Document Detail

Evaluation of human postprandial antral motor function using ultrasound.
MedLine Citation:
PMID:  8166289     Owner:  NLM     Status:  MEDLINE    
We used high-resolution ultrasound to characterize postprandial antral excursion characteristics in 15 healthy volunteers. Antral circumference was repeatedly measured in the sagittal plane anterior to the abdominal aorta, at 15-min intervals following ingestion of a standard meal. At each recording period, the maximal and minimal antral circumference was noted. In seven volunteers, antral circumference was studied continuously for 5 min at each 15-min recording period to assess the frequency and regularity of antral excursions. Antral circumference increased immediately after meal ingestion from preprandial values of 64 +/- 2.6 (means +/- SE) to 138 +/- 3.1 mm and then gradually decreased with meal emptying to 72 +/- 2.6 mm at 90 min. The continuous recordings of antral images revealed that antral circumference transiently decreased at regular intervals; the interval between successive excursions was 20.1 +/- 0.2 s. There was no change in the excursion interval with emptying. The excursion amplitude decreased from 33 +/- 3.9 mm immediately post-meal ingestion to 13 +/- 1.5 mm at 90 min (r2 = 0.62 +/- 0.07). The ratio between the excursion amplitude and circumference of the relaxed antrum changed only slightly with time (slope = 0.0009 +/- 0.00003). Comparison of repeat studies in 10 volunteers showed a low intra-individual variation for postprandial antral circumference and excursion amplitude.
N K Ahluwalia; D G Thompson; H Mamtora; L Troncon; J Hindle; S Hollis
Related Documents :
20472629 - Comparison of tracheal and esophageal compliance curves in human cadaveric subjects.
12612509 - Effect of nalbuphine on the motility of the sphincter of oddi in patients with suspecte...
3220309 - Ultrastructural changes in internal anal sphincter in neurogenic faecal incontinence.
7209389 - Gastric motility 1 year after proximal gastric vagotomy.
679079 - Oropharyngeal dysphagia in patients with oculopharyngeal muscular dystrophy.
7864129 - The phrenic ampulla: distal esophagus or potential hiatal hernia?
11505029 - Electroencephalogram spectral characteristics after alcohol ingestion in japanese men w...
16472719 - Early and late effects of alcohol ingestion on blood pressure and endothelial function.
8636259 - Nocturnal blood pressure elevation is related to adrenomedullary hyperactivity, but not...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The American journal of physiology     Volume:  266     ISSN:  0002-9513     ISO Abbreviation:  Am. J. Physiol.     Publication Date:  1994 Mar 
Date Detail:
Created Date:  1994-05-20     Completed Date:  1994-05-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370511     Medline TA:  Am J Physiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  G517-22     Citation Subset:  IM    
Department of Medicine, University of Manchester Medical School, Hope Hospital, United Kingdom.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Muscle Contraction*
Observer Variation
Pyloric Antrum / physiology*,  ultrasonography*

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

Previous Document:  Saturable binding of circulating peptide YY in the dorsal vagal complex of rats.
Next Document:  Matrix metalloproteinase and elastase activities in LPS-induced acute lung injury in guinea pigs.