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Patterns of urinary flow in benign prostatic hypertrophy.

R M Anikwe

    International Surgery
    |August 1, 1976
    PubMed
    Summary

    Urinary flow patterns in men over 50 with benign prostatic hypertrophy were studied. No specific flow pattern definitively indicates obstruction, challenging previous findings.

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    Area of Science:

    • Urology
    • Geriatric Medicine
    • Medical Diagnostics

    Background:

    • Benign prostatic hypertrophy (BPH) is common in men over 50.
    • Urinary flow patterns are used to assess bladder outlet obstruction.
    • Previous studies suggested specific flow patterns indicate BPH-related obstruction.

    Purpose of the Study:

    • To investigate urinary flow patterns in men over 50 with and without benign prostatic hypertrophy.
    • To determine if any urinary flow pattern is characteristic of bladder outlet obstruction due to BPH.
    • To re-evaluate previous findings on urinary flow patterns and BPH.

    Main Methods:

    • Conducted multiple urinary flow recordings on 51 men over 50 years of age.
    • Classified patients into groups with and without clinical obstruction due to BPH.
    • Defined six urinary flow patterns (types 0-5).

    Main Results:

    • Types 0-3 were observed in patients without obstruction.
    • All six defined flow patterns were found in patients with clinical obstruction.
    • Post-surgery, only types 1, 2, and 3 were observed.
    • No specific flow pattern was found to be characteristic of BPH-related bladder outlet obstruction.
    • Observed differences in flow patterns were attributed to age distribution variations between study groups.

    Conclusions:

    • Urinary flow pattern alone is not a definitive diagnostic tool for bladder outlet obstruction in benign prostatic hypertrophy.
    • Previous assumptions about characteristic flow patterns may be influenced by age-related differences in patient cohorts.
    • Further research is needed to refine diagnostic methods for BPH-related obstruction.

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