Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/9087
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dc.contributor.authorHebbard, G.en
dc.contributor.authorReid, K.en
dc.contributor.authorSun, W.en
dc.contributor.authorHorowitz, M.en
dc.contributor.authorDent, J.en
dc.date.issued1995en
dc.identifier.citationNeurogastroenterology and Motility, 1995; 7(3):169-174en
dc.identifier.issn1350-1925en
dc.identifier.issn1365-2982en
dc.identifier.urihttp://hdl.handle.net/2440/9087-
dc.description.abstractA barostat was used to examine the effect of changes in posture on the volume and pressure in a bag positioned in the proximal stomach of 14 normal volunteers. Volumes in the supine position were compared with those in the standing, left lateral and right lateral positions at a constant pressure 2 mmHg above basal intragastric pressure. A separate series of measurements was then used to evaluate the effects of the same postural changes on pressure within the bag whilst its volume was kept constant. Changing from the supine to the left lateral position decreased bag volume by 62% when pressure was controlled; pressure increased by 60% when volume was controlled. In contrast, movement from the supine to the right lateral position resulted in a 68% increase in bag volume and a 31% fall in pressure. Moving from supine to standing had inconsistent effects on bag volume and pressure. There was a negative correlation between the magnitudes of the changes in pressure and volume (r2 = 0.557). The observed effects of posture probably result from changes in the compression of the stomach by abdominal viscera and indicate that subject position must be specified and maintained constant in studies of proximal gastric motor function using a barostat.en
dc.description.statementofresponsibilityHebbard, G. S.; Reid, K.; Sun, W. M.; Horowitz, M.; Dent, J.en
dc.language.isoenen
dc.publisherBlackwellen
dc.subjectbarostat; gastric fundus; intragastric pressureen
dc.titlePostural changes in proximal gastric volume and pressure measured using a gastric Barostaten
dc.typeJournal articleen
dc.identifier.rmid0030004798en
dc.identifier.doi10.1111/j.1365-2982.1995.tb00222.xen
dc.identifier.pubid68804-
pubs.library.collectionMedicine publicationsen
pubs.verification-statusVerifieden
pubs.publication-statusPublisheden
dc.identifier.orcidHorowitz, M. [0000-0002-0942-0306]en
Appears in Collections:Medicine publications

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