Left atrial longitudinal strain by speckle tracking echocardiography correlates well with left ventricular filling pressures in patients with heart failure
Left atrial longitudinal strain by speckle tracking echocardiography correlates well with left ventricular filling pressures in patients with heart failure
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DOI：
10.1186/1476-7120-8-14
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发表时间：
2010-04-21
影响因子：
1.9
通讯作者：
Maccherini, Massimo
中科院分区：
文献类型：
--
作者：
Cameli, Matteo;Lisi, Matteo;Maccherini, Massimo
背景资料：早期二尖瓣血流速度与二尖瓣环组织多普勒成像（E/Em比值）的结合被广泛应用于无创估计左心室（LV）充盈压。然而，E/Em比值有一个显着的灰色区域，其在心力衰竭患者中的准确性存在争议。最近提出的斑点跟踪超声心动图（STE）的左心房（LA）变形分析作为一种替代方法来估计LV充盈压力。本研究旨在探讨心力衰竭患者左心房纵向功能的STE和多普勒测量与左心室充盈压的相关性。
Background: The combination of early transmitral inflow velocity and mitral annular tissue Doppler imaging (E/Em ratio) is widely applied to noninvasively estimate left ventricular (LV) filling pressures. However E/Em ratio has a significant gray zone and its accuracy in patients with heart failure is debated. Left atrial (LA) deformation analysis by speckle tracking echocardiography (STE) was recently proposed as an alternative approach to estimate LV filling pressures. This study aimed at exploring the correlation of LA longitudinal function by STE and Doppler measurements with direct measurements of LV filling pressures in patients with heart failure.Methods: A total of 36 patients with advanced systolic heart failure (ejection fraction