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  • Title: [An experimental study on the effect of vagotomy on stress ulcer and the influence of bile reflux].
    Author: Sakai K.
    Journal: Nihon Heikatsukin Gakkai Zasshi; 1987 Dec; 23(6):457-69. PubMed ID: 3449700.
    Abstract:
    I investigated the significance of bile reflux, when vagotomy was done to stress ulcer, by means of measuring gastric ulcer index, gastric pH and serum gastrin levels of rats. And in order to examine influence of alkali factor of bile, I measured gastric acid output and serum gastrin levels after alkali or acid solution was infused into the untreated rat's stomach. Results were summarized as follows: 1. When I infused alkali solution into the untreated stomach, there was no significant change in serum gastrin level but gastric acid output was significantly accelerated, as compared with infusing acid solution. On the other hand, when I infused alkali solution into the vagotomized stomach, serum gastrin level increased significantly and gastric acid output was significantly accelerated, as compared with infusing acid solution, so, acceleration of acid output observed when I infused alkali solution into the untreated stomach was not suppressed in spite of vagotomy operation. 2. In the vagotomized group, gastric acid output was significantly suppressed and serum gastrin level increased significantly as compared with the untreated group. But, when bile was led into the stomach in the vagotomized group, acid output was accelerated and serum gastrin level also showed a tendency to increase as compared with the group of vagotomy alone. 3. When mild stress was inflicted, stress ulcer formation was significantly prevented in the bile reflux group (vagotomy + pyloroplasty) as well as in the non-bile reflux group (vagotomy + pyloric ligation + gastroileostomy) if vagotomy was done. But, when severe stress was inflicted, stress ulcer formation was significantly prevented in the non-bile reflux group, but not prevented in the bile reflux group. As mentioned above, it was proved that stress ulcer formation was not prevented under a severe stress, if bile reflux existed, even though vagotomy was done. So, if we do vagotomy operation, we need to choose the operation method not to induce bile reflux as much as possible.
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