[Cost-benefit of upper digestive endoscopy. Frequency of early gastric cancer and negative endoscopy in relation to indications].

The increasing demand for upper gastrointestinal endoscopies (184% from 1974 to 1985) led to a review of cases in an attempt to improve the cost-benefit ratio of this diagnostic procedure (E.G.C.

[Early gastric cancer: a retrospective study of our cases (1974-1979)].

A retrospective analysis of 3052 gastroscopies made by our Digestive Endoscopy Department from 1974 to 1979 was carried out. 14 Early Gastric Cancers out of a total of 157 gastric carcinomas were diagnosed (8.9%), with an EGC: Gastroscopies ratio = 1:218.