对比不同高流量鼻装置在加湿方面的实际性能:一项实验室研究
Zhong Ni1, Yuyan Zhou1, Na Tang1
1Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
Frontiers in medicine
|June 26, 2023
概括
高流量鼻腔管 (HFNC) 设备显示了不同的加湿性能. 艾尔沃2,贝拉维斯塔1000和HUMID-BH最好保持湿度在37°C,但建议在60L/分钟以上的流量时谨慎使用.
科学领域:
- 呼吸系统疗法 呼吸系统疗法
- 医疗设备工程 医疗设备工程
- 肺部医学 肺部医学
背景情况:
- 高流量鼻腔管 (HFNC) 治疗的生理效应取决于输送的气体温度和湿度.
- 不同制造商的HFNC设备之间的性能差异需要进行比较分析.
- 各种HFNC设备之间的加湿性能差异的程度尚不清楚.
研究的目的:
- 评估和比较不同集成高流量鼻管 (HFNC) 设备的加湿性能.
- 为了确定设置的露点温度和流速对实际输送的气体湿度和温度的影响.
- 识别HFNC设备,始终为患者护理提供最佳加湿.
主要方法:
- 测试了五种HFNC设备:AIRVO 2,TNI softFlow 50,HUMID-BH,OH-70C,以及一个带有HFNC模块的通风机 (bellavista 1000).
- 测试包括在31,34,37°C设置露点温度 (set-DP),以及从20L/分钟到设备最大的流量.
- 输送的气体参数,包括露点温度,温度,相对湿度和流量,从管中记录下来.
主要成果:
- 在所有设置DP级别的设备之间观察到实际露点温度 (实际-DP) 的显著差异 (p < 0.001).
- OH-70C和TNI softFlow 50显示实际DP低于设定DP,设定DP较高时差异越来越大.
- 艾尔沃2,贝拉维斯塔1000和HUMID-BH在37°C达到名义湿度;实际DP随着流量增加到60L/分钟,然后下降. 在所有设备中,输送的气体温度都超过了实际DP.
结论:
- 设备类型,设置的露点和设置的流量率显著影响到输送的气体温度和湿度.
- 艾尔沃2,贝拉维斯塔1000和HUMID-BH适合保持37°C的湿度,可能有利于气管切割患者.
- 由于潜在的性能变化,建议在使用超过60L/分钟的流量时谨慎使用.
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