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Depression Health Center

Depression Linked to Peripheral Artery Disease

Being Depressed May Set Stage for PAD, or Vice Versa
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WebMD Health News
Reviewed by Laura J. Martin, MD

April 20, 2012 -- Depression may increase the risk for peripheral artery disease (PAD), which commonly results from narrowed leg arteries, a new study suggests.

The study results "demonstrate that there is an association between depression and PAD," says researcher S. Marlene Grenon, MD. She is an assistant professor of surgery at the University of California, San Francisco. "We know that if you have depression, your risk for PAD is likely related to poor health behaviors like smoking and physical inactivity."

People who are depressed may be more likely to smoke and less likely to exercise and eat a healthy diet, all of which could raise the risk risk of heart disease and PAD.

The findings were presented at the American Heart Association's Arteriosclerosis, Thrombosis, and Vascular Biology 2012 Scientific Sessions in Chicago.

In the study, 1,018 people with heart disease were followed for more than seven years. When the study began, 12% of people with depression had PAD, as did 7% of those who were not depressed.

People who were depressed were more likely to be younger and female. They were also more likely to have lower HDL ("good" cholesterol), high levels of C-reactive protein, which is a sign of inflammation in the body, and a history of heart attack, heart failure, or diabetes. They also tended to smoke and be physically inactive, and were less inclined to take their medications as directed.

Seven percent of depressed people and 5% of those without depression had a PAD-related event during the study period. These included surgery to open blocked leg arteries or other treatments.

What Is PAD?

PAD occurs when arteries away from the heart become narrowed and blocked. The leg and pelvis arteries are most commonly affected. PAD involving the leg arteries can cause pain while walking, climbing stairs, or exercising. This pain usually stops during rest.

Risk factors for PAD are similar to those of heart disease, including smoking, diabetes, high blood pressure, and elevated cholesterol.

PAD treatment includes lifestyle changes -- such as eating a healthy diet, quitting smoking, and getting more exercise -- that are aimed at reducing these risks. Medications to treat conditions that increase risk for PAD and/or surgery to open blocked leg arteries are also options.

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