TY - CHAP M1 - Book, Section TI - Hemodynamic Assessment of Renal Artery Stenosis A1 - Ferrara, Angela A1 - Adjedj, Julien A1 - Bruyne, Bernard De A2 - Samady, Habib A2 - Fearon, William F. A2 - Yeung, Alan C. A2 - King III, Spencer B. PY - 2017 T2 - Interventional Cardiology, 2e AB - Renal artery stenosis (RAS) is the main cause of “secondary” arterial hypertension. RAS is found in 0.5% to 5% of hypertensive patients. RAS is most often atherosclerotic in nature and less frequent due to fibromuscular hyperplasia.1 The prevalence of RAS is approximately 2% in unselected patients but reaches 40% in older patients or in patients with multiple risk factors for atherosclerosis or with documented atherosclerosis in other vascular territories.2,3 Due to improvements in vascular imaging by ultrasound, magnetic resonance imaging, computed tomography, and angiography and due to the larger proportion of elderly patients undergoing coronary angiography, the finding of a RAS on angiography is a frequent occurrence. “Drive-by” renal angiograms are frequently performed during coronary angiography procedures. However, as is the case in the coronary arteries, the relationship between anatomic findings and the functional repercussion of a given stenosis is poor.4 SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - accesscardiology.mhmedical.com/content.aspx?aid=1146595261 ER -