|ESC (9)||The following 4 criteria are required: 1) symptoms typical of HF; 2) signs typical of HF; 3) normal or only mildly reduced LVEF and LV not dilated; and 4) relevant structural heart disease (LV hypertrophy/LA enlargement) and/or diastolic dysfunction.|
|ACC/AHA: HFpEF (6)||Diastolic HF. Multiple criteria have been used; exclude other potential noncardiac causes of symptoms suggestive of HF.|
|ACC/AHA: EF 41%–49%||Borderline or intermediate EF; these patients have similar characteristics, treatment patterns, and outcomes to those with HFpEF|
|ACC/AHA: improved EF||Patients previously with HFrEF; improved or recovered EF clinically distinct from patients with preserved or reduced EF.|
|HFSA (7)||Patients with EF ≥50% with symptoms suggestive of HF. Use echocardiography, ECG, stress imaging, or cardiac catheterization to distinguish HF with preserved LVEF and other cardiac disorders.|
ACC = American College of Cardiology; AHA = American Heart Association; ECG = electrocardiogram; ESC = European Society of Cardiology; HF = heart failure; HFpEF = heart failure with preserved ejection fraction; HFrEF = heart failure with reduced ejection fraction; HFSA = Heart Failure Society of America; LA = left atrial; LV = left ventricle; LVEF = left ventricular ejection fraction.