FREQUENCY AND PREDICTORS OF RENAL ARTERY STENOSIS IN PATIENTS WITH CORONARY ARTERY DISEASE
AbstractBackground: Renal artery stenosis (RAS) is a common finding in patients undergoing coronaryangiography. We designed this study to look for the frequency and any predictors of renal arterystenosis in patients with coronary artery disease (CAD). Methods: A total of 201 consecutive patientswith CAD confirmed by coronary angiography underwent an abdominal aortogram in the same sittingto screen for RAS. Patient demographics and co-morbidities were analysed for any association withRAS. Results: Forty-one of the patients were female (20.4%); ninety patients were hypertensive(44.8%); 49 patients (24.4%) were smokers; 19 patients (9.5%) had renal insufficiency; 88 patients(43.8%) had high cholesterol levels; 44 patients (21.9%) were diabetic. Thirty-two patients (15.9%) hadsingle coronary artery disease, 59 patients (29.4%) had two vessel disease, and 110 patients (54.7%)had three vessel disease. Significant renal artery stenosis (50% stenosis) was present in 26 patients(12.9%). Among the variables studied, only female gender was found to be associated with a higherfrequency of renal artery stenosis (24.39% vs 10.0%, p=0.01). Conclusions: The frequency of renalartery stenosis in patients with coronary artery disease is 12.9%. Female gender is associated with ahigher frequency of renal artery stenosis in patients with CAD.Keywords: Renal Artery Stenosis, Coronary Artery Disease, Atherosclerosis
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