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Related Experiment Videos

First experience with a modified Siemens Lithostar shock wave system.

K D Volmer1, G Köhler, W Folberth

  • 1Department of Urology, Städtische Kliniken, Fulda, FRG.

European Urology
|January 1, 1991
PubMed
Summary

A modified Siemens Lithostar shock wave system offers improved renal calculi treatment with higher energy and reduced shock wave numbers. This innovation enhances results for complex stones and doubles the system

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Area of Science:

  • Biomedical Engineering
  • Urology
  • Nephrology

Background:

  • Extracorporeal shock wave lithotripsy (ESWL) is a common treatment for kidney stones.
  • Existing ESWL systems face limitations in treating complex or large calculi.
  • System modifications can potentially improve treatment efficacy and patient outcomes.

Purpose of the Study:

  • To evaluate a modified Siemens Lithostar shock wave system in clinical settings.
  • To assess the system's performance in treating renal calculi, particularly complex stone types.
  • To determine the impact of modifications on treatment parameters, efficacy, and safety.

Main Methods:

  • Modification of a Siemens Lithostar shock wave system to increase focal pressure and energy density.
  • Clinical investigation of the modified system for treating renal calculi.

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  • Analysis of shock wave numbers, treatment outcomes, need for anesthesia, side effects, and system service life.

    • Main Results:

    • The modified system achieved higher focal pressure and energy density.
    • Significant reduction in the number of shock waves required per treatment.
    • Improved treatment results for challenging stones, including staghorn and infection calculi.
    • Over 90% of treatments performed without anesthesia or analgesia.
    • No significant adverse side effects were observed.
    • Service life of the modified system increased twofold.

    Conclusions:

    • The modified Siemens Lithostar system demonstrates enhanced efficacy for renal calculi treatment.
    • Higher energy output improves outcomes for difficult stone types while maintaining patient comfort.
    • The system modification offers a safer, more efficient, and durable solution for kidney stone management.