Ejection fraction specific to left ventricle
Expansion
Left Ventricular Ejection Fraction
Purpose
Standard measure of left ventricular systolic function
Clinical Context
Left ventricular ejection fraction less than 40 percent defines heart failure with reduced ejection fraction. Serial left ventricular ejection fraction monitoring guides therapy and prognosis.
Related Terms
- EF
- Systolic dysfunction
Key Points
- Left ventricular ejection fraction normal greater than 55 percent; heart failure with reduced ejection fraction defined as ejection fraction less than or equal to 40 percent; heart failure with mildly reduced ejection fraction 41 to 49 percent