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Related Experiment Videos

Management of artificial urinary sphincter dysfunction.

Frédéric Maillet1, Jean-Marie Buzelin, Olivier Bouchot

  • 1Clinique Urologique, CHU Hôtel-Dieu, 44093 Nantes, France.

European Urology
|July 13, 2004
PubMed
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Artificial urinary sphincter (AUS) dysfunction risk increases with follow-up time. A systematic approach to diagnose and replace only the defective component improves management outcomes.

Area of Science:

  • Urology
  • Medical Device Engineering
  • Surgical Outcomes

Background:

  • Long-term artificial urinary sphincter (AUS) outcomes are unpredictable due to component breakdown risks.
  • Accurate diagnosis and management strategies are crucial for addressing AUS malfunctions.

Purpose of the Study:

  • To define a diagnostic strategy for artificial urinary sphincter (AUS) problems.
  • To establish an appropriate management approach for identified AUS component failures.

Main Methods:

  • Analysis of 298 AMS 800 artificial urinary sphincters implanted between 1985 and 2000.
  • Diagnosis often followed recurrent urinary incontinence, involving pump checks, radiographic, and urodynamic studies.
  • Systematic identification of defective components to guide targeted replacement.

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Main Results:

  • 19% of patients (55/288) required re-operation after a median follow-up of 23 months.
  • Common issues included depressurization (55 cases), device dysfunction (18 cases), and sphincter removal (11 cases).
  • Component-specific replacement was performed in 40 cases, avoiding complete device replacement.

Conclusions:

  • The probability of artificial urinary sphincter (AUS) dysfunction increases with longer follow-up periods.
  • Systematically identifying and replacing only the defective component is an effective management strategy.