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Shockwave Lithotripsy Versus Ureteroscopic Treatment as Therapeutic Interventions for Stones of the Ureter (TISU): A Multicentre Randomised Controlled Non-inferiority Trial.
Eur Urol. 2021 07; 80(1):46-54.EU

Abstract

BACKGROUND

Renal stone disease is common and can cause emergency presentation with acute pain due to ureteric colic. International guidelines have stated the need for a multicentre randomised controlled trial (RCT) to determine whether a non-invasive outpatient (shockwave lithotripsy [SWL]) or surgical (ureteroscopy [URS]) intervention should be the first-line treatment for those needing active intervention. This has implications for shaping clinical pathways.

OBJECTIVE

To report a pragmatic multicentre non-inferiority RCT comparing SWL with URS.

DESIGN, SETTING, AND PARTICIPANTS

This trial tested for non-inferiority of up to two sessions of SWL compared with URS as initial treatment for ureteric stones requiring intervention.

OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS

The primary outcome was whether further intervention was required to clear the stone, and secondary outcomes included quality of life assessment, severity of pain, and serious complications; these were based on questionnaires at baseline, 8 wk, and 6 mo. We included patients over 16 yr with a single ureteric stone clinically deemed to require intervention. Intention-to-treat and per-protocol analyses were planned.

RESULTS AND LIMITATIONS

The study recruited between July 1, 2013 and June 30, 2017. We recruited 613 participants from a total of 1291 eligible patients, randomising 306 to SWL and 307 to URS. Sixty-seven patients (22.1%) in the SWL arm needed further treatment compared with 31 patients (10.3%) in the URS arm. The absolute risk difference was 11.7% (95% confidence interval 5.6%, 17.8%) in favour of URS, which was inside the 20% threshold we set for demonstrating noninferiority of SWL.

CONCLUSIONS

This RCT was designed to test whether SWL is non-inferior to URS and confirmed this; although SWL is an outpatient noninvasive treatment with potential advantages both for patients and for reducing the use of inpatient health care resources, the trial showed a benefit in overall clinical outcomes with URS compared with SWL, reflecting contemporary practice. The Therapeutic Interventions for Stones of the Ureter (TISU) study provides new evidence to help guide the choice of modality for this common health condition.

PATIENT SUMMARY

We present the largest trial comparing ureteroscopy versus extracorporeal shockwave lithotripsy for ureteric stones. While ureteroscopy had marginally improved outcome in terms of stone clearance, as expected, shockwave lithotripsy had better results in terms of health care costs. These results should enable patients and health care providers to optimise treatment pathways for this common urological condition.

Authors+Show Affiliations

Department of Urology, Imperial College Healthcare NHS Trust, London, W2 1NY, UK. Electronic address: ranan.dasgupta1@nhs.net.Centre for Healthcare Randomised Trials, University of Aberdeen, Health Sciences Building, Foresterhill, Aberdeen, UK.Health Services Research Unit, University of Aberdeen, Health Sciences Building, Foresterhill, Aberdeen, UK.Centre for Healthcare Randomised Trials, University of Aberdeen, Health Sciences Building, Foresterhill, Aberdeen, UK.Centre for Healthcare Randomised Trials, University of Aberdeen, Health Sciences Building, Foresterhill, Aberdeen, UK.Health Economics Research Unit, University of Aberdeen, Aberdeen, UK.NHS Grampian, Department of Urology, Aberdeen Royal Infirmary, Aberdeen, UK; Academic Urology Unit, University of Aberdeen, Health Sciences Building, Foresterhill, Aberdeen, UK.NHS Grampian, Department of Urology, Aberdeen Royal Infirmary, Aberdeen, UK.Edinburgh Clinical Trials Unit, Usher Institute of Population Health Sciences & Informatics, University of Edinburgh, Edinburgh, UK.Department of Urology, St Georges University Hospitals NHS Foundation Trust, London, UK.Department of Urology, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich, UK.Stone Patient Advisory Group, Section of Endourology, British Association of Urological Surgeons, London, UK.Bristol Urological Institute, North Bristol NHS Trust, Bristol, UK.Academic Urology Unit, University of Aberdeen, Health Sciences Building, Foresterhill, Aberdeen, UK.Nottingham Clinical Trials Unit, University of Nottingham, University Park, Nottingham, UK.NHS Grampian, Department of Urology, Aberdeen Royal Infirmary, Aberdeen, UK.

