TRANSCATHETER EMBOLIZATION OF LARGE IDIOPATHIC RENAL ARTERIOVENOUS-FISTULA

Renal arteriovenous fistulas are unusual lesions with a variety of cli nical manifestations. Congenital and acquired forms have been treated successfully with transcatheter embolization for 2 decades. In the cas e of large aneurysmal lesions the risk of inadvertent pulmonary emboli sm has traditionally precluded this approach and necessitated open sur gery. However, with refinements in angiographic equipment and techniqu e, such an approach is now feasible and desirable.