慢性阻塞性肺病中多普勒衍生的肺脉冲过境时间测量:可重复性和心肺功能
Friederike Löffler1, Mechthild Westhoff-Bleck1, Tobias Welte2,3
1Department of Cardiology and Angiology, Hannover Medical School, Hannover, Germany.
Echocardiography (Mount Kisco, N.Y.)
|May 6, 2024
概括
肺脉冲过渡时间 (pPTT) 测量在慢性阻塞性肺病 (COPD) 患者中显示出高可重现性,并且与右心室扩张功能相关. 使用Q波作为起点可能是临床上有益的.
科学领域:
- 心脏病学 心脏病学
- 肺部病理学 肺部病理学
- 医疗成像医学成像
背景情况:
- 肺脉冲过渡时间 (pPTT) 是慢性肺病的有希望的血液动力学标志物.
- 对比不同的PPTT测量技术对于临床应用至关重要.
研究的目的:
- 为了比较四个不同的pptt测量.
- 评估PPTT与COPD患者的右心脏和肺功能之间的关系.
主要方法:
- 这项前性研究涉及25名COPD患者和32名健康受试者.
- 四个PPTT测量 (R-S,Q-S,R-D,Q-D) 与心声和肺功能测试一起进行.
- 使用布兰德-阿尔特曼分析,变化系数 (COV) 和类内相关系数 (ICC) 评估可重复性.
主要成果:
- 所有的pptt测量都显示出在两组中具有较低的COV和高的ICC的高可重现性.
- 在COPD患者中,ppTT测量与右心室透静功能 (RV E',RV E/E') 和强迫生命能力 (FVC) 有显著的相关性.
- 在四种pptt测量方法之间没有发现显著差异或偏差.
结论:
- 所有的pptt测量技术都是高度可重现的,适合临床使用.
- 在COPD患者中,ppTT测量与直径右心室功能相关.
- 使用Q波作为心电图的起点可能是有利的,因为COPD患者的潜在电机失调.
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