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

  • Ralph V. Clayman
  • Bruce L. McClennan


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.


Shock Wave Shock Wave Lithotripsy Extracorporeal Shock Wave Lithotripsy Transcutaneous Electrical Nerve Stimulator Fragmentation Rate 
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  1. 1.
    Chaussy C, Schmiedt E, Jocham D, et al: First clinical experience with extracorporeally induced destruction of kidney stones by shock waves. J Urol 127: 417, 1982.PubMedGoogle Scholar
  2. 2.
    Fuchs GJ and Chaussy CG: Extracorporeal shock wave lithotripsy: an update. Endourology 2: 1, 1987.Google Scholar
  3. 3.
    Wilbert DM, Reichenberger H, Noske E, et al: New generation shock wave lithotripsy. J Urol 138: 563, 1987.PubMedGoogle Scholar
  4. 4.
    Fernandez J, Clayman RV, Gray D, et al: Transcutaneous electrical nerve stimulator: an approach to anesthesia-free shock wave lithotripsy with the Lithostar unit. In Lingeman JE and Newman DM (eds): Shock Wave Lithotripsy: State of the Art. New York: Plenum Press, 1988.Google Scholar
  5. 5.
    Lingeman JE, Newman DM, Mertz JHO, et al: Extracorporeal shock wave lithotripsy: the Methodist Hospital of Indiana experience. J Urol 135: 1134, 1986.PubMedGoogle Scholar

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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