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Peripheral vascular disease (PVD) refers to a variety of conditions that primarily affect the arteries of the body, with the exception of the coronary arteries that supply blood to the heart. (Those are covered in the article on cardiovascular disease.) The most common areas for PVD are the arteries of the legs and upper arms, the carotid (neck) arteries, the abdominal aorta and its branches, and the renal (kidney) arteries.
The cause of most types of PVD is hardening of the arteries (atherosclerosis), which itself has many causes. Conditions affecting the veins, such as chronic venous insufficiency, varicose veins, and hemorrhoids, are not usually included in PVD.
PVD of the carotid arteries is a major cause of stroke. Intermittent claudication refers to pain in the lower legs after walking short distances and is caused by PVD of the leg arteries. One cause of erectile dysfunction may be PVD of the penis. Raynaud’s disease is a painful condition caused by spasms of arteries after exposure to cold. Thromboangiitis obliterans (TAO), also known as Buerger’s disease, is an uncommon PVD that occurs in both arteries and veins. This condition causes tender areas of inflammation in the arms or legs, followed by cold hands or feet.
Aneurysm is a ballooning of an artery due to weakening of the blood vessel walls. Aneurysms may be an inherited disorder or may be due to atherosclerosis.1, 2 The most common aneurysm is abdominal aortic aneurysm (AAA), which occurs in the large artery that carries blood from the heart to the lower body. AAA is much more common in men, and risk increases with age. Large AAAs are usually surgically repaired because they can undergo life-threatening ruptures.
People with peripheral vascular disease may have symptoms of pain, aching, cramping, or fatigue of the muscles in the affected leg that are relieved by rest and worsened by elevation. Other people with peripheral vascular disease may have swollen feet and ankles accompanied by a dull ache made worse with prolonged standing and relieved by elevation. People with chronic peripheral vascular disease may have darkened areas of skin, leg ulcers, and varicose veins.
People with TAO are usually heavy smokers, and this is considered a major cause of the disease.3 It is important for people with TAO to quit smoking.
Intravenous chelation therapy has been reported to be an effective treatment for PVD.4, 5 A partially controlled study reported improvements after ten chelation treatments.6 However, two double-blind studies found no difference between chelation therapy and a placebo in patients with intermittent claudication.7, 8
Preliminary reports suggest acupuncture may reduce pain and improve blood flow in TAO,9, 10 but controlled studies are needed to better evaluate these claims.
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The information presented in Aisle7 is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. Self-treatment is not recommended for life-threatening conditions that require medical treatment under a doctor's care. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires June 2014.