Peripheral artery disease is a widespread and vastly underdiagnosed disease, affecting nearly 12 million Americans, mostly those over the age of 50, though the incidence increases with age. The most common symptom of peripheral arterial disease is claudication, which is pain, fatigue or aching in the legs when someone attempts to walk. This is due to the poor blood flow to the muscles in the legs. Beyond simply the discomfort in the legs, we know that having peripheral vascular disease makes one much more likely to have poor cardiovascular outcomes. Among patients with symptomatic peripheral arterial disease, more than 10% will have a stroke, heart attack, or die from a cardiovascular cause within two years. And when we look longer term, the statistics are even more sobering. For patients with symptomatic peripheral arterial disease, their mortality rate is 25% at 5 years and 50% at 10 years. When looking at patients with critical limb ischemia (those who have pain at rest or wounds on their feet), the numbers are even worse: they have a mortality rate of 50% at 5 years and 90% at 10 years.
Approximately 12 million Americans suffer from peripheral artery disease (PAD), yet general awareness of the disease is at 25%. Patients over the age of 50 with a history of smoking, high cholesterol, diabetes, hypertension, and heart disease are at the greatest risk. A staggering 50% of PAD patients have unrecognized symptoms that may progress directly to severe disease.
Most people are aware that atherosclerosis can cause blockages in the coronary arteries, resulting in chest pain or heart attack, or in the carotid arteries, precipitating a stroke. But atherosclerosis can lead to another serious but often under-diagnosed condition: peripheral arterial disease (PAD). Defined as atherosclerotic obstruction of the arteries to the lower extremities, PAD causes leg pain and is associated with other cardiovascular disease. Although lower extremity PAD affects an estimated 12 to 20 million people in the United States, only four to five million of them are experiencing symptoms.
Early detection of coronary artery disease is a signiﬁcant problem. One third of deaths after 35 are secondary to cardiovascular disease. One half of middle aged men and one third of middle aged women will develop coronary artery disease. Currently our ability to detect early disease is limited. By the time symptoms occur there is usually 70% obstruction of the coronary artery. Data from autopsies on Korean War casualties indicate initial signs of development of coronary plaque in the early 20’s of age. Theoretically it would seem appropriate to begin prevention therapy as soon as possible but who should get it? Obviously, the patients with known vascular disease and equivalents such as diabetes would need this therapy. Those without established disease need an estimate of their risk.
You may not be getting all you can out of your browsing experience
and may be open to security risks!
Consider upgrading to the latest version of your browser or choose on below: