Frequency and predictors of renal artery stenosis in patients with coronary artery disease.

Renal artery stenosis (ras) is a common finding in patients undergoing coronary angiography. we designed this study to look for the frequency and any predictors of renal artery stenosis in patients with coronary artery disease (cad). a total of 201 consecutive patients with cad confirmed by coronary angiography underwent an abdominal aortogram in the same sitting to screen for ras. patient demographics and co-morbidities were analysed for any association with ras. 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%) had single coronary artery disease,59 patients (29.4%) had two vessel disease,and 110 patients (54.7%) had three vessel disease. significant renal artery stenosis (> or = 50% stenosis) was present in 26 patients (12.9%). among the variables studied,only female gender was found to be associated with a higher frequency of renal artery stenosis (24.39% vs 10.0%,p = 0.01). the frequency of renal artery stenosis in patients with coronary artery disease is 12.9%. female gender is associated with a higher frequency of renal artery stenosis in patients with cad.