Document Detail


Day-to-day reproducibility of prolonged ambulatory colonic manometry in healthy subjects.
MedLine Citation:
PMID:  20345373     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Although colonic manometry provides useful information regarding colonic physiology, considerable variability has been reported both for regional motility and manometric patterns. Whether colonic manometry is reproducible is not known.
METHODS: Seven healthy volunteers (three men, four women, mean age = 34 years) underwent two studies of 24-h ambulatory colonic manometry, each 2 weeks apart. Manometry was performed by placing a six-sensor solid-state probe, up to the hepatic flexure and anchored to colonic mucosa. Colonic motility was assessed by the number and area-under-curve (AUC) of pressure waves and motility patterns such as high-amplitude propagating contractions (HAPC). Waking and meal-induced gastrocolonic responses were also assessed. Paired t-test was used to examine the reproducibility and intra and interindividual variability.
KEY RESULTS: The number of pressure waves and propagating pressure waves and HAPC, and AUC were similar between the two studies. Diurnal variation, waking and meal-induced gastrocolonic responses were also reproducible. There was some variability in the incidence of individual colonic motor patterns.
CONCLUSIONS & INFERENCES: Colonic manometry findings were generally reproducible, particularly for the assessment of key physiologic changes, such as meal-induced gastrocolonic, HAPC, and waking responses.
Authors:
S S C Rao; S Singh; R Mudipalli
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't     Date:  2010-03-25
Journal Detail:
Title:  Neurogastroenterology and motility : the official journal of the European Gastrointestinal Motility Society     Volume:  22     ISSN:  1365-2982     ISO Abbreviation:  Neurogastroenterol. Motil.     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-06-17     Completed Date:  2010-09-16     Revised Date:  2011-07-28    
Medline Journal Info:
Nlm Unique ID:  9432572     Medline TA:  Neurogastroenterol Motil     Country:  England    
Other Details:
Languages:  eng     Pagination:  640-e178     Citation Subset:  IM    
Affiliation:
Division of Neurogastroenterology, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa city, IA 52242, USA. satish-rao@uiowa.edu
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MeSH Terms
Descriptor/Qualifier:
Adult
Area Under Curve
Colon / physiology*
Data Interpretation, Statistical
Eating / physiology
Female
Gastrointestinal Motility / physiology
Humans
Male
Manometry / instrumentation,  methods*
Middle Aged
Monitoring, Ambulatory / methods*
Muscle Contraction / physiology
Reproducibility of Results
Software
Wakefulness / physiology
Young Adult
Grant Support
ID/Acronym/Agency:
R01 DK057100-08/DK/NIDDK NIH HHS; R01 DK057100-10/DK/NIDDK NIH HHS; R01DK 57100-03/DK/NIDDK NIH HHS; RR00059/RR/NCRR NIH HHS
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