PTU - Polskie Towarzystwo Urologiczne
list of articles:

NEW MODEL OF LITHOTRIPTOR. PRELIMINARY RESULTS
Article published in Urologia Polska 1997/50/3.

authors

Tomasz Jakubczyk 1, Janusz Judycki 1, Jerzy Etienne 2, Andrzej Borkowski 1, Tadeusz Krzeski 1, Leszek Filipczyński 2, Bogusław Zienkiewicz 2
1 Katedra i Klinika Urologii Akademii Medycznej w Warszawie
Kierownik: prof. dr hab. med. Andrzej Borkowski
2 Zaktad UltradĽwięków Instytutu Podstawowych Problemów Techniki
Polskiej Akademii Nauk
Kierownik: prof. dr hab. Andrzej Nowicki

keywords

urinary tract urolithiasis lithotripsy lithotriptor

summary

Objective. Since 1989 in the Department of Ultrasonics, Institute of
Fundamental Technological Research, Polish Academy of Science, researches
have been made to work out new model of lithotriptor, which was finally
constructed in 1993. Our objective was to evaluate preliminary results of urinary
stones lithotripsy using this lithotriptor.
Patients and methods. We evaluated 18 patients with urinary stones treated
from August to November 1996 by Extracorporeal Shock Wave Lithotripsy using
the new model of lithotriptor. 18 Sessions of ESWL were performed. Stones
sizes varied from 7x6 mm to 24x18 mm. 15 stones were located in kidneys, 3 in
ureters. Plain abdominal X-ray on the 7-th day and ultrasound examination
on the 1-st and 7-th day after treatment were done during the follow-up.
Results. Desintegration of stones was found out in all cases after one
treatment. ESWL with new model of lithotriptor resulted in complete stone
discharge in 5 cases, decrease in stone size in 7 cases, desintegration without
discharge in 6 cases. ESWL Sessions were painless regardless of shock wave
energy. No pathological changes in renal ultrasound after treatment were found.
Conclussions. New model of lithotriptor meets clinical and safety
re±uirements of lithotripsy. Preliminary evaluation showed efficacy comparable
to other second generation lithotriptors.

references

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