Document Detail


Relationship between ultrasonically detected phasic antral contractions and antral pressure.
MedLine Citation:
PMID:  11408259     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The relationships between gastric wall motion and intraluminal pressure are believed to be major determinants of flows within and from the stomach. Gastric antral wall motion and intraluminal pressures were monitored in five healthy subjects by concurrent antropyloroduodenal manometry and transabdominal ultrasound for 60 min after subjects drank 500 ml of clear soup. We found that 99% of antral contractions detected by ultrasound were propagated aborally, and 68% of contractions became lumen occlusive at the site of the ultrasound marker. Of the 203 contractions detected by ultrasound, 53% were associated with pressure events in the manometric reference channel; 86% of contractions had corresponding pressure events detectable somewhere in the antrum. Contractions that occluded the lumen were more likely to be associated with a pressure event in the manometric reference channel (P < 0.01) and to be of greater amplitude (P < 0.01) than non-lumen-occlusive contractions. We conclude that heterogeneous pressure event patterns in the antrum occur despite a stereotyped pattern of contraction propagation seen on ultrasound. Lumen occlusion is more likely to be associated with higher peak antral pressure events.
Authors:
K Hveem; W M Sun; G Hebbard; M Horowitz; S Doran; J Dent
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of physiology. Gastrointestinal and liver physiology     Volume:  281     ISSN:  0193-1857     ISO Abbreviation:  Am. J. Physiol. Gastrointest. Liver Physiol.     Publication Date:  2001 Jul 
Date Detail:
Created Date:  2001-06-15     Completed Date:  2001-07-19     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  100901227     Medline TA:  Am J Physiol Gastrointest Liver Physiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  G95-101     Citation Subset:  IM    
Affiliation:
Innherred Hospital, Levanger 7600, Norway. hveem@innherred-sykehus.no
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Female
Gastric Emptying / physiology*
Humans
Male
Manometry
Observer Variation
Pressure
Pyloric Antrum / physiology*,  ultrasonography*
Reference Values

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


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