| 3 | Unusual clinical presentation of primary aortoduodenal fistula显示文摘Primary aorto-enteric fistula(PAEF)develops between the native aorta and the gastro-intestinal tract,in the presence of an abdominal aortic aneurysm.It is a rare,life-threatening condition and appears to be less frequent than secondary aortoenteric fistula,which is associated with previous aortic prosthetic reconstruction.When untreated,the overall mortality rate is almost 100%.Diagnosis may be challenging until the occurrence of a massive haemorrhage.In the presence of gross contamination,patients tend to a worse prognosis.Extra-anatomical bypass and repair of the enteric tract is the treatment of choice in case of gross contamination.In situ reconstruction is often reported in cases of mild bacterial contamination.Endovascular treatment has recently become a valid option in haemodynamically unstable patients,but a staged approach,with delayed surgical treatment,seems advisable. | Daniele Bissacco Luca Freni Luca Attisani Iacopo Barbetta Raffaello Dallatana Piergiorgio Settembrini | 2015 | Gastroenterology Report2015，3，2： | 1 |
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