相关实验视频
Updated: Nov 11, 2025

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A Structured Approach to Extubation in Mechanically Ventilated Rats
Published on: July 18, 2025
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关键病患者的呼吸机断奶和停用做法
Karen E A Burns1,2,3, Leena Rizvi2, Deborah J Cook4,5
1Interdepartmental Division of Critical Care, University of Toronto, Toronto, Ontario, Canada.
JAMA
|March 23, 2021
概括
在全球范围内,停止侵入性机械通风 (IMV) 的做法有所不同. 自发呼吸试验 (SBT) 是常见的,但如果失败或延迟,则会导致更糟糕的结果,这凸显了对标准化断奶方案的需求.
科学领域:
- 危急护理医学
- 呼吸疗法
- 临床研究
背景情况:
- 侵入性机械通风 (IMV) 是重症监护的基石,但其停止过程缺乏标准化的特征.
- 了解IMV断奶实践的变化对于改善患者的结果至关重要.
研究的目的:
- 调查国际惯例中的IMV停用变化.
- 分析初始断奶策略与临床结果之间的关联.
- 确定影响使用特定断奶方法和自发呼吸试验 (SBT) 成功的因素.
主要方法:
- 在19个国家的142个重症监护室 (ICU) 进行了1868名严重病患的前性,跨国观察性研究.
- 收集了IMV持续时间,初始停药事件 (输出管,SBT,气管切除术) 和临床结果,包括死亡率和停药时间.
- 对不同的断奶策略和SBT时间进行了比较分析.
主要成果:
- 在国际上观察到IMV停药实践的显著差异,包括直接输出 (22. 7%),初始SBT (49. 8%) 和直接气管切除 (8. 0%).
- 与直接输出管相比,接受初始SBT的患者的ICU死亡率更高,呼吸时间更长,ICU停留时间更长.
- 失败的SBT和延迟的SBT (> 输管后2. 3天) 与明显更差的临床结果有关,包括死亡率增加和住院时间延长.
结论:
- 在国际重症监护室中,侵入性机械通风的断奶实践有很大差异.
- 自发呼吸试验的时间和成功对患者的结果产生了重大影响,这表明需要优化断奶方案.
- 对标准化,基于证据的断奶策略进行进一步研究是有必要的,以改善机械呼吸患者的护理.
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