[Endoscopic diagnosis of chronic obstruction of the duodenum in association with peptic ulcer]

The results of gut endoscopic examination in 460 patients with duodenal ulcer disease concurrent with its chronic obstruction (CI) are adduced. Direct and indirect endoscopic signs of duodenal CI are revealed in 399 (86.73%) of patients. Endoscopic criteria of the CI stage determination are described: duodenal stenosis, pyloric sphincter deformity and insufficiency, reflux-gastritis and the gastrostasis signs while satisfactory pyloric passability.