Gastric hypersecretion after formation of small bowel conduits: a common factor in several clinical states.

As a preliminary step in studying the effect on gastric acid secretion in dogs following biliary diversion through isolated intestinal conduits, blind-ended intestinal conduits were constructed and the biliary channel was left undisturbed at this time. The results were surprising in that a significant absolute increase in gastric acid secretion occurred in all dogs, within the range of 65-286%, by merely disconnecting a segment of small bowel from the mainstream of flow of intestinal contents. This effect may be due to the "intestinal phase of gastric secretion hormone" and may in itself provide a partial explanation for the well-documented increase in gastric acid production caused by the Exalto-Mann-Williamson procedure and by choledochoenterostomy utilizing a Roux loop.