Heart failure with reduced ejection fraction

Systolic Dysfunction
HFrEF is known as a "systolic dysfunction" due to reduced pumping function from the left ventricle. EF less than or equal to 40 percent is indicative of poor pumping function.
SpecialtyCardiology

Heart failure with reduced ejection fraction (HFrEF, hef-REF) is a form of heart failure in which the ejection fraction is reduced. This is defined as a left ventricular ejection fraction (LVEF) of 40% or less. About half of heart failure patients have a reduced ejection fraction. Other types of heart failure are heart failure with mildly reduced ejection fraction (HFmrEF, LVEF between 40% and 50%) and heart failure with preserved ejection fraction (HFpEF, LVEF 50% or higher).

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