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Renal Artery Stenosis (cont.)

Renal Artery Stenosis Risk Factors and Causes

The most common cause of renal artery stenosis is atherosclerosis, the same condition that causes narrowing of the arteries in coronary heart disease and stroke, and the risk factors are the same as well. Cholesterol plaques build up along the walls of the renal artery and gradually cause narrowing. Risk factors for renal artery stenosis include:

  • smoking,

  • diabetes, and

  • high blood pressure.

Other causes of stenosis (narrowing) of the renal artery include:

  • fibromuscular dysplasia, an abnormal thickening of the muscles of the artery wall, most often seen in young women

  • arteritis or inflammation of the artery

  • aneurysm of the artery

  • compression of the artery by an outside mass; for example, a tumor

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Read What Your Physician is Reading on Medscape

Renal Artery Stenosis »

Specialists have known for a long time that renal artery stenosis (RAS) is the major cause of renovascular hypertension and that it may account for 1-10% of the 50 million people in the United States who have hypertension.

Read More on Medscape Reference »


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