Peripheral Arterial Disease (PAD)

PAD is a common circulation problem in which the arteries that carry blood to the legs or arms become narrowed or clogged. This interferes with the normal flow of blood, sometimes causing pain, but often causing no symptoms at all. The most common cause of PAD is atherosclerosis, often called “hardening of the arteries.” Atherosclerosis is a gradual process in which cholesterol and scar tissue build up, forming a substance called “plaque” that clogs the blood vessels. In some cases, PAD may be caused by blood clots that lodge in the arteries and restrict blood flow. Left untreated, this insufficient blood flow will lead to limb amputation in some patients.

In atherosclerosis, the blood flow channel narrows from the buildup of plaque, preventing blood from passing through as needed, restricting oxygen and other nutrients from getting to normal tissue. The arteries also become rigid and less elastic, and are less able to react to tissue demands for changes in blood flow. Many of the risk factors-high cholesterol, high blood pressure, smoking and diabetes-may also damage the blood vessel wall, making the blood vessel prone to diffuse plaque deposits.

Prevalence

  • PAD is a disease of the arteries that affects 10 million Americans.
  • PAD can happen to anyone, regardless of age, but it is most common in men and women over age 50.
  • PAD affects 12-20 percent of Americans age 65 and older.

What are the symptoms of Peripheral Arterial Disease (PAD)?

The most common symptom of PAD is called claudication, which is leg pain that occurs when walking or exercising and disappears when the person stops the activity.

Other symptoms of PAD include: numbness and tingling in the lower legs and feet, coldness in the lower legs and feet, and ulcers or sores on the legs or feet that don’t heal.

Many people simply live with their pain, assuming it is a normal part of aging, rather than reporting it to their doctor.

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Did You Know?

The most common symptom of PAD is leg pain when walking or exercise which improves with rest.