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Related Experiment Videos

Optimal frequency in extracorporeal shock wave lithotripsy: prospective randomized study.

Erdal Yilmaz1, Ertan Batislam, Murad Basar

  • 1Department of Urology, University of Kirikkale Faculty of Medicine, Kirikkale, Turkey. erdaly69@mynet.com

Urology
|December 20, 2005
PubMed
Summary

The optimal frequency for extracorporeal shock wave lithotripsy (ESWL) is 90 shock waves per minute. This frequency demonstrated superior efficacy and reduced analgesic needs compared to higher or lower rates for kidney stone treatment.

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Area of Science:

  • Urology
  • Nephrology
  • Medical Physics

Background:

  • Urolithiasis, or kidney stones, affects a significant portion of the population.
  • Extracorporeal shock wave lithotripsy (ESWL) is a common treatment modality for kidney stones.
  • Optimizing ESWL parameters is crucial for improving treatment outcomes and patient comfort.

Purpose of the Study:

  • To identify the most effective frequency for ESWL in treating kidney stones.
  • To compare the efficacy, duration, and patient requirements of different ESWL frequencies.
  • To establish optimal ESWL parameters for urolithiasis management.

Main Methods:

  • A randomized study involving 170 patients with radiopaque kidney stones.
  • Patients were divided into three groups receiving ESWL at 120, 90, or 60 shock waves per minute.

Related Experiment Videos

  • Treatment success, duration, analgesic/sedative use, and complications were recorded and analyzed.

    • Main Results:

    • A frequency of 90 shock waves per minute showed a significantly higher success rate than 120 shock waves per minute (P=0.032).
    • Lower analgesic and sedative requirements were observed at 90 and 60 shock waves per minute compared to 120 (P=0.003 and P=0.001, respectively).
    • Treatment duration was longer at 60 shock waves per minute compared to 90 and 120 (P=0.009 and P=0.000, respectively).

    Conclusions:

    • 90 shock waves per minute is the optimal frequency for ESWL regarding efficacy and patient comfort.
    • This frequency balances treatment success with reduced need for analgesia and sedation.
    • Findings provide evidence-based guidance for optimizing ESWL protocols in urology.