Role of sham feeding in postprandial changes of gastric myoelectrical activity

J. D.Z. Chen, J. Pan, W. C. Orr

Research output: Contribution to journalArticlepeer-review

Abstract

The aim of this study was to evaluate the role of sham feeding in postprandial changes of gastric myoelectrical activity. Eighteen asymptomatic healthy volunteers (10 men, 8 women; mean age: 31), with no history of gastrointestinal disease were studied. Gastric myoelectrical activity was recorded for 30 min at baseline, 30 min after sham feeding, and 1 hr after eating, using surface electrogastrography. The electrogastrogram (EGG) was analyzed by spectral analysis. It was found that the changes of postprandial EGG parameters were significantly correlated with those after sham feeding (EGG dominant power: r = 0.6, P < 0.01; dominant frequency: r = 0.8, P < 0.001; percentage of regular slow waves: r = 0.7, P < 0.003). We concluded that intrinsic gastric electrical activity can be altered by sham feeding and the cephalic phase of digestion plays an important role in the postprandial response of-gastric myoelectrical activity.

Original languageEnglish (US)
Pages (from-to)1706-1712
Number of pages7
JournalDigestive diseases and sciences
Volume41
Issue number9
DOIs
StatePublished - Jan 1 1996
Externally publishedYes

Keywords

  • Cephalic stimulation
  • Electrogastrography
  • Gastric motility
  • Sham feeding

ASJC Scopus subject areas

  • Physiology
  • Gastroenterology

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