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Extracorporeal shock-wave lithotripsy with Lithostar lithotriptor.

N Rodrigues Netto1, G C Lemos, J F Claro

  • 1Division of Urology, Hospital Israelita Albert Einstein, São Paulo, Brazil.

Urology
|November 11, 1992
PubMed
Summary

Extracorporeal shock-wave lithotripsy (ESWL) with the Lithostar effectively treated kidney and ureteral stones in 193 patients. High success rates and minimal hospitalization demonstrate its favorable initial clinical experience.

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Area of Science:

  • Urology
  • Nephrology
  • Medical Devices

Background:

  • Kidney and ureteral stones pose a significant health burden.
  • Extracorporeal shock-wave lithotripsy (ESWL) is a common treatment modality.
  • The Lithostar lithotriptor represents a new option for stone fragmentation.

Purpose of the Study:

  • To report the initial clinical experience with the Lithostar lithotriptor for treating renal and ureteral calculi.
  • To evaluate the efficacy, safety, and patient outcomes of ESWL using this new device.

Main Methods:

  • A retrospective analysis of 248 ESWL treatments performed on 210 stones in 193 patients.
  • Data collected included stone location (renal vs. ureteral), anesthesia type, number of shocks, energy levels, and follow-up outcomes.

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  • Success rates, retreatment rates, and hospitalization requirements were assessed.

    • Main Results:

    • High success rates were observed: 88.0% for renal calculi and 95.5% for ureteral calculi.
    • Most treatments were performed with minimal or no anesthesia (outpatient basis).
    • Hospitalization was not required for the majority of patients (84.4% renal, 89.6% ureteral).
    • A linear relationship was noted between stone size and the number of shock waves needed for fragmentation.

    Conclusions:

    • The Lithostar lithotriptor demonstrates a favorable initial experience for treating kidney and ureteral stones.
    • Its effectiveness, low morbidity, and suitability for outpatient treatment highlight its clinical utility.
    • Further studies may explore long-term outcomes and comparisons with other lithotripsy devices.