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  • Title: Prevalence of renal artery stenosis requiring revascularization in patients initially referred for coronary angiography.
    Author: Khosla S, Kunjummen B, Manda R, Khaleel R, Kular R, Gladson M, Razminia M, Guerrero M, Trivedi A, Vidyarthi V, Elbzour M, Ahmed A.
    Journal: Catheter Cardiovasc Interv; 2003 Mar; 58(3):400-3. PubMed ID: 12594711.
    Abstract:
    To evaluate the prevalence of clinically significant renal artery stenosis (RAS) in patients referred for coronary angiography, we analyzed data on 2,439 consecutive patients. Patients underwent selective renal angiography in conjunction with coronary angiography if refractory hypertension (blood pressure > 140/90 on two drugs) or flash pulmonary edema was present. A total of 1,089 renal arteries of 534 patients were evaluated. Twelve percent (137/1,089) of the renal arteries in 19% (101/534) of patients had > 70% diameter stenosis in at least one vessel. Bilateral renal artery stenosis was present in 26% (26/101) of patients. One hundred and thirty-two of the 137 vessels underwent stent revascularization due to clinical renovascular hypertension. Acute clinical success (< 20% diameter stenosis without death or urgent surgery) was 98% (99/101). Due to high prevalence and effective available treatment, we recommend routine screening for RAS in all patients with refractory hypertension referred for coronary angiography.
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