[Gastrointestinal hemorrhage after operation for dissecting aneurysm of the thoracic aorta].

We present the case of a 45-year-old man who underwent surgical repair of a dissecting aneurysm of the descending thoracic aorta. 25 days postoperatively, the patient unexpectedly developed hematemesis and hypovolemic shock. Emergency gastroscopy was performed and a suspected aortoesophageal fistula was diagnosed. Unfortunately, the patient died prior to emergency surgery. Aneurysms of the aorta or of aortic grafts occasionally lead to the development of fistulae to the upper gastrointestinal tract. Once this rare, but life-threatening complication is suspected, endoscopy must be performed immediately. Emergency surgery is associated with a high risk, but represents the only possibly chance of survival for the patient.