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Subject Area

Anesthesiology and Intensive Care

Article Type

Original Study

Abstract

Objective The aim of the study was to evaluate the prevalence and predictors of renal artery stenosis (RAS) in hypertensive patients undergoing elective coronary angiography. Background Hypertension and ischemic nephropathy are the most important consequences of RAS. Ischemic nephropathy progresses to end-stage renal disease in 6–17% of patients. RAS is the most common potentially reversible disorder leading to renal replacement therapy; in recent years, efforts have been made to determine the prevalence of RAS and its predictors among patients with coronary artery disease. Patients and methods In a cross-sectional study, between March 2013 and October 2016, 200 hypertensive patients, candidates for diagnostic cardiac catheterization, underwent renal angiography before completion of their coronary angiography procedure. A standardized questionnaire was used to collect demographics, cardiac history, indications for cardiac catheterization, and angiographic data, and RAS result was estimated visually by a skilled cardiologist. Results Overall, 200 patients with mean age of 58 ± 7 years were included in the study. Of them, 116 (58%) were male and 84 (42%) were female. The prevalence of RAS was calculated at 22.5%. According to the present study, diabetes mellitus and serum creatinine level were predictors of RAS, whereas other factors included in our study were not. Conclusion According to the present data, we suggest considering renal artery angiography in combination with coronary artery angiography especially in hypertensive patients who are diabetic and those with high serum creatinine level.

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