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The uroflowmetry in normal men and after prostatectomy

H C Kuo1

  • 1Department of Urology, Buddhist Tzu-Chi General Hospital, Hualien, Taiwan.

European Urology
|January 1, 1997
PubMed
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Normal aging men maintain good urinary flow. Post-prostatectomy patients experience age-related detrusor contractility decline, impacting urinary flow rate even with similar voided volumes.

Area of Science:

  • Urology
  • Geriatrics
  • Men's Health

Background:

  • Urinary flow parameters are crucial for assessing lower urinary tract symptoms.
  • Understanding age-related changes in uroflowmetry is essential for accurate diagnosis.
  • Prostatectomy can impact bladder function and urinary flow.

Purpose of the Study:

  • To compare uroflow parameters in normal men and post-prostatectomy patients.
  • To investigate urinary flow rate expression in men without bladder outlet obstruction.
  • To analyze the correlation between age, voided volume, and maximal flow rate (Qmax).

Main Methods:

  • Uroflowmetry and transrectal sonography were performed on 514 normal men and 356 post-prostatectomy patients.
  • Subjects were divided into age-based subgroups.

Related Experiment Videos

  • Regression analysis was used to assess correlations between Qmax, age, and volume.

    • Main Results:

    • Voided volume and maximal flow rate (Qmax) decreased with age in normal men.
    • Post-prostatectomy patients showed age-related detrusor contractility impairment, leading to reduced flow rates.
    • Corrected Qmax did not significantly differ with age in normal men, despite lower voided volumes.

    Conclusions:

    • Elderly men without prostatic hyperplasia can maintain good urinary flow and bladder function.
    • Asymptomatic men with low urinary flow may have early-stage infravesical obstruction.
    • Post-prostatectomy patients exhibit age-related decline in detrusor contractility, affecting urinary flow.