Prevalence of renal artery stenosis and it's predictors in patients undergoing coronary angiography

ABSTRACT

Renal artery stenosis]RAS[is a frequent finding in patients with CAD. Although the prevalence of RAS in Europe and America has been reported as high as 13.5-18% in patients with suspected coronary artery disease, there is limited information about the prevalence of this disease in IRAN. To evaluate the prevalence of RAS in Iranian patients suspected of cardiovascular disease and the relationships among the vascular risk factors, renal angiography was performed in 301 patients receiving diagnostic coronary angiography, in Lalch Pars and Sasan hospitals during 10 months from Deceniber, 2006 to October 2007. RAS with stenosis diameter equal or more than 70% was considered significant. The prevalence of significant RAS was 6%]l8/301[including 15%]5[cases of unilateral stenosis and 3%]1[of bilateral stenosis]. Among to the number of diseased coronary arteries, the prevalence of RAS was, 7%, 6%, 10% and 3% of 0, 1, 2 and 3-vessel disease respectively. Thus our study showed the RAS is not significantly common in patients with established CAD, except for in those with 2-vessel disease. The prevalence in patient with hypertension was 7% and 3% in normotensive patients. So our study showed that hypertension does not have a close relationship with RAS