流量指数作为一种非侵入性方法,用于评估压力支通风患者的鼓舞力
Federica Fusina1,2, Filippo Albani1, Heder J de Vries2,3
1Drs. Fusina, Albani, and Natalini are affiliated with Department of Anesthesia and Intensive Care, Fondazione Poliambulanza, Brescia, Italy.
流量指数是一种床边工具,用于评估机械通风期间患者的吸气力度,在识别低力度呼吸时显示出中度准确性,但在高力度呼吸时显示出低准确性.
科学领域:
- 关键护理医学 关键护理医学
- 呼吸系统生理学 呼吸系统生理学
- 医疗器械验证 医疗器械验证
背景情况:
- 流量指数是一种新的床边方法,利用流量波形来评估患者的鼓舞力.
- 在侵袭性机械通风过程中,精确评估吸气力度至关重要.
- 需要对流量指数进行外部验证,以确认其临床实用性.
研究的目的:
- 为了外部验证流量指数的能力,以区分低和高的患者启发力度.
- 评估流量指数在识别具有不同启发力度的呼吸时的区分能力.
主要方法:
- 来自随机对照试验的数据的二次分析.
- 使用线性混合效应模型,评估流量指数和患者鼓舞力度 (ΔPmus和PTPinsp) 之间的关联.
- 对流量指数的区分能力 (AUC) 的分析,用于低和高的灵感力度呼吸.
主要成果:
- 这项研究分析了38名受试者的1095次呼吸.
- 流量指数显示了低启发力 (AUC 0.73-0.77) 的中度区分力.
- 对于高启发力度的区分力很低 (AUC为0.65-0.68).
结论:
- 流量指数显示在识别低吸入力努力呼吸时的适度有效性.
- 流量指数在识别高启发力努力呼吸时具有有限的有效性.
- 可能需要进一步的研究来改善流量指数在检测高启发力度方面的表现.
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