The use of left ventricular ejection fraction in the diagnosis and management of heart failure. A clinical consensus statement of the Heart Failure Association (HFA) of the ESC, the Heart Failure Society of America (HFSA), and the Japanese Heart Failure Society (JHFS).

This clinical consensus statement revisits the role of left ventricular ejection fraction (LVEF) as a measurement of cardiac function, a prognostic marker and a major criterion to classify patients with heart failure, and gives new advice for clinical practice. Heart failure is traditionally classified on the basis of LVEF thresholds and this has major implications for treatment recommendations. However, the reproducibility of LVEF measurement is poor and its prognostic and diagnostic value lessens when it is above 45%, with no relationship with the severity of either cardiac dysfunction or outcomes at higher values. These limitations dictate the need for a more comprehensive approach to classify and assess heart failure focusing more on the trajectory of LVEF rather than to its absolute value. Furthermore, the assessment of LVEF is not required for the initiation of treatments like sodium-glucose cotransporter 2 inhibitors, mineralocorticoid receptor antagonists and diuretics in patients with suspected de novo heart failure and elevated N-terminal pro-B-type natriuretic peptide levels. Future research utilizing advanced imaging techniques and biomarkers which can better characterize myocardial structure, metabolism and performance may facilitate the identification of alternative therapeutic targets and better ways to monitor heart failure therapies across the entire spectrum of LVEF.