What is the prevalence of renal artery stenosis (RAS) in the US?

Updated: Nov 02, 2020
  • Author: Bruce S Spinowitz, MD, FACP; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Answer

In patients with mild hypertension, the prevalence of renal artery stenosis is probably less than 1%, while in those with acute as high as 10 % to 40% in patients with acute, severe, or refractory hypertension, the prevalence may be as high as 10-40%. [10]  Studies suggest that ischemic nephropathy may be responsible for 5-22% of advanced kidney disease in all patients older than 50 years.

A review of a random sample of Medicare claims data (patients 67 years of age and older) found that the incidence of atherosclerotic renovascular disease was 3.7 per 1000 patient-years. The prevalence decreased with advancing age; the adjusted odds ratio (OR) was 0.86 for patients age 75 to 84 years and 0.44 for those age ≥85 years, compared with those age 67 to 74 years. The prevalence was highest in whites (adjusted OR for Blacks, 0.66). [11]


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