A Rare Cause of Gastrointestinal Bleeding: A Paraprosthetic Aortojejunal Fistula

Secondary aorto-enteric fistula (SAEF) is a rare but serious complication after the surgical or endovascular treatment of abdominal aortic aneurysm (AAA). Multiple mechanisms lead to SAEF formation. Infection and close adhesion between the graft and the bowel are considered the main predisposing factors. Graft infection occurs in 0.3–3.1% of AAA repairs, while 20–45% of infected patients will develop SAEF [1, 2].