All patients referred for coronary angiography will simultaneously be evaluated for renal artery stenosis and then stenosis more than 50% will be analyzed according to clinical conditions, risk factors and lab data.
Renal Artery Stenosis (RAS) is a common finding in patients with generalized atherosclerosis. It is the cause of 15-20% of end stage renal disease in elderly patients. The prevalence of asymptomatic RAS in general population is unknown but it estimated to be 18% in 7th decade and more than 50% in the 8th. It is critical to find and manage the RAS before it's symptoms appear. The Gold standard for diagnosis of atherosclerotic arterial stenosis is angiography. In this study we will evaluate the prevalence, severity, location and related factors to renal artery stenosis in patients whom referred for coronary angiography in period of July-September in one of the most referral heart center in Iran, "The Tehran heart center" which is doing more than 50 coronary angiography daily.
Study Type
OBSERVATIONAL
Enrollment
146
all patients undergoing coronary angiography with VISIPAQUE and if they had coronary stenosis then renal artery angiography will be done. the dose of contrast will be chosen according to renal function and clinical conditions which will be varied from 75 to 300 ml.
Tehran Heart Center
Tehran, Iran
Prevalence of Renal Artery Stenosis (RAS)
Time frame: 2 months
The Number of Patients With Renal Artery Stenosis
the prevalence of renal artery stenosis in patients with coronary artery disease
Time frame: 3months
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