The duodenojejunal junction and treitz ligament in the regulation of duodenal emptying

Virchenko SB, Sayenko VF, Kucherenko TL, Tsedik NN, Elbr0nd H, Djurhuus JC, Funch-Jensen P. The duodenojejunal junction and Treitz ligament in the regulation of duodenal emptying. Scand J Gastroenterol 1993;28:753-759.In chronic experiments in dogs the evacuatory and absorptive duodenal functions and the level of duodenogastric reflux (DGR) in sham-operated dogs and dogs with transected Treitz ligament (TL) and resected duodenojejunal junction (DJJ) were studied. The electrophysiologic characteristics of the antrum, duodenum, and DJJ in sham-operated dogs were examined. It was shown that there is a coordination of gastric and duodenal solid carbohydrate food emptying. The process of evacuation from both organs was characterized by three closely correlated phases, phase 2 of emptying being exponential. In the TL transection and DJJ resection groups the coordination of gastric and duodenal emptying disappeared. The rate of carbohydrate solid food evacuation from the duodenum decreased, on average, by 45.5% ...