Document Detail

Is there a one-to-one correlation between gastric emptying of liquids and gastric myoelectrical or motor activity in dogs?
MedLine Citation:
PMID:  11858233     Owner:  NLM     Status:  MEDLINE    
The aim of this study was to investigate the correlation of gastric emptying with gastric myoelectrical activity recorded from internal serosal electrodes and with gastric motility measured from strain gauges. The study was performed in eight healthy dogs chronically implanted with four pairs of electrodes and two strain gauges on the gastric serosa and equipped with a duodenal fistula for the assessment of gastric emptying. Each dog was fed four liquid test meals on four separate days with identical calories (320 kcal) and volume (473 ml). A correlation was found between gastric emptying and the energy of contraction in the frequency band of 3.75-7.50 cycles/min during the first 30 min after the meal (r = 0.46, P < 0.05). While none of the parameters of gastric myoelectrical activity was correlated with gastric emptying, two major parameters, percentage of regular gastric slow waves and percentage of slow-wave coupling, were found to be associated with delayed gastric emptying. A significant correlation was found between the frequency of gastric slow waves and that of the contractions in both fasting (r = 0.83, P < 0.001) and fed state (r = 0.70, P < 0.001 at 30 min, r = 0.86, P < 0.001 at 60 min). It was concluded that gastric emptying is correlated with the strength of gastric contractions in a frequency range identical to that of the gastric slow waves, and there is no one-to-one correlation between gastric emptying of liquids and any parameters of gastric myoelectrical activity. However, major parameters of gastric myoelectrical activity are associated with gastric emptying.
Xiaohong Xu; Zhishun Wang; James Hayes; J D Z Chen
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Digestive diseases and sciences     Volume:  47     ISSN:  0163-2116     ISO Abbreviation:  Dig. Dis. Sci.     Publication Date:  2002 Feb 
Date Detail:
Created Date:  2002-02-21     Completed Date:  2002-03-06     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  7902782     Medline TA:  Dig Dis Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  365-72     Citation Subset:  AIM; IM    
Division of Gastroenterology, University of Texas Medical Branch at Galveston, USA.
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MeSH Terms
Energy Intake
Gastric Emptying / physiology*
Gastrointestinal Motility / physiology
Muscle Contraction / physiology
Myoelectric Complex, Migrating / physiology*
Stomach / physiology*
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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