在接受胸腔镜手术的成年人中,在单肺通风过程中对肺功能和AQP1表达的剂量依赖调节
YuanQiang Li1, BenJing Gong1, SongLiu He1
1Department of Anesthesiology, Nanxishan Hospital of Guangxi Zhuang Autonomous Region (The Second Peoples Hospital of Guangxi Zhuang Autonomous Region), Guilin, Guangxi, China.
概括
在胸腔镜手术中,用0.5微克/千克/小时的德克斯梅托米丁 (DEX) 在单肺通风 (OLV) 过程中改善了肺功能. 这一剂量减少了炎症,并保持了水素-1 (AQP1) 的表达,这表明它对肺部损伤有保护作用.
科学领域:
- 麻醉学和重症监护医学
- 胸部外科手术 胸部外科手术
- 肺部生理学 肺部生理学
背景情况:
- 胸腔镜手术期间的单肺通风 (OLV) 可以损害肺功能并增加肺损伤.
- 德克斯梅德托米丁 (DEX) 是一种麻醉剂,具有潜在的抗炎和器官保护性质.
- 水素-1 (AQP1) 在膜液平衡中起作用,在OLV期间可能会受到影响.
研究的目的:
- 评估德克斯梅托米丁 (DEX) 在OLV期间对肺功能产生的剂量依赖性影响.
- 评估DEX在OLV期间对aquaporin-1 (AQP1) 表达和炎症标志物 (TNF-alpha,IL-8) 的影响.
- 确定最佳的DEX剂量,以减轻OLV诱导的肺损伤在胸腔镜手术.
主要方法:
- 一个单中心,双盲,随机对照试验,涉及60名接受胸腔镜手术的患者.
- 患者被随机分为三个组:对照组 (盐水),DEX 0.3μg/kg/h (D1组),DEX 0.5μg/kg/h (D2组).
- 肺指数 (RI,OI,Cdyn),血清炎症细胞因子 (TNF-alpha,IL-8) 和肺组织AQP1表达被测量为外科手术.
主要成果:
- 较高的DEX剂量 (0.5μg/kg/h) 显著降低了IL-8和呼吸指数 (RI),从OLV90分钟开始.
- 与对照组相比,D2组的氧化指数 (OI) 改善,肺部动态顺应 (Cdyn) 增加.
- 在D2组观察到更高的AQP1表达,AQP1和炎症标志物 (TNF-alpha,IL-8) 之间存在负相关性.
结论:
- 德克斯梅德托米丁剂量取决于减轻OLV诱导的肺损伤和改善肺功能.
- 0.5μg/kg/h的DEX剂量在减少炎症和保持AQP1表达方面表现出优越的疗效.
- 在OLV期间的DEX保护可能包括同时抑制炎症和调节膜液清除通路.
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