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Case Reports
. 2021 Apr 29;13(4):e14755.
doi: 10.7759/cureus.14755.

Is the Renal Resistive Index a Marker for Revascularization in Atherosclerotic Renal Artery Stenosis?

Lalitha Padmanabha Vemireddy  1 , Grace W Ying  1 , Ammar Aqeel  1 , Shaji Baig  2 , Venkata Buddharaju  3
Affiliations
Case Reports

Is the Renal Resistive Index a Marker for Revascularization in Atherosclerotic Renal Artery Stenosis?

Lalitha Padmanabha Vemireddy et al. Cureus. .

Abstract

Renal artery stenosis (RAS) is one of the major causes of resistant/malignant hypertension. It can be described as atherosclerotic or non-atherosclerotic. Atherosclerotic RAS comprises almost 90% of all RAS cases and is a prevalent disease of the elderly. Multiple risk factors contribute to atherosclerosis development, which leads to the release of renin and aldosterone, causing resistant/malignant hypertension. Early recognition is prudent but challenging as there are no early clinical signs. We believe that renal resistive index with supportive clinical, laboratory, and imaging modalities can help select revascularization patients.

Keywords: atherosclerotic renal artery; renal artery stenosis; renal artery stenting; renal resistive index.

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Conflict of interest statement

The authors have declared that no competing interests exist.

Figures

Figure 1
Figure 1. Right renal artery angiogram showing stenosis of the right renal artery (red arrow) close to the origin from descending aorta
Figure 2
Figure 2. Right renal angiogram showing renal artery stent (red arrow) with no residual stenosis
Figure 3
Figure 3. CTA abdomen demonstrating a high-grade stenosis of the right renal artery origin (red arrow) from aorta and >50% stenosis of the left renal artery (blue arrow)
CTA - Computed tomographic angiography.
Figure 4
Figure 4. Right renal angiogram showing stenosis of the right renal artery (red arrow)
Figure 5
Figure 5. Right renal angiogram showing right renal artery with stent (red arrow) and no residual stenosis
See this image and copyright information in PMC

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