Moderne Steintherapie

Miernik, Arkadiusz; Wilhelm, Konrad; Ardelt, Peter; Bulla, Stefan; Schoenthaler, Martin

doi:10.1007/s00120-012-2828-3

Cited by 20 publications

(1 citation statement)

References 36 publications

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“…The use of extracorporeal shock wave lithotripsy (SWL) has decreased in recent decades due to changing indications and technological developments [ 1 – 3 ]. Although SWL still offers the least invasive treatment for urolithiasis, more patients are now treated endoscopically.…”

Section: Introductionmentioning

confidence: 99%

High-frequency shock wave lithotripsy: stone comminution and evaluation of renal parenchyma injury in a porcine ex-vivo model

Rassweiler-Seyfried,

Mayer,

Goldenstedt

et al. 2023

World J Urol

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Background The electrohydraulic high-frequency shock wave (Storz Medical, Taegerwilen, Switzerland) is a new way to create small fragments with frequencies up to 100 Hertz (Hz). This study evaluated the efficacy and safety of this method in a stone and porcine model. Materials and methods BEGO stones were put in a condom in a specifically designed fixture treated with different modulations to see stone comminution. Standardized ex vivo porcine model with perfused kidneys with 26 upper and lower poles of 15 kidneys was treated with the following modulations: voltage 16–24 kV, capacitor 12 nF and frequency up to 100 Hz. 2000–20,000 shock waves were applied to each pole. The kidneys were perfused with barium sulfate solution (BaSO4) and x-ray was performed to quantify the lesions using pixel volumetry. Results There was no correlation between the number of shock waves and the powdering degree or the applied Energy and the grade of pulverization in the stone model. Regarding the perfused kidney model, the number of shock waves, applied voltage and frequency had no direct correlation with the occurrence of parenchymal lesions The detected lesions of the renal parenchyma were minimal, technical parameters had no significant impact and the lesions did not differ from the results of former experiments using 1–1.5 Hz in the same model. Conclusions High-frequency shock wave lithotripsy can produce small stone fragments to pass in a very short time. The injury to the renal parenchyma is comparable to the results of the conventional SWL using 1–1.5 Hz.

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Section: Introductionmentioning

confidence: 99%