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01-02-2011 | Original Paper

Prediction of outcome of extracorporeal shock wave lithotripsy in the management of ureteric calculi

Authors: Mingqing Wang, Qiduo Shi, Xuguang Wang, Kun Yang, Rui Yang

Published in: Urolithiasis | Issue 1/2011

Abstract

The present study was designed to evaluate the clinical outcome of using extracorporeal shock wave lithotripsy (ESWL) in the treatment of ureteric calculi and to establish a predictive model for the stone-free rate in patients receiving the treatment. A total of 831 patients with ureteric calculi were accepted in this study. Several parameters, including stone site, stone number, stone size, history of urolithiasis, renal colic, hydronephrosis, and double-J ureteric stent, were analyzed using univariate and multivariate analyses. A prediction model was established based on the logistic regression analysis of the significant factors, and the goodness-of-fit of the model was evaluated by employing the Hosmer–Lemeshow test. At a 3-month follow-up after ESWL treatment, the overall stone-free rate was 96.8% (804/831) with no serious complications being found, while the treatment failed in 3.2% (27/831) of the patients. Five factors, including stone number, stone size, history of urolithiasis, renal colic, and double-J ureteric stent contributed significantly to the clinical outcome of the ESWL treatment. The prediction model had a sensitivity and overall accuracy of 99.8 and 96.9%, respectively. The results show that ESWL remains an effective method for treating ureteric calculi. The prediction model established in this study could be used as a method for estimating prognosis in patients following ESWL treatment.

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Title: Prediction of outcome of extracorporeal shock wave lithotripsy in the management of ureteric calculi
Authors: Mingqing Wang
Qiduo Shi
Xuguang Wang
Kun Yang
Rui Yang
Publication date: 01-02-2011
Publisher: Springer-Verlag
Published in: Urolithiasis / Issue 1/2011
Print ISSN: 2194-7228
Electronic ISSN: 2194-7236
DOI: https://doi.org/10.1007/s00240-010-0274-5

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Prediction of outcome of extracorporeal shock wave lithotripsy in the management of ureteric calculi

Abstract

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Abstract

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