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  • Title: [A gastro-electromyographical study on selective vagotomy and proximal selective vagotomy in the dog (author's transl)].
    Author: Shimizu Y.
    Journal: Nihon Heikatsukin Gakkai Zasshi; 1975 Jun; 11(2):57-77. PubMed ID: 1238835.
    Abstract:
    The gastro-electromyographical changes after vagotomy were studied by means of chronic in-situ experiments on eighteen dogs. Basic electric rhythms (slow spikes) were classified into normo-peristalsis and anti-peristalsis. The periodical rhythm of normo-peristalsis was partly disturbed after selective vagotomy but was more regular after feeding. Normally, rate changes of normo-peristalsis show typical patterns depending on the types of meals. These distinctive features were observed more clearly in S.V. and S.P.V. dogs. The incidence of normo-peristalsis and anti-peristalsis during fasting was high in normal dogs and low in S.V. dogs by night. A high level of anti-peristalsis occurred at the antrum in S.V. dogs. Thus, the numbers of normo-peristaltic waves reaching the antrum were decreased in S.V. dogs. After feeding, anti-peristalsis decreased in S.V. dogs but increased in normal dogs. Anti-peristalsis tended to occur in succession with a short cycle just like extra-systole. The author noted that sometimes anti-peristalsis was propagated towards both the orad and the pylorus simultaneously. In both S.V. and S.P.V. dogs, the denervated corpus seemed to have similar functions. On the other hand, in both the S.P.V. and normal dogs, the antrum seemed to function similarly.
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