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The continuous inside splinting of the small intestine was carried out in 82 children and adults, because of postoperative ileus, chronic recurrent ileus and diffuse peritonitis. Possibly the splinting had contributed in one case to the perforation of the paralytic small intestine with a fatal outcome. In another case there occurred a relapse of an ileus. All other patients have no complaints in connexion with the splinting operation. Control examinations take place. A "total folding" of the small intestine was not observed by the radioscopy.

In rats, antrectomy results in a decrease of ulcer rate by immobilization without statistic significance. Stress ulcer rate is also lowered by antral vagotomy, with statistically significant decrease of acid production. By antrectomy as well as by antral vagotomy just the acid production but not the circulatory disturbance in the mucosa of corpus is influenced, which is primarily responsible for the development of stress ulcers. This fact gives an explantation for the relatively high ulcer rate, compared with the conduction in rats after truncal vagotomy. Unclear remains whether antrectomy with consecutive total gastrin elimination is merely working by inhibiting the secretion, or if gastrin has a circulatory effect too.

The effectiveness of truncal vagotomy to prevent stress ulcers was examined in rats. Truncal vagotomy protects safely from stress ulcer caused by immobilization. This protection continues for a longer postoperative period. After vagotomy, even repeated immobilizations cause no ulcer. There are no different results after truncal vagotomy with or without drainage operation.

In rats development of stress ulcers by immobilization is accompanied by elevated pH, reduced amount of gastric juice, and by this with decreased amount of acid. Consequently, the acid factor has no primary importance for the development of stress ulcer. Truncal vagotomy, selective proximal vagotomy, and selective antral vagotomy result in reducing the acid secretion at elevated pH value and increased juice amount, and in a decreased ulcer rate. Greatest certainty to prevent stress ulcer gives the truncal vagotomy, whereas there is a poor effect after antral vagotomy.

The authors examined in rats the importance of pyloric stenosis for the development of spontaneous acute ulcers and stress ulcers in the stomach. Spontaneous superficial lesions arise only during the first 20 days. They apparently signify an intensified narrowing by postoperative swelling with mechanical stimulation of gastrin secretion in the antrum. They were not observed during later periods. Chronic ulcers did not develop. Stress ulcers caused by immobilization were more frequently seen in rats with pyloric narrowing than without. Vagotomy protected the rats with pyloric stenosis from stress ulcer, although not as certain as in control animals.

In the rat stasis of duodenal and pancreatic juice, and of bile by ligatures at the duodenum with potential reflux into the stomach causes an inhibition of gastric secretion. The strongest effect presumably has the bile in connection with the distension of the duodenum. Moistening of the mucosa of gastric corpus with these juices seems to be unimportant.

In experiments on rats the anterior or/and the posterior gastric vagus nerve were electrically stimulated. The extent and site of acid-producing gastric areas were demonstrated by help of Congo red. Unilateral stimulation resulted in enhanced acid secretion in a smaller area of gastric mucosa. The acid-secreting areas showed no different distribution at stimulation of the anterior or posterior vagus nerve.