As the exact range of normal function is difficult to define and the left ventricular function is not thought to be entirely normal in these patients, the term 'HFpEF' has now been adopted.
The term 'heart failure with normal ejection fraction' (HFnEF) was used briefly, although newer imaging techniques have confirmed that systolic function in HFpEF patients is not completely normal, with reduced long axis function and extensive but subtle changes on exercise.
However, diastolic dysfunction has been shown not to be unique to HFpEF, as evidence of diastolic dysfunction may also be found in systolic heart failure
Heart failure with preserved ejection fraction (HFpEF) was previously referred to as 'diastolic' HF. This was in comparison to 'systolic' HF, which corresponded with heart failure with reduced ejection fraction (HFrEF).
Heart failure (HF) is a complex clinical syndrome resulting from the impaired ability of the heart to cope with the metabolic needs of the body, resulting in breathlessness, fatigue, and fluid retention.
