电阻断层扫描用于在时间控制的自适应通风中设置高压
Benjamin Pequignot1, Mickael Lescroart1, Bruno Levy1
1Service de Médecine Intensive et Réanimation, Hôpital Brabois, CHRU Nancy, 54500 Vandoeuvre les Nancy, France; Université de Lorraine, INSERM, DCAC, F-54000 Nancy, France.
Journal of critical care
|February 4, 2025
概括
电阻断层扫描 (EIT) 引导的个性化通风设置,用于急性呼吸困扰综合征 (ARDS) 患者的时间控制自适应通风 (TCAV). 欧洲实验室确定了最佳的Phigh水平,平衡过度张力和崩,以改善患者的治疗结果.
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
- 医疗成像医学成像
背景情况:
- 时间控制自适应通风 (TCAV) 是针对急性呼吸困扰综合征 (ARDS) 的个性化通风策略.
- 在TCAV中优化Phigh设置对于平衡肺部过度膨胀和崩至关重要.
- 电阻断层扫描 (EIT) 提供实时的区域性肺透气监测.
研究的目的:
- 评估EIT在指导ARDS患者TCAV期间Phigh水平的实用性.
- 通过评估区域肺机械学来确定最佳的Phigh设置.
主要方法:
- 一项前性单中心研究,涉及11名中度至重度ARDS患者.
- 患者使用EIT (PulmoVista 500) 进行监测.
- 进行了减量Phigh试验 (34到18cmH2O),通过调整Tlow.保持恒定的驱动压力. 欧洲能源与技术研究所 (EIT) 确定了将过度紧张和崩降到最低的Phigh水平.
主要成果:
- 与较高水平 (34 cmH2O) 相比,在较低的Phigh水平 (例如,18 cmH2O) 中,肺部合规性 (Crs) 显着更高.
- 较高的Phigh水平 (34cmH2O) 引发了显著的过度张力,特别是在前肺部区域.
- 患者之间的最佳EIT衍生的Phigh水平不同,从18到26cmH2O不等.
结论:
- 在TCAV期间,EIT有效地可视化了区域通风分布.
- 通过EIT,可以个性化确定最佳的Phigh,平衡过度伸缩和崩.
- 最佳 Phigh 的变化凸显了个性化 TCAV 设置的必要性.
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