Renal artery stenosis (RAS) is the the most common cause of hypertension Secondary (prevalence of 1 to 5%). Itcan result when the infringement is bilateral or solitary kidney, renal failure, pulmonary edema, or angina unstable. Angioplasty remains controversial due to an illness reported in 14% on average in a meta-analysis dating from 2003. The failure rate of blood pressure is about 30% with revascularization satisfactory. Patients with renal insufficiency with unilateral RAS, is associated with the parenchymal and angioplasty had no beneficial effect on creatinine clearance, especially as there are nephrotoxicity potential of contrast and risk of cholesterol emboli per-procedure. The SAR is a marker of cardiovascular risk rather than risk failure ESRD. However, the SAR can develop into atheromatous thrombosis.