在呼吸暂停测试期间的肺张力和呼吸末端的肺体积:使用电阻断层扫描进行比较分析
Ignacio Fernández Ceballos1, Joaquín Ems1, Emilio Steinberg1
1Unidad de Cuidados Intensivos, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
Medicina
|April 29, 2024
概括
在呼吸暂停测试 (CPAP-AT) 期间持续的正气道压力减轻了肺部缩,并改善了脑死亡评估患者的肺部应变. 这种方法为肺部捐赠者提供了潜在的好处,因为在呼吸暂停测试期间减少了肺部损伤.
科学领域:
- 关键护理医学 关键护理医学
- 呼吸系统生理学 呼吸系统生理学
- 神经学 神经学
背景情况:
- 呼吸暂停测试对于通过评估呼吸驱动的缺失来诊断脑死亡至关重要.
- 标准的呼吸暂停测试包括将患者从侵入性机械呼吸 (iMV) 中断,冒着低氧症和肺部崩等并发症的风险.
- 肺部缩可能导致末尾呼气肺体积 (EELV) 的减少和肺部应变的增加.
研究的目的:
- 评估在呼吸暂停测试 (CPAP-AT) 期间持续的正气道压力对减轻肺部崩的有效性.
- 评估CPAP-AT对肺部应变和最终呼气肺体积 (EELV) 损失的影响.
- 为了提供对肺部体积变化和呼吸暂停测试期间的应变的定量见解.
主要方法:
- 使用电阻断层扫描 (EIT) 监测肺生理学的案例系列.
- 在标准呼吸暂停测试 (脱离iMV) 和CPAP-AT之间,肺缩和肺应变的比较.
- 测量终端呼气肺体积 (EELV) 的变化.
主要成果:
- 与标准的呼吸暂停测试相比,CPAP-AT有效地减轻了肺部缩.
- 使用CPAP-AT改善了肺部压力,这表明肺部的机械压力减少了.
- 欧洲能源与技术研究所提供了关于EELV损失及其与肺部应变相关的定量数据.
结论:
- 在呼吸暂停测试期间,CPAP-AT是一种有前途的策略,可以减少肺部缩和肺部应变.
- 这种技术对于潜在的肺脏捐赠者来说可能特别有益,以保持器官质量.
- 该研究强调了EIT在监测肺机械和指导无呼吸测试期间干预措施的价值.
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