儿科重症监护呼吸器的潮体积传递的准确性:一项基准模型研究
Meryl Vedrenne-Cloquet1, Samuel Tuffet2, Bruno Louis3
1Pediatric Sleep and Noninvasive Ventilation Unit, EA 7330 VIFASOM, AP-HP, Hôpital Necker Enfants-Malades, Paris, France; Université de Paris, Paris, France; Réanimation Médicochirurgicale Pédiatrique, AP-HP, CHU Necker-Enfants Malades, Paris, France.
湿化系统显著影响儿科呼吸机的潮体积 (Vt) 精度. 加热加湿器 (HH) 改善了Vt分娩,特别是在新生儿中,使它们更适合年轻患者.
科学领域:
- 儿科重症监护医药 儿科重症监护医药
- 呼吸系统生理学 呼吸系统生理学
- 机械通风技术的机械通风技术
背景情况:
- 机械通风期间的潮体积 (Vt) 交付受气体压缩,湿度和温度的影响.
- 准确的VT输送对于在儿科重症监护中有效的患者管理至关重要.
研究的目的:
- 根据其加湿系统,评估儿科重症监护呼吸机提供潮体积 (Vt) 的准确性.
- 评估集成Y片型气动图谱和正极呼气压 (PEEP) 维护的影响.
主要方法:
- 使用ASL5000试验肺与四个儿科模型 (从新生儿到儿童) 的基准研究.
- 在体积控制模式下测试了六台通风机,配备加热加湿器 (HH) 或热湿度交换器 (HME).
- 在不同的负载条件下评估准确性,并使用集成 pneumotachographs.
主要成果:
- 在不同呼吸机中,Vt的准确性各不相同,除了新生儿模型外,一般可以接受.
- 加湿系统显著影响了Vt输送 (p < 0.05).
- 与HME相比,加热加湿器 (HH) 提高了四台呼吸机的Vt精度,并且对于可接受的新生儿Vt输送至关重要.
结论:
- 湿化系统是影响儿科重症监护呼吸器中Vt精度的关键因素.
- 建议年轻儿科患者使用加热加湿器 (HH),以确保准确的潮体积传递.
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