Intrarenal resistive index conundrum: systemic atherosclerosis versus renal arteriolosclerosis

Autor: Gabriel Ștefan, Cosmin Florescu, Alexandru-Anton Sabo, Simona Stancu, Gabriel Mircescu
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Renal Failure, Vol 41, Iss 1, Pp 930-936 (2019)
Druh dokumentu: article
ISSN: 0886-022X
1525-6049
0886022X
DOI: 10.1080/0886022X.2019.1674159
Popis: Background: We aimed to evaluate the relationship between biopsy-proven kidney lesions, subclinical markers of atherosclerosis and intrarenal resistive index (RRI) in chronic kidney disease (CKD) patients. Methods: This cross-sectional, single-center study prospectively enrolled 44 consecutive CKD patients (57% male gender, 54.1 (95%CI, 49.7–58.6) years, median eGFR 28.1 (15.0–47.7) mL/min) diagnosed by renal biopsy during 6 months in our clinic. RRI, carotid intima-media thickness (IMT), Kauppila score for abdominal aortic calcification (AACs) were assessed. Traditional and nontraditional atheroscleosis risk factors were also evaluated. Results: Most of the patients had a diagnosis of glomerular nephropathy, with IgA nephropathy and diabetic nephropathy being the most frequent. RRI increased proportionally with CKD stages. Patients with RRI >0.7 (39%) were older, had diabetic and vascular nephropathies more frequently, higher mean arterial blood pressure, increased systemic atherosclerosis burden (IMT and AACs), higher percentage of global glomerulosclerois, GBM thickness, arteriolosclerosis and interstitial fibrosis/tubular atrophy. RRI directly correlated with age (rs = 0.55, p 0.7. Conclusion: The analysis of RRI may be useful in the evaluation of the general vascular condition of the patient with CKD, supplying information about both microvascular and macrovascular impairment. Moreover, RRI correlates well with renal histopathologic characteristics, particularly with arteriolosclerosis.
Databáze: Directory of Open Access Journals
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