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Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.
World J Nephrol. Sep 25, 2026; 15(3): 124524
Published online Sep 25, 2026. doi: 10.5527/wjn.124524
Renal artery stenting for atherosclerotic renal artery stenosis: A review of contemporary data
Bill S Majdalany, Richard T Solomon, Joshua Kallen, Alan Massouh, Geoffrey M Scriver, Anant D Bhave, Christopher S Morris, Andrew E Warfield
Andrew E Warfield, Christopher S Morris, Anant D Bhave, Geoffrey M Scriver, Alan Massouh, Joshua Kallen, Bill S Majdalany, Department of Radiology, University of Vermont Medical Center, Burlington, VT 05401, United States
Richard T Solomon, Department of Nephrology, University of Vermont Medical Center, Burlington, VT 05401, United States
Author contributions: Warfield AE, Morris CS, and Majdalany BS contributed to concept, data collection and analysis; Warfield AE and Majdalany BS contributed to first draft and revision; Bhave AD, Scriver GM, Massouh A, Kallen J, and Solomon RT contributed to manuscript editing. All authors have read and approved the final manuscript.
AI contribution statement: No AI tools were used in the preparation of this manuscript.
Conflict-of-interest statement: All the authors report no relevant conflicts of interest for this article.
Corresponding author: Bill S Majdalany, MD, FSIR, Professor, Department of Radiology, University of Vermont Medical Center, 111 Colchester Avenue Patrick 127, Burlington, VT 05401, United States. bill.majdalany@uvmhealth.org
Received: June 18, 2026
Revised: July 10, 2026
Accepted: July 28, 2026
Published online: September 25, 2026
Processing time: 57 Days and 6.2 Hours
Abstract

Renal artery stenting has been less frequently performed following the results of the Cardiovascular Outcomes in Renal Atherosclerotic Lesions trial. In this trial, stenting demonstrated no benefit over medical therapy in a composite outcome including mortality as well as cardiovascular and renal events. However, these findings must be interpreted in the context of the study population, which included many patients less likely to benefit from intervention due to relatively mild renal artery stenosis, as well as less severe hypertension and renal dysfunction. More recent investigations have focused on identifying subgroups of patients who may benefit from revascularization. Identified subgroups include patients with high systolic blood pressure, diastolic hypertension, worsening kidney function, greater antihypertensive burden, flash pulmonary edema, and mild-range proteinuria. Many of these variables illustrate a clinical picture of a patient with severe ischemic kidney disease leading to problems with hypertension and volume regulation that has not yet irreparably damaged the renal parenchyma. Deciding which patients fit into this picture, and therefore should be stented, presents a challenge. This review synthesizes the current evidence surrounding these predictive variables and explores how they may be integrated into clinical decision-making.

Keywords: Renal artery stenosis; Stenting; Hypertension; Rapidly declining kidney function; Flash pulmonary edema

Core Tip: Patients likely to benefit from renal artery stenting are those with severe anatomic renovascular disease (stenosis > 80% and especially > 90% often bilaterally or in a single functioning kidney) and severe manifestations of that disease (high systolic and diastolic blood pressure despite at least 3 medications, rapidly declining kidney function with low levels of proteinuria, or flash pulmonary edema without other pathophysiologic explanations. These patients were not included in prior randomized controlled trials and represent a high-risk subset of patients with atherosclerotic renovascular stenosis. Survival benefits may be achieved especially in patients stented for rapidly declining kidney function.

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