[Recurrent hematemesis caused by paraprosthetic aorto-digestive fistula].

The authors report the observation of a paraprosthetic fistula revealed by three episodes of digestive haemorrhage, illustrating the diagnostic and therapeutic difficulties brought about by the erosion of the duodenum by a sub-renal aortic prosthesis. A review of the literature confirms the rarity and the gravity of this pathology, and underlines the per-operative preventive measures.