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Heart Failure (cont.)

Cause

Many problems can cause heart failure, including damage to the heart's muscle, valves, or electrical system. These can all affect how well the heart pumps.

Problems that damage the heart muscle

Other things that damage the heart's valves

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.

eMedicineHealth Medical Reference from Healthwise

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