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Heart disease

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Definition

Heart disease is any disorder that affects the heart's ability to function normally. Various forms of heart disease include:

Alternative Names

Cardiovascular disorders

Causes, incidence, and risk factors

The most common cause of heart disease is a narrowing of or blockage in the coronary arteries supplying blood to the heart muscle (coronary artery disease). Some heart diseases are present at birth (congenital heart disease).

Other causes include:

  • Abnormal heart rhythm
  • Abnormal heart valve function
  • High blood pressure (hypertension)
  • Cardiomyopathy - weakening of the heart's pumping ability, often caused by heart disease, viral infection, or toxins