Key result
Global longitudinal left atrial strain and strain rate measured by 2D speckle tracking echocardiography significantly correlated with LA passive emptying fraction (r=0.507, P<0.001).
Why the study?
Does two-dimensional global longitudinal strain and strain rate imaging correlate with left atrial volumetric parameters in subjects with a low probability of cardiovascular disease?
Population
54 subjects with normal treadmill exercise stress echocardiography and no coronary risk factors
Comparison
Two-dimensional speckle imaging for global… vs Left atrial volumetric parameters
Design
Cross-sectional
Authors
Loading...
Supports speckle tracking for LA function in low-risk subjects; leaves open incremental value over volumetrics.
Cross-Sectional (n=54)
Does two-dimensional global longitudinal strain and strain rate imaging correlate with left atrial volumetric parameters in subjects with a low probability of cardiovascular disease?
p-value: p=<0.001
Two-dimensional speckle tracking echocardiography is a feasible and reproducible method for evaluating left atrial function that correlates with traditional volumetric parameters.
Kim et al. (2009) conducted a cross-sectional in Low probability of cardiovascular disease and normal exercise capacity (n=54). Two-dimensional (2D) speckle tracking echocardiography vs. Left atrial volumetric parameters was evaluated on Correlation of global longitudinal left atrial strain and strain rate with left atrial volumetric parameters (p=<0.001). Global longitudinal left atrial strain and strain rate measured by 2D speckle tracking echocardiography significantly correlated with LA passive emptying fraction (r=0.507, P<0.001).
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: