Revascularization of the Chronic Totally Occluded Renal Artery with Restoration of Renal Function

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Abstract
Nine patients with non-functioning kidneys and complete renal artery occlusion discovered on arteriographic investigation for hypertension underwent renal artery revascularization with successful restoration of renal blood flow. Of these patients 7 experienced recovery of renal function and 2 showed no evidence of improvement. One patient had a creatinine clearance of 38 ml/min from the revascularized kidney 2 yr postoperatively. Predictive determinants of salvageable renal parenchyma were the histologic evidence of intact viable glomeruli and the angiographic features of a rich perihilar collateral circulation in the presence of a proximal occlusion with a patent distal renal artery.