title: Surgical treatment for an idiopathic renal arteriovenous fistula with a large aneurysm.
abstract: Interventional embolization is currently the first line treatment for arteriovenous fistulas; however, the efficacy of repeated embolization remains controversial. A case is reported of an idiopathic renal arteriovenous fistula with large aneurysmal dilatation treated by surgery following the failure of interventional embolization. A 42-year-old woman was admitted to Ichikawa General Hospital, Japan, with gross hematuria containing many clots. Right renal arteriogram showed an aberrant vessel arising from the main trunk of the renal artery, which was followed by the formation of an aneurysm and rapidly ended in arteriovenous shunting. The aneurysm was approximately 35 mm in size. As interventional embolization had failed, surgical treatment including extracorporeal renal surgery was performed. Postoperative renal angiography revealed excellent renal function and beautiful vascular architecture. Although the indication for surgical treatment of renal vascular disease has decreased owing to the advancement of interventional techniques, there are still some risky cases for which surgical repair should be recommended.
authors.affiliation: Department of Urology, Ichikawa General Hospital, Tokyo Dental College, Chiba, Japan. hayakawa@tdc.ac.jp
authors.forename: K
authors.initials: K
authors.lastname: Hayakawa
authors.forename: T
authors.initials: T
authors.lastname: Aoyagi
authors.forename: M
authors.initials: M
authors.lastname: Ohashi
authors.forename: H
authors.initials: H
authors.lastname: Ishikawa
authors.forename: M
authors.initials: M
authors.lastname: Hata
mesh_terms: D000328:Adult; D000783:Aneurysm / Q000150:complications / Q000601:surgery*; D001164:Arteriovenous Fistula / Q000150:complications / Q000601:surgery*; D005260:Female; D006801:Humans; D012077:Renal Artery; D012082:Renal Veins