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静脉注射法是否会影响患者在体外循环期间的气体栓塞负荷?
Petronella Torild1, Anna Corderfeldt Keiller1,2, Tor Damén2,3
1Department of Perfusion, Sahlgrenska University Hospital, Gothenburg, Sweden.
Perfusion
|May 20, 2025
概括
在心肺旁路 (CPB) 期间的气体微栓塞 (GME) 在 cavoatrial 和 bicaval 管方法之间没有显著差异. 该CPB电路有效过GME,确保患者的安全.
科学领域:
- 心血管外科心血管外科
- 生物医学工程 生物医学工程
- 麻醉学 麻醉学
背景情况:
- 心肺绕道 (CPB) 对于心脏手术至关重要,但存在风险,特别是气状微栓塞 (GME).
- 在CPB期间GME的患病率及其对中风风险的影响尚未完全理解.
- 尽量减少GME对于改善开放心脏手术患者的结果至关重要.
研究的目的:
- 在开放式心脏手术期间,量化比较GME在静脉线上的发生率,以表心腔和双心腔管技术进行对比.
- 探索静脉容量对GME的影响.
- 评估GME在静脉和动脉线上的相关性.
主要方法:
- 一个单中心随机对照试验,涉及39名接受心脏手术的成年患者.
- 患者被分配到 cavoatrial 或 bicaval cannulation 中,并随机分配到不同的静脉储水体积 (≥300 mL vs 200-300 mL).
- 在整个CPB电路中使用GAMPT BCC300探针检测到气体微栓塞.
主要成果:
- 在阴门和两门管之间没有发现动脉GME计数或体积的显著差异 (分别为p=.444和p=.967).
- 静脉储体积没有显著影响GME水平 (p=.074计数,p=.166体积).
- 在静脉和动脉线的GME之间没有观察到显著的相关性 (p=.492和p=.750).
结论:
- 管策略 (心腔与双心腔) 在CPB期间不会显著影响动脉GME.
- 在去除GME方面,CPB电路的有效性 (99.14%) 强调了现代氧化器和过器的作用.
- 没有报告任何不良事件,这表明当前CPB系统在管理GME时的安全性.
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