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The relationship between renal arterial resistive index (RRI) and renal outcomes in patients with resistant hypertension

Ghafori, M. and Rashedi, A. and Montazeri, M. and Amirkhanlou, S. (2020) The relationship between renal arterial resistive index (RRI) and renal outcomes in patients with resistant hypertension. Iranian Journal of Kidney Diseases, 14 (6). pp. 448-453.

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Abstract

Introduction. There is a mutual relationship between hypertension and renal failure, so that hypertension can be considered as a common finding in patients with end-stage renal disorders. Patients with persistent hypertension despite multiple medications are at high risk for adverse cardiovascular and kidney events. Some studies suggest that there is a correlation between RI and renal function in kidney diseases. Therefore, we conducted a study to investigate the relationship between renal arterial resistive index (RRI) and renal outcomes in patients with resistant hypertension. Methods. This 2-years cross-sectional study was performed on patients with resistant hypertension. All patients undergo GFR, serum Cr and urine Alb tests. Then Doppler ultrasound was performed by a radiologist to measure RRI and was evaluated for the relationship between RRI and renal function. Results. Among 133 patients with resistant hypertension, 57.5 were male and the rest were female. Average age of participants and average RI were 48.26 ± 16.90 and 0.63 ± 0.80, respectively. There was no significant relationship between RI and gender (P > .05). Relationship between RI index with age, GFR, serum creatinine level, and albuminuria was significant in all cases (P < .05). Patients were divided into two groups with RI � 0.7 and RI less than 0.7. Results showed a significant increase in serum creatinine and urinary albumin excretion in group with RI � 0.7 (P < .05), while age, protein exertion level, and GFR in the two groups were not statistically significant (P > .05), despite the difference in the mean. Results of analysis of difference in the mean RI in 3 groups (macro-, micro-, normo-albuminuria) showed no significant difference between them (P > .05). Conclusion. These data demonstrate the clinical importance of renal Doppler that may be an effective way to evaluate the prognosis of renal involvement in resistant hypertension. © 2020, Iranian Society of Nephrology. All rights reserved.

Item Type: Article
Additional Information: cited By 0
Uncontrolled Keywords: albumin; biological marker; creatinine, adult; albumin to creatinine ratio; Article; controlled study; creatinine blood level; cross-sectional study; diastolic blood pressure; Doppler flowmetry; estimated glomerular filtration rate; female; glomerulus filtration rate; human; kidney biopsy; kidney function; major clinical study; male; outcome assessment; prevalence; prospective study; receiver operating characteristic; Renal Arterial Resistive Index; renal artery aneurysm; resistant hypertension; resistive index; risk factor; systolic blood pressure; urinalysis
Subjects: سیستم ادراری WJ
مقالات نمایه شده محققین دانشگاه در سایت ,Web of Science ,Scopus
Divisions: معاونت تحقیقات و فناوری
Depositing User: GOUMS
Date Deposited: 05 Jan 2021 11:04
Last Modified: 05 Jan 2021 11:04
URI: http://eprints.goums.ac.ir/id/eprint/10887

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