Prognostic implications of biventricular and left radial strain in heart failure

Abstract

Abstract Background Chronic heart failure (CHF) is associated with the high ventricular filling pressures with subsequent negative impact on the left (LV) and right ventricular (RV), and left atrium (LA) mechanics, and pulmonary vasculature. All these could lead to poor long-term outcome. Purpose Assess the prognostic implications of LA, LV and RV mechanical dysfunction, and pulmonary hypertension, in CHF based on advanced echocardiographic technology. Methods A total of 2110 CHF patients were retrospectively reviewed and enrolled for the analyses. The 2D-Speckle tracking echocardiographic analysis was used to measure the peak LV, RV and LA longitudinal strain. The long-term outcomes were evaluated for all-cause CVS outcomes and recurrent hospitalization. Results For the 941eligible patients [mean age: 61±4; 62% male sex], 244 reached the combined endpoint. Population was divided into three groups based on the mean pulmonary artery systolic pressure (mPASP): Group 1, 25<mPASP≤40 mmHg; Group 2, 40<mPASP≤55 mmHg and Group 3, >mPASP 55 mmHg. Mean follow-up was 2.5±0.6 years. The higher mPASP was demonstrated in those with higher left atrial volume ndex (LAVI), NYHA ≥II class, pulmonary diseases, presence of at least moderate mitral and/or tricuspid regurgitation (TR) grades, significantly lower LVEF, lower strain values (LA, LV, RV), and tricuspid annular plane systolic excursion (TAPSE), p<0.001). High mPASP, lower LVEF and RV dysfunction were independent predictors of survival after multiple adjustments using different models. Conclusions Multiple factors are associated with poor outcomes in CHF; particularly the presence of RV dysfunction, severe PH and severely impaired, which would guide further manage of CHF and to consider other treatment options including device therapy or even transplantation. All these factors could strongly influence the risk stratification of patients with CHF Funding Acknowledgement Type of funding sources: None.