You may have a greater risk of developing an enlarged heart if you have any of the following risk factors:

  • High blood pressure. Having a blood pressure measurement higher than 140/90 millimeters of mercury puts you at an increased risk of developing an enlarged heart.
  • A family history of enlarged hearts or cardiomyopathy. If an immediate family member, such as a parent or sibling, has had an enlarged heart, you may be more susceptible to developing the condition.
  • Blocked arteries in your heart (coronary artery disease). With this condition, fatty plaques in your heart arteries obstruct blood flow through your heart vessels, which can lead to a heart attack. When a section of heart muscle dies, your heart has to pump harder to get adequate blood to the rest of your body, causing it to enlarge.
  • Congenital heart disease. If you're born with a condition that affects the structure of your heart, you may be at risk of developing an enlarged heart.
  • Valvular heart disease. The heart has four valves — aortic, mitral, pulmonary and tricuspid — that open and close to direct blood flow through your heart. Conditions that damage the valves may cause the heart to enlarge.
  • Heart attack. Having a heart attack increases your risk of developing an enlarged heart.
Apr. 03, 2014

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