基于EIT的个性化保护性通风策略对部分肺切除患者的肺部保护效应
1Department of Anesthesiology, The Second Affiliated Hospital of Wannan Medical College, Wuhu, China. anesthesia_icu@163.com.
概括
使用电阻断层扫描 (EIT) 进行个性化通风,改善了接受肺切除手术的患者的肺功能和氧化. 这种以EIT为指导的策略证明了保护肺部的效果,提高了手术后的结果.
科学领域:
- 麻醉学 麻醉学
- 胸部外科手术 胸部外科手术
- 呼吸系统生理学 呼吸系统生理学
背景情况:
- 肺保护性通风策略在胸部手术期间至关重要,以尽量减少肺损伤.
- 电阻断层扫描 (EIT) 可实时监测肺气化和通风分布.
- 优化正极呼气压 (PEEP) 是肺部保护的关键组成部分.
研究的目的:
- 评估由EIT指导的个性化通风策略的肺部保护效果.
- 为了比较EIT引导PEEP定位与标准PEEP定位在经过部分肺切除的患者的疗效.
主要方法:
- 接受选择性胸腔镜部分肺切除术的80名患者被随机分为两个组:PEEPEIT (EIT引导PEEP) 和对照组 (固定PEEP).
- 使用控制体积的通风,使用潮体积为6毫升/公斤.
- 在实验组中,PEEP 用EIT进行了个别定位,在对照组中设置为5厘米的H2O.
主要成果:
- 与对照组相比,PEEPEIT组显示出更高的PEEP,改善的氧化指数 (OI) 和更好的肺动态遵守 (Cdyn).
- 在PEEPEIT组中,肺内分离率 (Qs/Qt) 显著降低.
- 在手术后的PEEPEIT组中观察到降低的SP-A蛋白水平,这表明肺部损伤较少.
结论:
- 由EIT指导的个性化防护通风策略显示出显著的肺保护作用.
- 在EIT指导的PEEP定位可以优化通风和改善胸腔镜肺切除期间的呼吸参数.
- 这一策略可能有助于减少部分肺切除患者的肺损伤.
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