非侵入性通风的风机性能:一个实验室研究
Christian Caillard1,2,3, Emeline Fresnel3,4, Elise Artaud-Macari3,5
1Intensive Care Unit, Intercommunal Hospital Centre Elbeuf-Louviers-Val de Reuil, Saint Aubin les Elbeuf, France chricaillard@gmail.com.
BMJ open respiratory research
|October 22, 2024
概括
专门的非侵入性通风器 (NIV) 设备在技术性能上通常优于重症监护室 (ICU) 的通风器,显示出较低的患者-通风器异步. 性能因呼吸条件和空气泄漏水平而有所不同.
科学领域:
- 呼吸系统护理 呼吸系统护理
- 生物医学工程 生物医学工程
- 关键护理医学 关键护理医学
背景情况:
- 在呼吸和重症监护病房 (ICU) 中,许多呼吸机可用于非侵入性通风 (NIV).
- 这些设备之间的技术性能比较对于优化患者护理至关重要.
- 本研究评估了在NIV期间各种呼吸机的性能.
研究的目的:
- 为了比较不同类型的用于非侵入性通风 (NIV) 的通风机的技术性能.
- 在各种模拟呼吸条件中评估患者-呼吸器异步和其他关键性能指标.
主要方法:
- 一项实验室研究评估了五台ICU呼吸机 (具有NIV模式),两台专用NIV呼吸机和一台运输呼吸机.
- 测试包括一个3D模型头,ASL 5000肺模型和一个不透气的口罩.
- 模拟包括三个肺形状 (正常,阻塞性,限制性),三个空气泄漏水平 (0-30 L/分钟),两个压力支水平 (8-14 cmH2O) 和两个呼吸速率 (15-25 循环/分钟).
主要成果:
- 与ICU呼吸机相比,专用NIV呼吸机的异步指数 (AI) 显着较低.
- 自动触发是导致患者与呼吸机异步的一个主要因素.
- 专用NIV呼吸机产生的吸气压力-时间产品低于ICU和运输呼吸机.
结论:
- 尽管有NIV算法,但大多数ICU呼吸机的效率低于非侵入性通风的专用NIV呼吸机.
- 呼吸器的性能受到患者潜在的呼吸系统疾病和空气泄漏程度的影响.
- 在许多临床场景中,专用NIV设备可以提供卓越的患者呼吸器同步.
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