Aortoenteric fistula to the sigmoid colon—case report

Secondary Aortoenteric Fistula After Abdominal Aortic Graft Implementation in Our Own Material

“…There have been, however, numerous cases reported worldwide in which a colonoscopy facilitated a definite diagnosis. Such cases were published by, e.g., Malaki et al and Perez et al [24,25]. Bergqwist et al reported 25 published cases of SAEFs with colon involvement, which accounted for 8% of all reviewed cases.…”

Secondary Iliac-Enteric Fistula to the Sigmoid Colon Complicated with Entero-Grafto-Cutaneous Fistula

“…Also 18-fluorodeoxyglucose positron emission tomography can diagnose the fistula in selected cases [8]. Aortography is rarely helpful in diagnosing AEF, since even the fistula can be occluded by a thrombus or can be too long and/or not large enough [7]. In such a case technetium-99m-labelled red blood cell scintigraphy can help [18].…”

“…On the gastrointestinal side of the fistula, duodenum is mostly involved (87%), followed by small bowel, especially the ileum (4%), and very rarely stomach and esophagus [3, 6]. The incidence of AEF to the large bowel is under 2% [7]. Regarding the vascular side of the fistula, in nearly all cases the aorta or the proximal suture line (on aorta) is involved.…”

“…Regarding the vascular side of the fistula, in nearly all cases the aorta or the proximal suture line (on aorta) is involved. There are only few case reports on communication between iliac graft leg and the large bowel [7, 8]. This rare type of fistula is generally called AEF.…”

Late Gastrointestinal Bleeding After Infrarenal Aortic Grafting: A 16-Year Experience

“…2,7 Bleeding may be acute and massive, indicating a true AEF, or it may be silent and intermittent, 8,9 but severe, with progressive anemia, more suggestive of a paraprosthetic AEF, and making the diagnosis diffi cult in the non-bleeding interval. Occasionally, a colonic fi stula manifests as proctorrhagia, 10 and the GI hemorrhage may be accompanied by fever and other symptoms indicative of infection.…”