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Physiological and pathological urethral pressure variations

R L Vereecken1

  • 1Department of Urology, St. Pieter University Hospital, Leuven, Belgium.

Urologia Internationalis
|January 1, 1996
PubMed
Summary
This summary is machine-generated.

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Pathological urethral instability differs from normal variations by significant pressure changes (>25 cm H2O), short duration (1-5s), sphincter inhibition, and early onset during bladder filling.

Area of Science:

  • Urology
  • Physiology

Background:

  • Urethral pressure variations can be physiological or pathological.
  • Differentiating these is crucial for accurate diagnosis and treatment.

Purpose of the Study:

  • To establish clear criteria for differentiating pathological urethral instability from physiological urethral pressure variations.

Main Methods:

  • Analysis of 202 patients.
  • Comprehensive literature review.

Main Results:

  • Pathological urethral instability is characterized by pronounced amplitude (>25 cm H2O).
  • It has a short duration (1-5 seconds) and simultaneous sphincter inhibition.
  • These phenomena begin early in bladder filling (around 100 ml).

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Conclusions:

  • Defined criteria allow differentiation between pathological and physiological urethral pressure variations.
  • This distinction aids in diagnosing urethral instability accurately.