title: Primary arteriovenous fistulas of the abdomen. Their occurrence secondary to aneurysmal disease of the aorta and iliac arteries.
abstract: We present three cases of arteriovenous fistula secondary to aneurysmal disease. The first patient, a 75-year-old man, presented with abdominal pain, a large pulsatile mass, and renal failure. He underwent repair of his aortocaval fistula; his renal failure resolved and the remainder of his course was uneventful. The second patient, a 77-year-old man, presented with a several-day history of nausea, lower abdominal pain, and a pulsatile mass. He underwent repair of his aortocaval fistula but died on the 21st postoperative day of progressive pulmonary failure. The third patient, a 76-year-old man, presented with an episode of syncope and subsequent rapid development of left lower extremity edema. He was subsequently found to have a right iliac artery to left iliac vein fistula, which was repaired. He did well postoperatively with gradual resolution of his lower extremity edema.
mesh_terms: D000368:Aged; D000783:Aneurysm / Q000150:complications*; D001012:Aorta, Abdominal; D001019:Aortic Rupture / Q000150:complications* / Q000000981:diagnostic imaging; D001164:Arteriovenous Fistula / Q000209:etiology*; D006801:Humans; D007083:Iliac Artery; D007084:Iliac Vein; D008297:Male; D011859:Radiography; D012422:Rupture, Spontaneous; D014682:Vena Cava, Inferior