Does left atrial longitudinal strain by speckle tracking echocardiography improve the estimation of invasively obtained LV filling pressures compared to E/Em ratio in patients with advanced systolic heart failure?
Left atrial longitudinal strain by speckle tracking echocardiography provides a more accurate non-invasive estimation of LV filling pressures than the traditional E/Em ratio in patients with advanced systolic heart failure.
In a group of patients with advanced systolic heart failure, E/Em ratio correlated poorly with invasively obtained LV filling pressures. However, LA longitudinal deformation analysis by STE correlated well with PCWP, providing a better estimation of LV filling pressures in this particular clinical setting.
Cameli et al. (Wed,) studied this question.