Renovascular interventions

Abstract

In renal artery stenosis or obstruction, radiologic interventions are important treatment options to cure or improve renovascular hypertension or renal insufficiency and to prevent progression of renal artery stenosis to complete occlusion. Causes of renal artery stenosis and characteristics of lesions affect the results of renal PTA. Fibromuscular dysplasia, especially medial fibroplasia type, shows the best results for percutaneous transluminal angioplasty. In an atherosclerotic renal ostial lesion, balloon angioplasty alone is inefficient and primary stenting can be indicated. Iatrogenic or traumatic renal injuries, renal artery aneurysms, arteriovenous fistulas, vascular malformations, and renal neoplasms can be effectively managed by renal artery embolization using adequate embolic materials.