估SSR在手术环境中的临床可行性.
主要方法:
- 一项前性观察性研究,涉及25名成年患者在开放腹部手术期间.
- 在30分钟间隔收集SPV,PPV和SSR值.
- 在脉冲氧计追踪中,SSR被计算为最高波形与最短波形的比.
- 分析了SSR,SPV和PPV之间的相关性. 麻醉专家使用SSR.视觉评估液体反应.
主要成果:
- SSR与SPV (r=0.715) 和PPV (r=0.702) (P < 0.001) 显示出强烈的相关性.
- 预测流体响应性的最佳SSR值被确定为1.47 (与SPV相比) 和1.50 (与PPV相比).
- 麻醉专家在使用SSR.用视觉评估液体反应时,获得了83%的准确性.
结论:
- 作为一种简单的,非侵入性的临床工具,SSR显示出显著的潜力,用于评估流体反应.
- 它与侵入性标记物的强烈相关性表明它的实用性,特别是在资源有限的环境中.
- 需要进一步的研究来证实在不同监控设备的普遍适用性.
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