鼻腔高流量调节口腔输管患者的呼吸障碍
Valentine Le Stang1,2, Mélodie Graverot1,2, Antoine Kimmoun3,4
1Neurophysiologie respiratoire expérimentale et clinique, INSERM, UMRS1158, and.
American journal of respiratory and critical care medicine
|December 16, 2024
概括
鼻高流量 (NHF) 疗法有效地减少了急性呼吸衰竭的患者的呼吸障碍. 这种疗法降低了呼吸驱动力,而不会影响在压力支通风和自发呼吸试验期间的吸气工作.
科学领域:
- 临界护理医学 临界护理医学
- 呼吸系统生理学 呼吸系统生理学
背景情况:
- 急性呼吸衰竭通常需要机械通风,呼吸困难是主要症状.
- 鼻高流 (NHF) 疗法越来越多地用于治疗呼吸不良,但其精确的机制需要进一步阐明.
- 了解NHF对呼吸机制和患者报告结果的影响对于优化其应用至关重要.
研究的目的:
- 为了比较NHF对呼吸不良,气道封闭压力 (P0.1) 和直管患者的呼吸工作的影响.
- 在压力支通风 (PSV) 和自发呼吸试验 (SBT) 期间调查这些影响.
主要方法:
- 研究了20名被直管的呼吸障碍患者 (NRS>3).
- 测量包括呼吸障碍得分 (NRS,MV-RDOS),P0.1,食道压力,呼吸肌EMG和动脉血液气体.
- 患者接受了PSV与不同的NHF (0-60L/分钟) 和SBT与NHF (0和50L/分钟).
主要成果:
- 在PSV期间,NHF (30和50L/分钟) 与没有NHF相比,显著降低了呼吸障碍-NRS得分 (P<0.05).
- 在PSV期间,NHF没有改变MV-RDOS得分,P0.1,食道压力,呼吸肌EMG或气体交换.
- 在SBT期间,NHF (50 L/分钟) 降低了呼吸障碍-NRS得分和P0.1 (P < 0.01和P = 0.04,分别),而没有改变其他测量参数.
结论:
- 在口服直管患者中,NHF治疗与呼吸不全和呼吸驱动的减少有关.
- 这些好处在PSV和SBT期间都被观察到.
- 在这个患者队列中,NHF并没有显著影响吸气工作或呼吸肌肉活动.
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