Extracorporeal Shock Wave Lithotripsy with an Electromagnetic Acoustic Source (Lithostar): A Preliminary Report

  • Ralph V. Clayman
  • Bruce L. McClennan

Abstract

The Siemens Lithostar is a second-generation extracorporeal shock wave lithotripter that uses an electromagnetic acoustic source (EMAS) to achieve lithotripsy. Initial experience with 175 patients (212 treatments) reveals a fragmentation rate of 87% with the majority of patients being treated with minimal or no anesthetic agents on an outpatient basis. Follow-up at three months shows a stone-free rate of 59% with 11% of patients having fragments greater than 5 mm. The advantages of this form of lithotripsy include the need for minimal or no anesthesia, the possibility of outpatient treatment, the presence of acystoscopy table incorporated into the unit, and the ability to obtain hard copy radiographs during treatment.

Keywords

Shock Wave Shock Wave Lithotripsy Extracorporeal Shock Wave Lithotripsy Transcutaneous Electrical Nerve Stimulator Fragmentation Rate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Springer Science+Business Media New York 1988

Authors and Affiliations

  • Ralph V. Clayman
    • 1
  • Bruce L. McClennan
    • 2
  1. 1.Division of Urologic SurgeryWashington University School of MedicineSt. LouisUSA
  2. 2.Department of RadiologyMallinckrodt Institute of RadiologySt. LouisUSA

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