Peripheral arterial disease affects 12-20 percent of Americans 65 and older

According to the Society of Interventional Radiologists http://www.sir.org, peripheral arterial disease, or PAD, is a common condition affecting 12-20 percent of Americans age 65 and older that may be a signal of future heart attack and stroke -- and many with the disease may be unaware they have it.

For more than a decade, the Society of Interventional Radiology's national screening program, Legs For Lifehttp://www.legsforlife.com, has helped identify this very serious and potentially life-threatening condition.

An estimated 10 million people in the United States suffer from peripheral arterial disease. PAD develops mostly as a result of atherosclerosis, a condition that occurs when cholesterol and scar tissue buildup, forming a substance called plaque, which narrows and clogs the arteries and slows blood flow to the legs. Since plaque blocks the smaller leg arteries first, PAD is considered a red flag for several life-threatening vascular diseases, such as heart attack (the number one killer in the United States) and stroke. More than 50 percent of PAD patients are asymptomatic and cannot feel the classic warning sign of PAD—leg pain that occurs when walking or exercising and disappears when the person stops the activity. This symptom is typically dismissed as a sign of getting older, as is 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.

In many cases, PAD can be treated with medication (such as blood thinners or drugs that dilate an affected artery), lifestyle changes (such as smoking cessation), diet and a structured exercise program. With early detection, patients could see an interventional radiologist when intervention is most effective and less invasive treatments are still an option. If needed, interventional radiologists can perform minimally invasive angioplasty (the widening of a narrowed or obstructed blood vessel) and/or stenting (the insertion of a tiny mesh tube) to open a blocked artery in the leg and restore blood flow.

A recent study in the Journal of Vascular and Interventional Radiology noted that after a percutaneous vascular intervention (a medical procedure where vascular access is done via needle puncture, rather than by using an open surgical approach) is used to treat PAD, exercise can play an important role in recovery, health and well-being.