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Home Knowledge Center Wellness Library Heart Failure Types

Heart Failure Types

Overview

Heart failure means that your heart muscle does not pump as much blood as your body needs. Failure doesn't mean that your heart has stopped. It means that your heart is not pumping as well as it should.

There is more than one type of heart failure, so you might hear your doctor call it different names. The types are based on what problem in the heart is causing it to not pump blood as well. More than one problem might be causing your heart failure.

People with heart failure can have more than one type. For example, left-sided heart failure can cause right-sided heart failure. In such cases, heart failure doesn't have more than one cause, but rather the heart failure is affecting the heart in more than one way. In other cases, there may be two separate problems, such as mitral regurgitation causing left-sided heart failure but tricuspid regurgitation causing right-sided heart failure.

Left-sided heart failure

For most people, heart failure affects the left side of the heart. This is the side that pumps blood to the body. The heart's lower chamber, called the left ventricle, either cannot pump blood as well, or it cannot fill with blood normally. The measurement of how well the heart pumps blood is called the ejection fraction. The ejection fraction is used to help diagnose the type of heart failure.

  • Heart failure with reduced ejection fraction (systolic heart failure ) happens when the muscle of the left ventricle cannot pump blood well. The ejection fraction is lower than normal.
  • Heart failure with preserved ejection fraction (diastolic heart failure ) happens when the left ventricle cannot fill properly with blood during the diastolic (filling) phase. The ejection fraction is normal or not very much lower than normal. The ventricle pumps well, but it pumps out less blood than normal.

Right-sided heart failure

Right-sided heart failure means that the right side of the heart is not pumping blood to the lungs as well as normal.

High-output heart failure

High-output heart failure can happen when the body's need for blood is unusually high. The heart may be working well otherwise, but it cannot pump out enough blood to keep up with this extra need. This type happens to a small number of people who have heart failure.

This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

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