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

Cureus ◽  
2021 ◽  
Author(s):  
Lalitha Padmanabha Vemireddy ◽  
Grace W Ying ◽  
Ammar Aqeel ◽  
Shaji Baig ◽  
Venkata Buddharaju
Keyword(s):  
Renal Artery ◽  
Renal Artery Stenosis ◽  
Resistive Index ◽  
Artery Stenosis ◽  
Renal Resistive Index ◽  
Atherosclerotic Renal Artery Stenosis

Renal artery stenosis: grading with image-directed Doppler US evaluation of renal resistive index.

Radiology ◽  
1994 ◽  
Vol 190 (3) ◽  
pp. 785-790 ◽  
Author(s):  
W B Schwerk ◽  
I K Restrepo ◽  
M Stellwaag ◽  
K J Klose ◽  
C Schade-Brittinger
Keyword(s):  
Renal Artery ◽  
Renal Artery Stenosis ◽  
Resistive Index ◽  
Artery Stenosis ◽  
Renal Resistive Index ◽  
Doppler Us

scholarly journals Ischemic Nephropaty: The Role of the Renal Artery Stenosis Revascularization on Renal Stem Cells

Medicina ◽  
2021 ◽  
Vol 57 (9) ◽  
pp. 944
Author(s):  
Rosario Cianci ◽  
Adolfo Marco Perrotta ◽  
Antonietta Gigante ◽  
Federica Errigo ◽  
Claudio Ferri ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Stem Cells ◽  
Renal Artery ◽  
Renal Artery Stenosis ◽  
Color Doppler ◽  
Resistive Index ◽  
Artery Stenosis ◽  
Atherosclerotic Renal Artery Stenosis ◽  
Single Observation ◽  
Renal Stem Cells

We report the case of a 65-year-old man with acute GFR decline to 37 mL/min and uncontrolled high blood pressure. He was suspected for renovascular hypertension and underwent a renal color Doppler ultrasound scan that detected a bilateral atherosclerotic renal artery stenosis. A digital selective angiography by percutaneous transluminal angioplasty and stenting (PTRAs) was successfully performed. Blood pressure rapidly normalized, GFR increased within a few days, and proteinuria disappeared thereafter. These clinical goals were accompanied by a significant increase of circulating renal stem cells (RSC) and a slight increase of resistive index (RI) in both kidneys. This single observation suggests the need for extensive studies aimed at evaluating the predictive power of RI and RSC in detecting post-ischemic renal repair mechanisms.

scholarly journals Clinical response scores to predict blood pressure and renal function improvement following renal artery stenting for atherosclerotic renal artery stenosis

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
A Kablak-Ziembicka ◽  
A Roslawiecka ◽  
R Badacz ◽  
A Sokolowski ◽  
P Musialek ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Logistic Regression ◽  
Renal Function ◽  
Renal Artery ◽  
Renal Artery Stenosis ◽  
Predictive Models ◽  
Artery Stenosis ◽  
Atherosclerotic Renal Artery Stenosis ◽  
Baseline Serum ◽  
Kidney Length

Abstract Background It is little known about predictors of systolic (SBP) and diastolic (DBP) blood pressure or renal function (eGFR) improvement in patients with atherosclerotic renal artery stenosis (ARAS) undergoing stent-assisted angioplasty (PTA). Therefore, we aimed to build a prediction scores that would indicate characteristics of patient subsets with ARAS most likely to have clinical improvement following PTA. Methods 201 patients who underwent PTA for ARAS (2003–2018) were categorized as eGFR or SBP/DBP responders based on eGFR increase of ≥11 ml/min/1.73m2, decrease of SBP ≥20mmHg and DBP ≥5mmHg at 12-months following PTA. The remaining patients were classified as non-responders. The performance of logistic regression models were evaluated by basic decision characteristics. Continuous data have been transformed into binary coding with help of operating characteristic (ROC) curve. Predictive models have been constructed for each followed by construction of predictive models in each of 3 categories. Results Logistic regression analysis showed that: baseline SBP>145 mmHg, DBP >82 mmHg, previous myocardial infarction and Renal-Aotric-Ratio >5.1 were independent influencing factors of SBP response, with relative risk percentage shares of 69.8%; 12.1%; 10.9%; and 7.2%, respectively (sensitivity: 82%, specificity: 86.3%, positive (PPV):82% and negative (NPV) predictive values: 86.3%). The DBP decrease prediction model included baseline SBP >145 mmHg and DBP >82 mmHg, the ARAS progression, index kidney length >106 mm, and bilateral PTA with respective shares of 35.0%; 21.8%; 18.2%; 13.3% and 11.8%. (sensitivity: 76%, specificity: 77.8%, PPV: 80.7% and NPV: 72.6%). The eGFR increase was associated with baseline serum creatinine >122 μmol/L but eGFR greater than 30 ml/min/1.73m2, index kidney length >98 mm, end-diastolic velocity in index renal artery, renal resistive index <0.74, and requirement for >3 BP medications, with respective shares of 24.4%; 24.4%; 21.2%; 15% and 15% (sensitivity: 33.3%, specificity: 93.5%, PPV: 65.6% and NPV: 78.9%). Conclusions Current study identified clinical characteristics of patients who most likely to respond to PTA for ARAS. The sutability of the score should be verified in a prospective cohort of patients referred to PTA of ARAS Funding Acknowledgement Type of funding source: None

Follow-up of primary Palmaz-Schatz stent placement for atherosclerotic renal artery stenosis

1995 ◽  
Vol 75 (15) ◽  
pp. 1051-1055 ◽  
Author(s):  
Gerald Dorros ◽  
Michael Jaff ◽  
Aditiya Jain ◽  
Christine Dufek ◽  
Lynne Mathiak
Keyword(s):  
Renal Artery ◽  
Renal Artery Stenosis ◽  
Stent Placement ◽  
Artery Stenosis ◽  
Atherosclerotic Renal Artery Stenosis

scholarly journals Preserved Oxygenation Despite Reduced Blood Flow in Poststenotic Kidneys in Human Atherosclerotic Renal Artery Stenosis

Hypertension ◽  
2010 ◽  
Vol 55 (4) ◽  
pp. 961-966 ◽  
Author(s):  
Monika L. Gloviczki ◽  
James F. Glockner ◽  
Lilach O. Lerman ◽  
Michael A. McKusick ◽  
Sanjay Misra ◽  
...  
Keyword(s):  
Blood Flow ◽  
Renal Artery ◽  
Renal Artery Stenosis ◽  
Artery Stenosis ◽  
Atherosclerotic Renal Artery Stenosis
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