Renal artery stenosis in older people

Learning points Renal artery stenosis (RAS) is a vascular disease characterised by narrowing of one or more main renal arteries or its branches. Atherosclerosis and fibromuscular dysplasia are two major causes of unilateral RAS. Atherosclerotic RAS (ARAS) is the leading cause of RAS and usually affects the renal artery ostia, proximal one-third of the main renal artery and the adjacent aorta. The gold standard for diagnosing RAS is renal arteriography. However, a variety of less invasive tests are being employed for evaluation for testing purposes. There is a consensus that all with ARAS should be on medical therapy to control