Document Detail

Effects of acute urinary bladder overdistension on bladder response during sacral neurostimulation.
MedLine Citation:
PMID:  10473998     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: Urinary retention and micturition disorders after overdistension are clinically well-known complications of subvesical obstruction. We attempted to evaluate whether bladder overdistension influences bladder response and whether overdistension supports detrusor decompensation. METHODS: Following lumbal laminectomy in 9 male foxhounds, the sacral anterior roots S2 and S3 were placed into a modified Brindley electrode for reproducible and controlled detrusor activation. The bladder was filled in stages of 50 ml from 0 to 700 ml, corresponding to an overdistension. At each volume, the bladder response during sacral anterior root stimulation was registered. After overdistension, the bladder was refilled stepwise from 0 to 300 ml and stimulated. RESULTS: In all dogs, the bladder response was influenced by the intravesical volume. The maximum pressure (mean 69.1 cm H(2)O) was observed at mean volume of 100 ml. During overdistension, a significant reduction in bladder response of more than 80% was seen. After overdistension, a significant reduction in intravesical pressure of 19.0% was observed. In 2 cases, reduction in bladder response was more than 50% after a single overdistension. CONCLUSIONS: We conclude that motoric bladder function is influenced during and after overdistension. A single bladder overdistension can support acute and long-lasting detrusor decompensation. In order to protect motoric bladder function, bladder overdistension must be prevented.
S Bross; S Schumacher; J R Scheepe; S Zendler; P M Braun; P Alken; K Jünemann
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  European urology     Volume:  36     ISSN:  0302-2838     ISO Abbreviation:  Eur. Urol.     Publication Date:  1999 Oct 
Date Detail:
Created Date:  1999-11-23     Completed Date:  1999-11-23     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7512719     Medline TA:  Eur Urol     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  354-9     Citation Subset:  IM    
Neuro-Urological Laboratory, Department of Urology, University Hospital Mannheim of the University of Heidelberg, Mannheim, Germany.
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MeSH Terms
Dilatation, Pathologic / physiopathology
Electric Stimulation
Lumbosacral Plexus / physiology*
Urinary Bladder / innervation,  physiology*
Urinary Retention / physiopathology

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