Ces Urol 2006, 10(1):59-63 | DOI: 10.48095/cccu2006013

The influence of indwelling stent on treatment results of ureteric stones in vivo

A. Petřík¹, E. Alterová¹, M. Fiala¹, J. Novák¹, F. Záťura²

¹ Urologické oddělení Nemocnice České Budějovice a.s.,

² Urologická klinika Univerzity Palackého Olomouc

Concrement fragmentation in the ureter using ESWL is influenced by the type and properties of the device used, particularly including the Shockwave type and the way of targeting the concrement, the total energy used during therapy, and the Shockwave frequency. Of major importance is also the strucuture of the concrement as well as the presence of a stent. In a retrospective study we evaluated the influence of stent placement in treating ureterolithiasis using extracorporeal lithotripsy. In cases with placement of double pigtail stent, a higher retreatment rate of 1.92 was found as compared to that of 1.56 with in situ therapy (p = < 0.0001) suggesting a negative influence of the double pigtail on ureterolithiasis fragmentation. When evaluating therapy effectiveness using Rassweiler's Efficacy Quotient, better outcomes were obtained for the in situ therapy group (47.76) as compared to the therapy with double pigtail placement (26.39) (p = < 0.0001) suggesting a negative influence of the stent on the outcomes of therapy for ureterolithiasis using ESWL. This fact confirms the previous results of an in vitro experiment. The outcome for clinical practice is to indicate ESWL primarily without stent placement.

Keywords: ESWL, ureteral stone, fragmentation, J-J stentESWL, ureteral stone, fragmentation, J-J stent

Published: January 1, 2006