Relationship between esophageal and central venous pressure variation during respiratory activity: the best choice among four different methods to measure the amplitude of central venous pressure changes.

IF 2.6 3区 医学 Q2 ANESTHESIOLOGY
Giorgia Ogliari, Letizia Mazzuca Mari, Serena Crisci, Giulia Pradissitto, Federica Fusina, Filippo Albani, Alessandro Morandi, Michele Bertelli, Giuseppe Natalini
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引用次数: 0
呼吸活动期间食管与中心静脉压变化的关系:四种测量中心静脉压变化幅度方法的最佳选择
在机械通气过程中,肺和胸膜压力的变化会传递到胸内结构,包括静脉系统。因此,中心静脉压(CVP)的呼吸波动可能反映胸膜压的变化,通常用食管压(Pes)来估计。然而,用于测量的CVP波形上的点可能会影响这种关系。我们的目标是找到∆pe和每个∆CVP之间的最佳关联,考虑到CVP波形中的不同点来计算∆CVP。在这项前瞻性研究中,我们分析了22例机械通气患者的CVP和Pes波形。对于每个心动周期,确定三个CVP值:最小值(CVPmin),最大值(CVPmax)和平均值(CVPavg)。由此计算每次呼吸的四种呼吸CVP变化(∆CVP):∆CVPmin = CVPmin值的最大值-最小值;∆CVPmax = CVPmax值的最大值-最小值;∆CVPavg = CVPavg值的最大值-最小值;∆CVPtot =每个呼吸周期内最高CVPmax与最低CVPmin的绝对差值。主要目的是使用线性混合效应模型评估∆Pes和各∆CVP变体之间的关联。共分析2,286次呼吸(平均每位患者104次)。所有的∆CVP测量结果都显示出与∆Pes有统计学意义的关联。∆CVPtot的相关性最强,边际R²为0.50,条件R²为0.78。当使用多次连续呼吸的中位数时,这种关联进一步改善。具体来说,边际R²从0.60(中位数为3次呼吸)增加到0.70(中位数为23次呼吸)。在不同的测量策略中,∆cvptot(定义为呼吸周期内最高和最低CVP值之间的差值)与∆Pes的相关性最强。平均至少三次连续呼吸进一步加强了这种关系。这些数据有助于理解如何使用∆CVP来估计床边的∆pe。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
4.30
自引率
13.60%
发文量
144
审稿时长
6-12 weeks
期刊介绍: The Journal of Clinical Monitoring and Computing is a clinical journal publishing papers related to technology in the fields of anaesthesia, intensive care medicine, emergency medicine, and peri-operative medicine. The journal has links with numerous specialist societies, including editorial board representatives from the European Society for Computing and Technology in Anaesthesia and Intensive Care (ESCTAIC), the Society for Technology in Anesthesia (STA), the Society for Complex Acute Illness (SCAI) and the NAVAt (NAVigating towards your Anaestheisa Targets) group. The journal publishes original papers, narrative and systematic reviews, technological notes, letters to the editor, editorial or commentary papers, and policy statements or guidelines from national or international societies. The journal encourages debate on published papers and technology, including letters commenting on previous publications or technological concerns. The journal occasionally publishes special issues with technological or clinical themes, or reports and abstracts from scientificmeetings. Special issues proposals should be sent to the Editor-in-Chief. Specific details of types of papers, and the clinical and technological content of papers considered within scope can be found in instructions for authors.
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