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Heart Failure - Cause

Heart failure can be caused by any problem that damages your heart or affects how well it works.

Problems that damage the heart muscle

Things that damage the heart's valves

  • Valve problems you've had since birth
  • Infection of a heart valve (endocarditis)
  • Aging
  • Rheumatic fever

Problems with the heart's electrical system

  • Fast, slow, or irregular heart rhythms, including atrial fibrillation
  • Electrical signals that don't flow as they should from the upper to the lower part of the heart (heart block)

Other problems

Certain triggers, such as too much sodium or not taking medicines the right way, may suddenly make heart failure worse. This can sometimes cause deadly problems such as pulmonary edema or cardiogenic shock.

    This information is produced and provided by the National Cancer Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National Cancer Institute via the Internet web site at http:// cancer .gov or call 1-800-4-CANCER.

    WebMD Medical Reference from Healthwise

    Last Updated: March 12, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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