Exercise may be better than stents for PAD patients

Supervised exercise was shown to be more effective than stenting or medication for improved walking ability in patients with peripheral artery disease. The findings from a national study were reported today at the 2011 American Heart Association Scientific Sessions meeting. Rhode Island Hospital is one of hospitals participating in the national CLEVER study.

Peripheral artery disease (PAD) is a condition in which plaque builds up in the arteries and impacts blood flow, especially to the legs. It is estimated that between 10 and 12 million people suffer from PAD in the United States. One symptom of PAD is known as claudication, a painful cramping of the that limits the patient's ability to walk. It affects nearly 2 million people who suffer from PAD, and results in a and poor quality of life.

Current guidelines for the treatment of claudication include pharmacotherapy, rehabilitation and lower extremity revascularization using stents. Timothy Murphy, M.D., a radiologist who heads the vascular disease research center at Rhode Island Hospital, was the principal investigator for the Rhode Island Hospital arm of the CLEVER (Claudication: Exercise Versus. Endoluminal Revascularizaton) Study, a multi-center study sponsored by grants from the National Heart Lung and Blood Institute. It is the first multi-center clinical trial to compare the treatment strategies. He is also the lead author of the paper published in the November issue of the journal Circulation.

The research group reported that of 111 patients studied in the , the most effective treatment proved to be supervised exercise based on the results of a treadmill test taken at baseline and again at six months. Patients who were in the supervised improved by a mean of 4.6 minutes in the treadmill test, while the group who received stents improved by a mean of 2.5 minutes. The researchers also found, however, that self-reported quality of life measurements proved to be higher in the group who received stents, even though their ability to walk did not improve as greatly as the group who received supervised exercise rehabilitation.

Murphy says, "This study demonstrates that for patients with claudication that supervised exercise provides a superior improvement in treadmill walking performance compared to both primary aortoiliac stenting and optimal medical care. This benefit is associated with an improvement in self-reported walking distance, an increase in HDL and a decrease of fibrinogen." He adds, however, "Secondary measures of treatment efficacy such as self-reported physical function measures and pedometer measures of community walking favored primary over supervised exercise."

Alan T. Hirsch, M.D., of the Lillehei Heart Institute at the University of Minnesota Medical School, presented the findings today. Hirsch comments, "At a time when health care costs are appropriately in sharp public focus, this study provides an avenue by which we could -- if we choose -- achieve a major positive set of health outcomes at low risk and at lower cost."

Murphy and the researchers believe that more studies are necessary, but also believe that supervised exercise may be an effective recommended treatment for PAD patients with . Murphy comments, "The CLEVER team will be reporting further outcomes from this study based on an 18-month review."

add to favorites email to friend print save as pdf

Related Stories

Exercise improves leg pain caused by arterial disease

Feb 02, 2009

Patients with leg pain caused by arterial disease may be able to forego treatment of the affected artery by participating in hospital-supervised exercise, according to a new study published in the February issue of Radiology.

Can stem cell boost, treadmill use improve artery disease?

Nov 01, 2011

(Medical Xpress) -- Northwestern Medicine researchers have launched a clinical trial testing a new combination of treadmill exercise and drug regimen to see if the two together improve the walking ability of people with peripheral ...

Recommended for you

Most seniors eligible for statin Rx under new guidelines

17 hours ago

(HealthDay)—Most older Americans qualify for treatment with statins under new guidelines for the treatment of blood cholesterol released late last year by the American College of Cardiology and the American ...

Asymptomatic atherosclerosis linked to cognitive impairment

Nov 25, 2014

In a study of nearly 2,000 adults, researchers found that a buildup of plaque in the body's major arteries was associated with mild cognitive impairment. Results of the study conducted at the University of Texas (UT) Southwestern ...

User comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.