JUM Track the topics, authors and articles important to you
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by García-Criado, A.
Right arrow Articles by Brú, C.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by García-Criado, A.
Right arrow Articles by Brú, C.
© 2005 by the American Institute of Ultrasound in Medicine
J Ultrasound Med 24:1641-1647 • 0278-4297

Value of Doppler Sonography for Predicting Clinical Outcome After Renal Artery Revascularization in Atherosclerotic Renal Artery Stenosis

Angeles García-Criado, MD, Rosa Gilabert, PhD, MD, Carlos Nicolau, PhD, MD, María Isabel Real, MD, Xavier Muntañá, PhD, MD, Jordi Blasco, MD, Sergi Ganau, MD and Concepción Brú, PhD, MD

Department of Radiology, Hospital Clinic of Barcelona, Barcelona, Spain.

Address correspondence to Angeles García-Criado, MD, Department of Radiology, Hospital Clinic of Barcelona, Villarroel 170, 08036, Barcelona, Spain. E-mail: magarcia{at}clinic.ub.es

Objective. The purpose of this study was to prospectively evaluate the usefulness of Doppler sonography for predicting blood pressure and renal function improvement after percutaneous renal angioplasty in patients with unilateral atherosclerotic renal artery stenosis. Methods. Thirty-six patients with successfully revascularized unilateral atherosclerotic renal artery stenosis were included. Patients were evaluated by Doppler sonography before treatment, with the resistive index (RI) and acceleration being measured in both kidneys. Blood pressure, number of antihypertensive drugs, and serum creatinine concentration were assessed before treatment and thereafter during a 23 ± 15-month (mean ± SD) period. Results. In 20 of the 36 patients (55%), the RI was less than 0.80 before revascularization. After treatment, blood pressure improved in 17 (85%) of those 20 patients and improved in 8 (50%) of 16 patients with an RI of greater than 0.80 (P < .05). Twenty-five patients had renal insufficiency pretreatment, and 11 (44%) had a baseline RI of less than 0.80. Improvement in renal function after angioplasty was shown in 5 (45%) of these 11 patients and in 4 (28.5%) of 14 in the group with high RI (P > .05, not significant). On analysis of acceleration, blood pressure improved in 9 (69%) of 13 patients with acceleration of greater than 3 m/s2 and in 16 (69.5%) of 23 with acceleration of less than 3 m/s2 (P > .05). In patients with renal insufficiency, 5 (50%) of 10 cases with normal baseline acceleration and 4 (27%) of 15 with low acceleration showed improvement in renal function (P > .05). Conclusions. An elevated RI should not exclude patients from a revascularization procedure because, although renal RI does correlate with blood pressure response to revascularization, it is not a useful parameter in predicting renal function outcome. Acceleration has no prognostic value.

Key Words: angioplasty • Doppler sonography • renal artery stenosis

Abbreviations: RAS, renal artery stenosis • RI, resistive index




This article has been cited by other articles:


Home page
 Nephrol Dial TransplantHome page
B. Krumme and M. Hollenbeck
Doppler sonography in renal artery stenosis--does the Resistive Index predict the success of intervention?
Nephrol. Dial. Transplant., March 1, 2007; 22(3): 692 - 696.
[Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2005 by the American Institute of Ultrasound in Medicine.