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Updated: Jul 13, 2025

Transthoracic Speckle Tracking Echocardiography for the Quantitative Assessment of Left Ventricular Myocardial Deformation

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一个新的斑点跟踪回声心脏学参数,评估左心室余负荷

Kei Sato^1,2, Karin Wildi^1,2,3,4, Jonathan Chan^5,6

¹Critical Care Research Group, The Prince Charles Hospital, Brisbane, Queensland, Australia.

European journal of clinical investigation

|October 12, 2023

概括

一种新的非侵入性超声波方法,压力-应变产品 (PSP),在预测心脏功能关键标志物如左心室中风工作指数 (LVSWI) 和在败血性心肌病中与负载相关的心脏表现 (ACP) 中显示出希望.

科学领域:

心脏病学心脏病学
关键护理医学关键护理医学
心声回声图 (Echocardiography) 是一种心声回声图.

背景情况:

左心室中风工作指数 (LVSWI) 和后负荷相关心脏表现 (ACP) 对于评估败血性心肌病至关重要,但需要进行侵入性测量.
在临床环境中,需要使用非侵入性方法来评估左心室 (LV) 后负荷和心脏表现.

研究的目的:

为了评估非侵入性压力-菌株产品 (PSP) 使用斑点跟踪回声心脏学.
为了确定PSP是否可以预测侵入性LVSWI,ACP和血清乳酸在性心肌病的绵羊模型中.
评估PSP能够区分急性呼吸困扰综合征 (ARDS) 亚现象类型,有或没有败血症的能力.

主要方法:

研究了16只患有ARDS的羊,分为类似败血症和非败血症的组.
侵袭性血液动力学参数 (LVSWI,ACP) 和血清乳酸被测量在横胸心声谱的同时.
两个PSP指数 (PSPcirc,PSPrad) 通过将平均动脉血压乘以全球周边或辐射应变来计算.

主要成果:

在类似败血症的组中,PSPcirc与LVSWI (r2=.66) 和ACP (r2=.82) 有很强的相关性.
PSPcirc准确预测了LVSWI (AUC .86) 和ACP (AUC .88) 的情况.
PSPrad显示了血清乳酸的预测值 (AUC .75).

结论:

新的压力-菌株产品 (PSP) 显示了在败血性心肌病中非侵入性评估心脏功能的潜力.
PSP可以作为预测LVSWI和ACP的有价值工具,并且与血清乳酸水平有关.

关键词:

后负载相关的心脏表现.左心室中风工作指数工作指数败血性心肌病症是什么意思斑点跟踪回声心脏图谱 (speckle-tracking echocardiography) 是一种跟踪斑点的回声心脏图谱.

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