Document Detail


Selection of intestinal segments for bladder substitution: physical and physiological characteristics.
MedLine Citation:
PMID:  3343736     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Detubularized bowel segments provide greater capacity at lower pressure and require a shorter length of intestine than do intact segments. Four factors account for their superiority: 1) their configuration takes advantage of the geometric fact that volume increases by the square of the radius so that a patch or pouch has a larger diameter than a tube, 2) they accommodate to filling more readily because, as LaPlace's law states, the container with the greater radius and, thus, the greater mural tension will hold larger volumes at lower pressure, 3) compliance is superior to that of the tubular bowel and 4) contractile ability is blunted by the failure of contractions to encompass the entire circumference. For these reasons detubularized segments store more urine at lower pressures.
Authors:
F Hinman
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of urology     Volume:  139     ISSN:  0022-5347     ISO Abbreviation:  J. Urol.     Publication Date:  1988 Mar 
Date Detail:
Created Date:  1988-04-01     Completed Date:  1988-04-01     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0376374     Medline TA:  J Urol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  519-23     Citation Subset:  AIM; IM    
Affiliation:
Department of Urology, University of California School of Medicine, San Francisco.
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MeSH Terms
Descriptor/Qualifier:
Biophysical Phenomena
Biophysics
Compliance
Humans
Ileum / physiology,  surgery*
Muscle Contraction
Pressure
Urinary Bladder / surgery*

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


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