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Coronary Artery Disease

Coronary Artery Disease - Causes and Risk Factors


Coronary artery disease is caused by atherosclerosis or hardening of the arteries due to old age. In atherosclerosis, plaque build-up in the arteries is made up of fat, cholesterol, calcium, and other substances from the blood.

Plaque build-up in the arteries often begins in childhood. Over time, plaque build-up in the coronary arteries can:

  • Narrow the arteries, reducing the amount of blood and oxygen reaching the heart muscles
  • Block the arteries completely which stops the flow of blood to the heart muscle
  • Cause blood clots to form which can block the arteries that supply blood to the heart muscle.

Risk Factors

The risk factors that can contribute to coronary artery disease include:

  • Diabetes mellitus
  • High blood pressure
  • High cholesterol
  • Obesity
  • Sedentary lifestyle and a lack of physical activity
  • Smoking

Coronary Artery Disease - Preparing for surgery

Coronary Artery Disease - Post-surgery care

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