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- Title
Can Left Atrial Strain and Strain Rate Imaging Be Used to Assess Left Atrial Appendage Function?
- Authors
Arslan, Sakir; Simsek, Ziya; Gundogdu, Fuat; Aksakal, Enbiya; Kalkan, Mehmet Emin; Gurlertop, Yekta; Erol, Mustafa Kemal; Karakelleoglu, Sule
- Abstract
Background: The aim of this study was to evaluate the efficiency of left atrial strain (S) and strain rate (SR) imaging in assessing left atrial appendage (LAA) function. Methods: We studied 78 consecutive patients (35 females and 43 males; mean age 38 ± 15 years) referred for transesophageal echocardiography (TEE). LAA late emptying velocity (LAA-EV) was calculated. Real-time color Doppler myocardial velocity imaging (MVI) data were recorded from the LAA by TEE and the lateral wall of the left atrium (LA) by transthoracic echocardiography. Longitudinal S and SR were measured in the mid portion of the lateral LA wall and lateral LAA wall during the contractile period. LAA late systolic velocity (LSV) and LA-LSV were obtained from Doppler analysis. Results: A significant positive correlation was detected between LAA-EV and MVI parameters (for LAA-S, r = 0.88, p < 0.001; for LAA-SR, r = 0.84, p < 0.001; for LAA-LSV, r = 0.83, p < 0.001; for LA-S, r = 0.84, p < 0.001; for LA-SR, r = 0.79, p < 0.001, and for LA-LSV, r = 0.70, p < 0.001). In addition, a significant positive correlation was detected between LAA-S and LA-S (r = 0.85, p < 0.001). Conclusion: We suggest that LA-S and LA-SR imaging is a beneficial method to evaluate LAA functions noninvasively. Copyright © 2012 S. Karger AG, Basel
- Subjects
CARDIAC imaging; HEART atrium; TRANSESOPHAGEAL echocardiography; COLOR Doppler ultrasonography; CHOLESTASIS; THROMBOEMBOLISM risk factors; PHYSIOLOGY; PREVENTION
- Publication
Cardiology, 2012, Vol 121, Issue 4, p255
- ISSN
0008-6312
- Publication type
Article
- DOI
10.1159/000337291