title: Aortocaval fistula after stent-graft repair.
abstract: OBJECTIVE
  To report an aortocaval fistula after stent-graft repair and the feasibility of interventional treatment.
  
  
  METHODS
  A 78-year-old man with a 61-mm infrarenal aortic aneurysm (AA) was treated successfully with a Zenith bifurcated stent-graft. Three years later, the patient presented with deteriorating renal function and acute bronchial obstruction. Computed tomography showed an aortic diameter increased to 90 mm, dilatation of the inferior vena cava, and a distal type I endoleak. The patient's condition quickly deteriorated, and emergent imaging found a fistula with brisk flow between the aneurysm sac and the left iliac vein within a distal type I endoleak. During emergency endovascular repair, iliac extensions were implanted in the right common iliac artery and left external iliac artery. The left hypogastric artery was coil embolized to exclude flow into the aneurysm sac. After positioning the extensions, cardiac function improved, and the fistula was no longer palpable. The cardiac indices and renal function normalized, and he was discharged 20 days after admission.
  
  
  CONCLUSIONS
  Aortocaval fistulas are a rare complication of AA stent-graft repair and may be successfully treated by interventional means.
authors.affiliation: Department of Vascular and Endovascular Surgery, Klinikum Nürnberg, Germany. hetzel@klinikum-nuernberg.de
authors.forename: Gudrun
authors.initials: G
authors.lastname: Hetzel
authors.forename: Petra
authors.initials: P
authors.lastname: Gabriel
authors.forename: Oliver
authors.initials: O
authors.lastname: Rompel
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Ritter
authors.forename: Dieter
authors.initials: D
authors.lastname: Raithel
mesh_terms: D000368:Aged; D000792:Angiography; D001014:Aortic Aneurysm / Q000473:pathology / Q000601:surgery; D001019:Aortic Rupture / Q000209:etiology* / Q000601:surgery; D001164:Arteriovenous Fistula / Q000209:etiology* / Q000601:surgery; D019917:Blood Vessel Prosthesis Implantation; D006801:Humans; D007084:Iliac Vein / Q000473:pathology; D008297:Male; D011183:Postoperative Complications / Q000175:diagnosis*; D015607:Stents; D014057:Tomography, X-Ray Computed; D018616:Ultrasonography, Doppler, Duplex; D014682:Vena Cava, Inferior / Q000473:pathology