Aorto-esophageal fistula - An autopsy series.

Abstract

Fistulous tracts within the thorax are best exemplified aorto-esophageal fistulas (AEFs), which are rare exsanguinations of the upper gastrointestinal tract. Most of them are diagnosed at autopsy. This is an autopsy-based study of fatal cases of AEFs gathered over a period of 20 years. Cases of AEFs were retrieved from the autopsy records of the cardiovascular pathology sub-specialty at a tertiary care center and were studied with reference to demographic details, modes of clinical presentation, and pathological features. Ten cases of AEFs (10 males and 8 females, mean age of 46.9 years) were identified in a span of 20 years. A clinical diagnosis of AEF was made in only one patient, while the rest were identified at autopsy. All the patients had a bout of massive and fatal hematemesis. The fistulous connections, involving the middle-third of the esophagus, were caused by a fishbone, esophageal ulceration and aneurismal aortic diseases of varied etiology. AEFs are often missed or misdiagnosed. Early recognition of this rapidly fatal condition is essential as these fistulas require quick and aggressive management.