Low Ejection Fraction(Heart Function)


Ejection fraction, or EF, is a measurement that describes how well your heart functions. It refers to the percentage of blood that leaves your heart with each contraction. This measurement helps determine how effectively your heart pumps with every heartbeat. If you’re healthy, your EF is between 55% and 70%.

Doctors usually measure the ejection fraction of your left ventricle (LVEF), the heart chamber that pumps blood to your entire body. (Your right ventricle pumps blood to your lungs.) If your LVEF drops below 35%, you may be at risk for dangerous arrhythmias or sudden cardiac death .

Lots of things can cause low EF, such as a heart attack, coronary artery disease, cardiomyopathy, heart valve disease and systolic heart failure.


Symptoms of low ejection fraction may include:
  • Fatigue
  • Feeling full or bloated 
  • Heart palpitations
  • Loss of appetite 
  • Nausea
  • Reduced ability to exercise
  • Shortness of breath
  • Swelling


Services & Treatment

If you’re diagnosed with low ejection fraction, your doctor will likely recommend healthy lifestyle changes such as regular exercise, weight loss, quitting smoking or reducing salt or fluid intake. Your doctor might also prescribe medications such as beta blockers or diuretics. 

In some cases, your doctor may recommend a biventricular pacemaker  or an implantable cardiac defibrillator.  A heart transplant may be another option.

Our Heart Failure Program provides a wide spectrum of services to help your specific heart needs. We can help you get – and stay – heart healthy.

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