Spatial patterns of fasting and fed antropyloric pressure waves in humans.

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dc.contributor.authorSun, W.M.
dc.contributor.authorHebbard, G.
dc.contributor.authorMalbert, C.H.
dc.contributor.authorJones, K.
dc.contributor.authorDoran, S.
dc.contributor.authorHorowitz, M.
dc.contributor.authorDent, J.
dc.date.issued1997
dc.description.abstract1. Gastric mechanics were investigated by categorizing the temporal and spatial patterning of pressure waves associated with individual gastric contractions. 2. In twelve healthy volunteers, intraluminal pressures were monitored from nine side hole recording points spaced at 1.5 cm intervals along the antrum, pylorus and duodenum. 3. Pressure wave sequences that occurred during phase II fasting contractions (n = 221) and after food (n = 778) were evaluated. 4. The most common pattern of pressure wave onset along the antrum was a variable combination of antegrade, synchronous and retrograde propagation between side hole pairs. This variable pattern accounted for 42% of sequences after food, and 34% during fasting (P < 0.05). Other common pressure wave sequence patterns were: purely antegrade-29% after food and 42% during fasting (P < 0.05); purely synchronous-23% fed and 17% fasting; and purely retrograde-6% fed and 8% fasting. The length of sequences was shorter after food (P < 0.05). Some sequences 'skipped' individual recording points. 5. The spatial patterning of gastric pressure wave sequences is diverse, and may explain the differing mechanical outcomes among individual gastric contractions. 6. Better understanding of gastric mechanics may be gained from temporally precise correlations of luminal flows and pressures and gastric wall motion during individual gastric contraction sequences.
dc.description.statementofresponsibilityW. M. Sun, G. S. Hebbard, C.-H. Malbert, K. L. Jones, S. Doran, M. Horowitz and J. Dent
dc.identifier.citationJournal of Physiology, 1997; 503(Part 2):455-462
dc.identifier.doi10.1111/j.1469-7793.1997.455bh.x
dc.identifier.issn0022-3751
dc.identifier.issn1469-7793
dc.identifier.orcidMalbert, C.H. [0000-0002-0665-4545]
dc.identifier.orcidJones, K. [0000-0002-1155-5816]
dc.identifier.orcidHorowitz, M. [0000-0002-0942-0306]
dc.identifier.urihttp://hdl.handle.net/2440/9019
dc.language.isoen
dc.publisherCAMBRIDGE UNIV PRESS
dc.source.urihttps://doi.org/10.1111/j.1469-7793.1997.455bh.x
dc.subjectDuodenum
dc.subjectStomach
dc.subjectPyloric Antrum
dc.subjectPylorus
dc.subjectHumans
dc.subjectFasting
dc.subjectPostprandial Period
dc.subjectPressure
dc.subjectTime Factors
dc.subjectAdult
dc.subjectMiddle Aged
dc.subjectFemale
dc.subjectMale
dc.titleSpatial patterns of fasting and fed antropyloric pressure waves in humans.
dc.typeJournal article
pubs.publication-statusPublished

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