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Related Experiment Videos

Ultrasonic lithotriptor for urethral and bladder stones

S el-Fahiq, D M Wallace

    British Journal of Urology
    |June 1, 1978
    PubMed
    Summary

    Ultrasonic lithotripsy effectively fragments bladder and urethral stones using a 30,000 impulses/s vibrating probe. This outpatient procedure uses local anesthesia and a small sheath, minimizing patient trauma.

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    Area of Science:

    • Urology
    • Medical Devices
    • Nephrology

    Background:

    • Bladder and urethral calculi (stones) pose a significant clinical challenge.
    • Traditional stone removal methods can be invasive and associated with complications.

    Purpose of the Study:

    • To evaluate the efficacy and safety of ultrasonic lithotripsy for bladder and urethral calculi.
    • To assess the advantages of a specific ultrasonic lithotriptor system.

    Main Methods:

    • Fifty patients with bladder or urethral calculi underwent per-urethral fragmentation and removal.
    • An ultrasonic lithotriptor with a probe vibrating at 30,000 impulses/s was utilized.
    • Local anesthesia was employed for adult patients, facilitating an outpatient procedure.

    Main Results:

    • Effective fragmentation and removal of bladder and urethral calculi were achieved in all 50 patients.
    • The use of a small (23 F) sheath minimized damage to the bladder and urethra.
    • A modified sheath allowed for fragmentation of larger stones.

    Conclusions:

    • Ultrasonic lithotripsy is an effective and safe method for treating bladder and urethral calculi.
    • The described technique offers advantages in terms of minimal invasiveness and reduced patient trauma.
    • Outpatient management with local anesthesia is feasible for this procedure.

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