Revascularization of Renal Artery Stenosis Versus Medical Therapy for the Treatment of Ischemic Nephropathy

The aim of the study is to value, in patients with chronic kidney disease and hypertension, whether medical therapy plus interventional renal artery revascularization is superior to medical therapy alone for the treatment of hemodynamically significant (\>70%) atherosclerotic renal artery stenosis, diagnosed by duplex doppler ultrasonography and confirmed by magnetic resonance angiography, in terms of avoidance of the progression of renal damage, control of hypertension and in reducing the cerebro and cardiovascular complications.