Left atrial function index predicts long-term survival in stable outpatients with systolic heart failure

Left atrial (LA) function index (LAFI) is a rhythm-independent index that combines LA emptying fraction (LAEF), adjusted LA volume (LAVi), and stroke volume. We evaluated LAFI as a predictor of long-term survival in outpatients with heart failure with reduced ejection fraction (HFrEF). For 3 years, we followed up 203 outpatients with a left ventricular ejection fraction <40%, who were clinically stable and on optimal therapy. The endpoint was...