Document Detail

Dyspeptic symptoms associated with hypersensitivity to gastric distension induced by duodenal acidification.
MedLine Citation:
PMID:  16638092     Owner:  NLM     Status:  MEDLINE    
BACKGROUND AND AIM: Duodenal acidification might increase sensitivity to gastric distension, which seems to play a role in the genesis of dyspeptic symptoms in a subset of patients with functional dyspepsia. The aim of the present study was to investigate the characteristics of dyspeptic symptoms associated with hypersensitivity to gastric distension induced by duodenal acidification. METHODS: An infusion tube and a barostat bag were positioned in the duodenum and gastric fundus, respectively. Sensitivity to stepwise fundic distensions with severity scoring of the seven dyspeptic symptoms was assessed before and during duodenal acid infusion in 20 healthy subjects. RESULTS: Acid infusion significantly decreased the pressures and the corresponding wall tensions at the thresholds for discomfort. At the distending level of minimal distending pressure (MDP) + 2 mmHg, significantly higher scores of fullness and bloating were obtained during acid infusion. With distending stimuli of MDP + 4 and 6 mmHg, fullness, bloating, nausea, satiety, epigastric burning and epigastric pain were significantly more severe during acid infusion than before acid infusion. At the level of MDP + 8 mmHg, the severity of epigastric pain was significantly greater, compared with that before acid infusion. CONCLUSIONS: Duodenal acidification might aggravate dyspeptic symptoms through the induction of hypersensitivity to gastric distension in healthy individuals. Those symptoms are diverse and variable, depending on the strength of the distending stimuli.
Kwang Jae Lee; Jin Hong Kim; Sung Won Cho
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of gastroenterology and hepatology     Volume:  21     ISSN:  0815-9319     ISO Abbreviation:  J. Gastroenterol. Hepatol.     Publication Date:  2006 Mar 
Date Detail:
Created Date:  2006-04-26     Completed Date:  2006-10-13     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8607909     Medline TA:  J Gastroenterol Hepatol     Country:  Australia    
Other Details:
Languages:  eng     Pagination:  515-20     Citation Subset:  IM    
Department of Gastroenterology, Ajou University Hospital, Ajou University School of Medicine, Suwon, South Korea.
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MeSH Terms
Area Under Curve
Duodenum / drug effects,  metabolism*
Dyspepsia / physiopathology*
Gastric Acidity Determination
Gastric Emptying / physiology
Gastric Fundus / physiology
Gastrointestinal Motility / physiology
Hydrochloric Acid / administration & dosage*,  metabolism
Mechanoreceptors / physiology
Muscle Tonus
Sensation / physiology*
Severity of Illness Index
Stomach / physiology*
Reg. No./Substance:
7647-01-0/Hydrochloric Acid

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

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