title: Renal artery stenting: patient selection post-CORAL.
abstract: Randomized trials (RCT) show no meaningful improvement in hypertension control with renal artery stenting (RAS) compared to medical therapy alone in patients with largely moderate hypertension and intermediate grade stenoses. Observational studies of patients with severe hypertension and high-grade stenoses on multiple medications report blood pressure improvement after RAS. Angiographic severity of renal artery stenosis has poor correlation with functional measures of flow impairment. Renal frame count may be a useful simple measure of flow impairment, predicting beneficial blood pressure response to RAS. If confirmed in other studies, renal frame count > 30 and a combination of predictive clinical factors may help guide selection of patients for RAS in contemporary practice.
authors.affiliation: Heart South Cardiovascular Group, Alabaster, Alabama.
authors.forename: J Hudson
authors.initials: JH
authors.lastname: Segrest
authors.affiliation: Heart South Cardiovascular Group, Alabaster, Alabama.|Department of Biostatistics, University of Alabama at Birmingham, Birmingham, Alabama.
authors.forename: William B
authors.initials: WB
authors.lastname: Hillegass
mesh_terms: D057510:Endovascular Procedures / Q000295:instrumentation*; D005260:Female; D006801:Humans; D006978:Hypertension, Renovascular / Q000000981:diagnostic imaging* / Q000628:therapy*; D008297:Male; D011859:Radiography; D012078:Renal Artery Obstruction / Q000000981:diagnostic imaging* / Q000628:therapy*; D012079:Renal Circulation; D015607:Stents