Association of LAAWV values with the GLS
LV GLS specifically captures the longitudinal shortening of the left
ventricle, primarily reflecting the performance of myofibers in the
vulnerable sub-endocardium. As a result, it can detect subtle changes in
myocardial tissue and is capable of predicting the recovery of LVEF over
time. Numerous other studies have demonstrated that LV GLS serves as an
independent and important prognostic predictor, including hospital
readmission, in patients with heart failure and reduced systolic
function. Our study also suggests that in patients with heart failure
and reduced ejection fraction, the velocity of the left atrial appendage
also significantly decreases in parallel with the LV systolic function,
similar to LV GLS. This observation reinforces the significance of LAAW
velocity as a valuable parameter in assessing cardiac function and
predicting clinical outcomes in heart failure patients with reduced
ejection fraction.