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Gastric Electrical Stimulation Does Not Significantly Affect Canine Gastric Acid Secretion and 24-Hour Gastric pH

Digestive Diseases and Sciences volume 49, pages 48–53 (2004)Cite this article

Abstract

Gastric electrical stimulation (GES) was shown to improve symptoms in patients with gastroparesis. However, the underlying mechanisms remain unclear. This study assessed the influence of various patterns of GES on fasting and postprandial gastric acid secretion and 24-hr gastric pH. Eight healthy dogs were studied and we found that in the fasting state, low-frequency, long-pulse (6/12-cpm, 375-msec, 4-mA) GES at the proximal stomach significantly inhibited the secretion of gastric juice (P < 0.05). No such effect was observed during GES (6/12 cpm) at the distal stomach. In the postprandial period, low-frequency, long-pulse GES at both proximal and distal sites and at both frequencies did not significantly affect gastric acid secretion. High-frequency, short-pulse GES, investigated for obesity (21 Hz, 8 mA, and 250 μsec, with 2 secs on, 3 sec off), at the proximal and distal stomach did not significantly affect the 24-hr gastric pH profile. In conclusion, GES with various stimulation parameters, and at various sites, has little effect on gastric acid secretion. The clinical effects induced by GES at these parameters may not be related to their effect on gastric acid homeostasis.

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Affiliations

  1. The Departments of Gastroenterology and Surgery, Cleveland Clinic Foundation, Cleveland, Ohio, USA

    Jin-Hong Xing, Michael Rosen, Frederick Brody & Edy E. Soffer

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  1. Jin-Hong Xing
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  2. Michael Rosen
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  3. Frederick Brody
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  4. Edy E. Soffer
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Xing, JH., Rosen, M., Brody, F. et al. Gastric Electrical Stimulation Does Not Significantly Affect Canine Gastric Acid Secretion and 24-Hour Gastric pH. Dig Dis Sci 49, 48–53 (2004). https://doi.org/10.1023/B:DDAS.0000011601.17400.78

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  • DOI: https://doi.org/10.1023/B:DDAS.0000011601.17400.78

  • animal study
  • gastric electrical stimulation
  • gastric secretion
  • gastric acid output
  • gastric pH