What Is Ischemic cardiomyopathy?

Ischemic cardiomyopathy (CM) is the most common type of dilated cardiomyopathy. In Ischemic CM, the heart's ability to pump blood is decreased because the heart's main pumping chamber, the left ventricle, is enlarged, dilated and weak. This is caused by ischemia - a lack of blood supply to the heart muscle caused by coronary artery disease and heart attacks.

What are the symptoms of ischemic CM?

Symptoms may include:

  • Shortness of breath
  • Swelling of the legs and feet (edema)
  • Fatigue (feeling overly tired), inability to exercise, or carry out activities as usual
  • Angina (chest pain or pressure that occurs with exercise or physical activity and can also occur with rest or after meals) is a less common symptom
  • Weight gain, cough and congestion related to fluid retention
  • Palpitations or fluttering in the chest due to abnormal heart rhythms (arrhythmia)
  • Dizziness or lightheadedness
  • Fainting (caused by irregular heart rhythms, abnormal responses of the blood vessels during exercise, without apparent cause)
  • Learn more about heart failure symptoms

What causes Ischemic CM?

Major risk factors of heart disease, such as family history, high blood pressure, smoking, diabetes, high blood cholesterol, and obesity can also place one at increased risk for cardiovascular disease and ischemic cardiomyopathy.

Last reviewed by a Cleveland Clinic medical professional on 12/07/2018.

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