通过被动抬腿诱导的潮尾二氧化碳变化可以预测静脉动脉外体膜氧化患者的液体反应:一项前性干预研究
Timothée Hannequin1, Aurore Ughetto2,3, Jacob Eliet2
1Department of Anesthesiology and Critical Care Medicine, Arnaud de Villeneuve Hospital, CHRU Montpellier, 371 Avenue du Doyen Gaston Giraud, Montpellier, 34295, France. timo_hannequin@hotmail.com.
Annals of intensive care
|November 19, 2025
概括
被动抬腿 (PLR) 有效地预测了静脉动脉外体膜氧化 (VA-ECMO) 患者的液体反应. 在PLR期间的潮尾二氧化碳 (EtCO2) 变化是可靠的指标,特别是当本源心脏输出低时.
科学领域:
- 心脏病学 心脏病学
- 临界护理医学 临界护理医学
- 医疗器械 医疗器械
背景情况:
- 静脉动脉外体膜氧化 (VA-ECMO) 对于心脏性休克至关重要,但会导致分流和心脏输出减少.
- 液体的管理是常见的,以提高心脏输出和 perfusion,但它的有效性各不相同.
- 潮尾二氧化碳 (EtCO2) 与心脏输出相关,表明其作为流体响应指标的潜力.
研究的目的:
- 调查被动抬腿 (PLR) 诱导的EtCO2变化是否可以预测VA-ECMO患者的液体反应.
- 评估PLR作为指导流体管理的非侵入性方法的可靠性.
主要方法:
- 一项前性干预研究,涉及VA-ECMO患者需要液体扩张.
- 血液动力学参数,包括EtCO2和左心室外流通道速度时间积分,在基线,PLR期间和液体注射后进行测量.
- 流体响应被定义为速度时积后体积扩张的≥15%增加.
主要成果:
- 该PLR机动准确地模仿了体积膨胀的影响 (ICC 0.83).
- 速度时间积分中PLR诱导的变化显示了流体响应的高预测值 (AUC 0.89).
- 由PLR诱导的EtCO2变化在预测流体响应性方面非常准确 (AUC0.98),特别是当原始心脏输出≤1L/分钟时.
结论:
- 被动抬腿是一种可靠的方法,可以预测VA-ECMO患者的液体反应.
- 在PLR期间监测EtCO2变化可以指导流体治疗,特别是在本源心脏输出低的患者中.
- 这种方法可以帮助防止不必要的液体管理和相关的并发症.
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