机械通风过程中的喷气雾化:质量平衡分析.
Sushant Chaudhary1, Ann D Cuccia2, Gerald C Smaldone1
1Drs. Chaudhary and Smaldone are affiliated with Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Stony Brook University Medical Center, Stony Brook, New York, USA.
最佳的喷气雾化器设置包括将设备放置在患者附近 (IP),使用热和湿度交换器 (HME) 电路,并连续雾化以在机械通风过程中提供高效的气溶.
科学领域:
- 呼吸系统疗法 呼吸系统疗法
- 气溶科学 气溶科学
- 机械通风机械通风机械通风
背景情况:
- 在机械通风过程中喷气雾化器的性能还没有很好地定义.
- 风扇技术和雾化器相互作用需要更新的研究.
- 质量平衡技术提供了精确的气溶输送测量.
研究的目的:
- 为了优化喷气雾化器在机械通风期间的气溶输送.
- 为了评估设备位置,气源和电路设置的影响.
- 在各种通风参数下量化气溶的行为.
主要方法:
- 放射性标记颗粒和质量平衡量化的气溶输送.
- 在不同的位置 (IP,YP,DY) 和设置 (HME,加湿) 中测试了AeroTech雾化器.
- 连续和呼吸激活 (BA) 雾化评估与不同的吸入时间 (TI) 和电路合规性.
主要成果:
- 通过直线位置 (IP),HME电路和连续雾化 (29.8%) 实现最佳吸入质量 (IM).
- 在IP时使用BA的活性加湿产生了27.1%的IM,但显著增加了治疗时间.
- 更高的管道合规性降低了IM,而YP/DY位置显示出增加的呼气质量 (EM).
结论:
- 在线位置 (IP),HME电路,连续雾化和刚性管道优化喷气雾化器效率.
- 对于主动加湿,IP呼吸激活的雾化是有效的,但延长了治疗.
- 了解这些参数对于在通风患者中有效的气溶治疗至关重要.
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