Key result
Transthoracic echocardiography assessment of left atrial appendage emptying velocity strongly correlated with transesophageal echocardiography (r = 0.88, P < 0.001) and predicted thrombus or SEC.
Why the study?
Does TTE pulsed Doppler measurement of LAA flow velocities correlate with TEE and predict echocardiographic risk factors for stroke?
Population
103 consecutive patients undergoing both transesophageal echocardiography and transthoracic echocardiography
Comparison
Transthoracic echocardiography pulsed Doppler… vs Transesophageal echocardiography pulsed Doppler…
Design
Cohort
Authors
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Suggests a non-invasive alternative for thromboembolic risk stratification; leaves open whether this approach can.
Observational (n=103)
Does TTE pulsed Doppler measurement of LAA flow velocities correlate with TEE and predict echocardiographic risk factors for stroke?
Effect estimate: r = 0.88
p-value: p=<0.001
TTE assessment of LAA function is feasible, correlates strongly with TEE, and can predict the presence of thrombus, spontaneous echo contrast, and LAA dysfunction, offering a non-invasive tool for thromboembolic risk stratification.
Wai et al. (2017) conducted an observational in Risk of cardioembolic stroke (n=103). Transthoracic echocardiography (TTE) pulsed Doppler vs. Transesophageal echocardiography (TEE) was evaluated on Correlation between TEE and TTE LAA emptying velocity (LAA E) (r = 0.88, p=<0.001). Transthoracic echocardiography assessment of left atrial appendage emptying velocity strongly correlated with transesophageal echocardiography (r = 0.88, P < 0.001) and predicted thrombus or SEC.
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