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Published in: Urolithiasis 1/2023

01-12-2023 | Ureterorenoscopy | Research

Prospective comparison of extracorporeal shock wave lithotripsy versus flexible ureterorenoscopy in patients with non–lower pole kidney stones under the COVID-19 pandemic

Authors: Song Bai, Yunhong Zhan, Chunyu Pan, Gang Liu, Jia Li, Liping Shan

Published in: Urolithiasis | Issue 1/2023

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Abstract

Both shock wave lithotripsy (SWL) and flexible ureterorenoscopy (F-URS) are recommended as the first choice for non-lower pole kidney stones. Therefore, we conducted a prospective study to evaluate the efficacy, safety, and cost of SWL versus F-URS in patients with solitary non-lower pole kidney stones ≤ 20 mm under the COVID-19 pandemic. This prospective study was conducted in a tertiary hospital from June 2020 to April 2022. Patients who underwent lithotripsy (SWL or F-URS) for non-lower pole kidney stones were enrolled in this study. The stone-free rate (SFR), retreatment rate, complications, and cost were recorded. Propensity score-matched (PSM) analysis was performed. A total of 699 patients were finally included, of which 81.3% (568) were treated with SWL and 18.7% (131) underwent F-URS. After PSM, SWL showed equivalent SFR (87.9% vs. 91.1%, P = 0.323), retreatment rate (8.6% vs. 4.8%, P = 0.169), and adjunctive procedure (2.6% vs. 4.9%, P = 0.385) compared with F-URS. Complications were scarce and also comparable between SWL and F-URS (6.0% vs 7.7%, P > 0.05), while the incidence of ureteral perforation was higher in the F-URS group compared with the SWL group (1.5% vs 0%, P = 0.008). The hospital stay was significantly shorter (1 day vs 2 days, P < 0.001), and the cost was considerably less (1200 vs 30,083, P < 0.001) in the SWL group compared with the F-URS group. This prospective cohort demonstrated that SWL had equivalent efficacy with more safety and cost benefits than F-URS in treating patients with solitary non–lower pole kidney stones ≤ 20 mm. During the COVID-19 pandemic, SWL may have benefits in preserving hospital resources and limiting opportunity for virus transmission, compared to URS. These findings may guide clinical practice.
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Metadata
Title
Prospective comparison of extracorporeal shock wave lithotripsy versus flexible ureterorenoscopy in patients with non–lower pole kidney stones under the COVID-19 pandemic
Authors
Song Bai
Yunhong Zhan
Chunyu Pan
Gang Liu
Jia Li
Liping Shan
Publication date
01-12-2023
Publisher
Springer Berlin Heidelberg
Published in
Urolithiasis / Issue 1/2023
Print ISSN: 2194-7228
Electronic ISSN: 2194-7236
DOI
https://doi.org/10.1007/s00240-023-01412-y

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