Evaluation of Left Atrial Appendage Functions According to Different Etiologies of Atrial Fibrillation with a Tissue Doppler Imaging Technique by Using Transesophageal Echocardiography

Abstract

LAA function deteriorated most severely in mitral stenosis and least in hyperthyroidism. The LAA area change and PW-Doppler emptying velocity were important predictors for SEC or thrombi. Although TDI was not superior to classical methods, it provided complementary data to PW-Doppler velocities for predicting SEC and thrombi.

Transthoracic Tissue Doppler Assessment of Left Atrial Appendage Contraction and Relaxation: Their Changes with Aging

“…[11][12][13][14][15][16] Transesophageal TDE patterns of LAA were reproducible and similar to those of Doppler flow, and peak TDE velocities correlated well with flow velocity and the LAA functions were evaluated in the patients with mitral stenosis or atrial fibrillation. [11][12][13][14][15][16] Recently, Uret-sky et al demonstrated that transthoracic TDE could be used to analyze LAA function and detect decreased LAA wall velocity in patients with atrial fibrillation. 8 In the present study, including patients who underwent TEE, we showed transthoracic TDE of the LAA wall velocities had significant correlations with transesophageal Doppler flow velocities in the LAA.…”

“…The usefulness of transesophageal TDE for the assessment of LAA function has been well described 11–16 . Transesophageal TDE patterns of LAA were reproducible and similar to those of Doppler flow, and peak TDE velocities correlated well with flow velocity and the LAA functions were evaluated in the patients with mitral stenosis or atrial fibrillation 11–16 . Recently, Uretsky et al demonstrated that transthoracic TDE could be used to analyze LAA function and detect decreased LAA wall velocity in patients with atrial fibrillation 8 .…”

The Effect of Different Atrioventricular Delays on Left Atrium and Left Atrial Appendage Function in Patients With DDD Pacemaker

“…Previous studies also implicated that the modification of the AVD does not influence filling pattern in patients with normal ventricular function. 15,[20][21][22] In this study, we used LAAEV and LSV for evaluation of LAA function. 9,16,19 Both LA and LAA is potential site for development of thrombus.…”

Contemporary echocardiographic assessment of atrial appendages in non-valvular atrial fibrillation

“…3). Furthermore, TEE with TDI is useful for risk stratification and provides additional prognostic information over conventional impulse-wave Doppler parameters [43,44]. Contrast TDI contributes to better visualisation of LAA, improving our understanding of its structure and function, assessment of SEC, and thromboembolic risk [6,45].…”