Document Detail


Symbolic dynamics of jejunal motility in the irritable bowel.
MedLine Citation:
PMID:  12779876     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Different studies of the irritable bowel syndrome (IBS) by conventional analysis of jejunal motility report conflicting results. Therefore, our aim is to quantify the jejunal contraction activity by symbolic dynamics in order to discriminate between IBS and control subjects. Contraction amplitudes during fasting motility (phase II) are analyzed for 30 IBS and 30 healthy subjects. On the basis of a particular scale-independent discretization of the contraction amplitudes with respect to the median, IBS patients are characterized by increased block entropy as well as increased mean contraction amplitude. In a further more elementary level of analysis these differences can be reduced to specific contraction patterns within the time series, namely the fact that successive large contraction amplitudes are less ordered in IBS than in controls. These significant differences in jejunal motility may point to an altered control of the gut in IBS, although further studies on a representative number of patients have to be done for a validation of these findings. (c) 1999 American Institute of Physics.
Authors:
Renate Wackerbauer; Thomas Schmidt
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Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  Chaos (Woodbury, N.Y.)     Volume:  9     ISSN:  1089-7682     ISO Abbreviation:  Chaos     Publication Date:  1999 Sep 
Date Detail:
Created Date:  2003-Jun-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100971574     Medline TA:  Chaos     Country:  -    
Other Details:
Languages:  ENG     Pagination:  805-811     Citation Subset:  -    
Affiliation:
Max-Planck-Institute for Physics of Complex Systems, 01187-Dresden, Germany.
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