title: Aortoenteric fistula: a late complication of endovascular repair of an inflammatory abdominal aortic aneurysm.
abstract: Endovascular repair provides a reasonable alternative to open repair for the treatment of abdominal aortic aneurysms in select cases. Although the endovascular approach may be preferable for inflammatory aneurysms, aggressive surveillance is needed to monitor for long-term complications. A 61-year-old man underwent endovascular exclusion of a symptomatic inflammatory abdominal aortic aneurysm with an AneuRx bifurcated aortic prosthesis. He presented with gastrointestinal bleeding 51/2 months later and was found to have an aortoenteric fistula involving the third portion of the duodenum. The aneurysm had expanded significantly at the proximal neck. The patient underwent successful removal of the device, aortic ligation, and extraanatomic bypass. Aortoenteric fistula is a rare but now established complication of endovascular aneurysm repair. The pathophysiology in these cases remains unclear. The presence of inflammation and endoleak may predispose to further aneurysmal degeneration.
authors.affiliation: Vascular Medicine, Division of Cardiology, Department of Medicine, Columbia University Medical Center, New York, NY 10032, USA. eh483@columbia.edu
authors.forename: Elizabeth V
authors.initials: EV
authors.lastname: Ratchford
authors.forename: Nicholas J
authors.initials: NJ
authors.lastname: Morrissey
mesh_terms: D017130:Angioplasty / Q000009:adverse effects*; D017544:Aortic Aneurysm, Abdominal / Q000000981:diagnostic imaging / Q000601:surgery*; D001018:Aortic Diseases / Q000000981:diagnostic imaging / Q000209:etiology*; D019917:Blood Vessel Prosthesis Implantation / Q000009:adverse effects*; D004378:Duodenal Diseases / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D007412:Intestinal Fistula / Q000000981:diagnostic imaging / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D016157:Vascular Fistula / Q000000981:diagnostic imaging / Q000209:etiology*