Pub Type(s)

Journal Article
Multicenter Study
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

33810921

Citation

Dasgupta, Ranan, et al. "Shockwave Lithotripsy Versus Ureteroscopic Treatment as Therapeutic Interventions for Stones of the Ureter (TISU): a Multicentre Randomised Controlled Non-inferiority Trial." European Urology, vol. 80, no. 1, 2021, pp. 46-54.
Dasgupta R, Cameron S, Aucott L, et al. Shockwave Lithotripsy Versus Ureteroscopic Treatment as Therapeutic Interventions for Stones of the Ureter (TISU): A Multicentre Randomised Controlled Non-inferiority Trial. Eur Urol. 2021;80(1):46-54.
Dasgupta, R., Cameron, S., Aucott, L., MacLennan, G., Thomas, R. E., Kilonzo, M. M., Lam, T. B. L., N'Dow, J., Norrie, J., Anson, K., Burgess, N., Clark, C. T., Keeley, F. X., MacLennan, S. J., Starr, K., & McClinton, S. (2021). Shockwave Lithotripsy Versus Ureteroscopic Treatment as Therapeutic Interventions for Stones of the Ureter (TISU): A Multicentre Randomised Controlled Non-inferiority Trial. European Urology, 80(1), 46-54. https://doi.org/10.1016/j.eururo.2021.02.044
Dasgupta R, et al. Shockwave Lithotripsy Versus Ureteroscopic Treatment as Therapeutic Interventions for Stones of the Ureter (TISU): a Multicentre Randomised Controlled Non-inferiority Trial. Eur Urol. 2021;80(1):46-54. PubMed PMID: 33810921.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Shockwave Lithotripsy Versus Ureteroscopic Treatment as Therapeutic Interventions for Stones of the Ureter (TISU): A Multicentre Randomised Controlled Non-inferiority Trial. AU - Dasgupta,Ranan, AU - Cameron,Sarah, AU - Aucott,Lorna, AU - MacLennan,Graeme, AU - Thomas,Ruth E, AU - Kilonzo,Mary M, AU - Lam,Thomas B L, AU - N'Dow,James, AU - Norrie,John, AU - Anson,Ken, AU - Burgess,Neil, AU - Clark,Charles T, AU - Keeley,Francis X,Jr AU - MacLennan,Sara J, AU - Starr,Kath, AU - McClinton,Sam, Y1 - 2021/03/31/ PY - 2020/08/09/received PY - 2021/02/26/accepted PY - 2021/4/4/pubmed PY - 2022/2/19/medline PY - 2021/4/3/entrez KW - Extracorporeal shockwave lithotripsy KW - Randomised controlled trial KW - Therapeutic interventions for symptomatic ureteric stones KW - Trial KW - Ureteric stones KW - Ureteroscopy SP - 46 EP - 54 JF - European urology JO - Eur Urol VL - 80 IS - 1 N2 - BACKGROUND: Renal stone disease is common and can cause emergency presentation with acute pain due to ureteric colic. International guidelines have stated the need for a multicentre randomised controlled trial (RCT) to determine whether a non-invasive outpatient (shockwave lithotripsy [SWL]) or surgical (ureteroscopy [URS]) intervention should be the first-line treatment for those needing active intervention. This has implications for shaping clinical pathways. OBJECTIVE: To report a pragmatic multicentre non-inferiority RCT comparing SWL with URS. DESIGN, SETTING, AND PARTICIPANTS: This trial tested for non-inferiority of up to two sessions of SWL compared with URS as initial treatment for ureteric stones requiring intervention. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: The primary outcome was whether further intervention was required to clear the stone, and secondary outcomes included quality of life assessment, severity of pain, and serious complications; these were based on questionnaires at baseline, 8 wk, and 6 mo. We included patients over 16 yr with a single ureteric stone clinically deemed to require intervention. Intention-to-treat and per-protocol analyses were planned. RESULTS AND LIMITATIONS: The study recruited between July 1, 2013 and June 30, 2017. We recruited 613 participants from a total of 1291 eligible patients, randomising 306 to SWL and 307 to URS. Sixty-seven patients (22.1%) in the SWL arm needed further treatment compared with 31 patients (10.3%) in the URS arm. The absolute risk difference was 11.7% (95% confidence interval 5.6%, 17.8%) in favour of URS, which was inside the 20% threshold we set for demonstrating noninferiority of SWL. CONCLUSIONS: This RCT was designed to test whether SWL is non-inferior to URS and confirmed this; although SWL is an outpatient noninvasive treatment with potential advantages both for patients and for reducing the use of inpatient health care resources, the trial showed a benefit in overall clinical outcomes with URS compared with SWL, reflecting contemporary practice. The Therapeutic Interventions for Stones of the Ureter (TISU) study provides new evidence to help guide the choice of modality for this common health condition. PATIENT SUMMARY: We present the largest trial comparing ureteroscopy versus extracorporeal shockwave lithotripsy for ureteric stones. While ureteroscopy had marginally improved outcome in terms of stone clearance, as expected, shockwave lithotripsy had better results in terms of health care costs. These results should enable patients and health care providers to optimise treatment pathways for this common urological condition. SN - 1873-7560 UR - https://www.unboundmedicine.com/medline/citation/33810921/Shockwave_Lithotripsy_Versus_Ureteroscopic_Treatment_as_Therapeutic_Interventions_for_Stones_of_the_Ureter__TISU_:_A_Multicentre_Randomised_Controlled_Non_inferiority_Trial_ DB - PRIME DP - Unbound Medicine ER -