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[Active forces of urinary continence and urethral fatigability. Application to stress urinary incontinence in women].

Authors
  • Amarenco, G
  • Denys, P
  • Kerdraon, J
Type
Published Article
Journal
Journal de Gynécologie Obstétrique et Biologie de la Reproduction
Publisher
Elsevier
Publication Date
Jan 01, 1993
Volume
22
Issue
4
Pages
361–365
Identifiers
PMID: 8360433
Source
Medline
License
Unknown

Abstract

Eighteen women who had urinary stress incontinence were studied to find the existence of urethral fatigue on effort by using a sphincterometric technique. Urethral pressure measurements at rest as compared with after six heavy coughs showed a mean lowering of the urethral pressure of 40% (range 24.5%-90%) in 10 women. Spectral analysis of the electromyographic trace of the striated urethral sphincter at rest and then after coughing confirms that the striated muscle and the periurethral tissues are involved with a marked quantitative lessening of electric sphincter activity. The clinical, physiopathological, prognostic and therapeutic consequences of this new concept are discussed, together with their relationship to other active forces involved in continence.

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