[Chronic duodenostasis resulting from a mechanical obstacle in the area of Treitz's ligament].

An analysis of results of diagnosis, operative treatment and motility of the duodenum and jejunum was made in patients with chronic mechanical obstruction of the duodenum at the level of the Treitz ligament. In the period before operation of importance is the investigation of gastric secretion. Duodenojejunostomy is considered to be the most adequate intervention. In patients with higher indices of gastric secretion the main intervention is supplemented by some kind of vagotomy for prevention of peptic ulcer of the interintestinal anastomosis and of erosive gastritis. The motor and evacuatory function of the duodenum and jejunum after vagotomy is increased. The immediate and long-term results are good.