Factors influencing stone-free rate of Extracorporeal Shock Wave Lithotripsy (ESWL): a cohort studyShow others and affiliations
2022 (English)In: Scandinavian journal of urology, ISSN 2168-1805, E-ISSN 2168-1813, Vol. 56, no 3, p. 237-243Article in journal (Refereed) Published
Abstract [en]
Objective: To evaluate the success rate of Extracorporeal Shock Wave Lithotripsy (ESWL) therapy and identify relevant treatment-specific factors affecting stone-free rate (SFR) after ESWL.
Materials and methods: All ESWL treatments in the years 2016-2019, in angelholm Hospital, Skane, Sweden were analysed retrospectively. Primary outcome was stone-free rate (SFR) at 3 months. Univariate logistic regression was used followed by multivariable regression. Lasso analysis was made to adjust for treatment-specific factors such as age, stone size, skin-to-stone distance (SSD), stone attenuation, number of treatments, stone location and presence of a urinary stent.
Results: Factors affecting successful ESWL treatment were lower age (p < 0.001), smaller stone size and volume (both p = 0.001). SSD, stone attenuation, sex, laterality and drainage did not have an effect on SFR in this study. After the first ESWL treatment session, 46.7% of the patients were stone-free.
Conclusion: Results indicate that stone size and age are the most predictive factors for ESWL outcome. Based on this, we present a simple model for prediction of SFR after ESWL, to be used when counseling patients before ESWL treatment.
Place, publisher, year, edition, pages
Taylor & Francis, 2022. Vol. 56, no 3, p. 237-243
Keywords [en]
Extracorporeal shock-wave lithotripsy, monotherapy, infection, stone free rate, outcome, ureteric stone, ureteroscopy
National Category
Urology and Nephrology
Identifiers
URN: urn:nbn:se:oru:diva-98599DOI: 10.1080/21681805.2022.2055137ISI: 000779955500001PubMedID: 35400281Scopus ID: 2-s2.0-85129170267OAI: oai:DiVA.org:oru-98599DiVA, id: diva2:1652474
Note
Funding agency:
Gorthon foundation
2022-04-192022-04-192023-12-08Bibliographically approved