Development of gastric slow waves and effects of feeding in pre-term and full-term infants

J. Zhang, H. Ouyang, H. B. Zhu, H. Zhu, X. Lin, E. Co, J. Hayes, J. D.Z. Chen

Research output: Contribution to journalArticlepeer-review


The aims of this study were to investigate the difference in developmental process of gastric slow waves and the effects of feeding in pre-term and full-term infants. Twenty-six pre-term and 31 full-term infants were enrolled in the study. Gastric myoelectrical activity was recorded using electrogastrography (EGG) from birth to month 6. (1) An increase in the % of 2-4 cpm slow waves was noted in both pre-term (P < 0.01) and full-term infants (P < 0.04) from birth to month 4. (2) The pre-term infants showed a reduced dominant EGG power at certain points of the study. (3) Breast or formula feeding resulted in no difference in the EGG in the full-term infants and showed a difference in the postprandial dominant power of the EGG in the pre-term infants only at month 2 after birth (P < 0.05) but not at other times. The gastric slow wave in pre-term infants is of a significantly reduced amplitude but similar rhythmicity. The method of feeding has no effects on the EGG in full-term infants and minimal effects (may be of non-clinical significance) on the EGG in pre-term infants as the difference was noted only at one time point during the 6-month follow-up study.

Original languageEnglish (US)
Pages (from-to)284-291
Number of pages8
JournalNeurogastroenterology and Motility
Issue number4
StatePublished - Apr 1 2006
Externally publishedYes


  • Electrogastrogram
  • Electrogastrography
  • Gastric emptying
  • Gastric motility
  • Gastric slow waves

ASJC Scopus subject areas

  • Physiology
  • Endocrine and Autonomic Systems
  • Gastroenterology


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