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Single use versus reusable digital flexible ureteroscopes: A prospective comparative study.

Jonathan Kam1,2,3, Yuigi Yuminaga1, Kieran Beattie1

  • 1Nepean Urology Research Group, Sydney, New South Wales, Australia.

International Journal of Urology : Official Journal of the Japanese Urological Association
|August 27, 2019
PubMed
Summary

Single-use digital flexible ureteroscopes offer comparable visibility and maneuverability to reusable models. These disposable scopes achieve similar clinical outcomes, presenting a cost-effective alternative for ureteroscopy procedures.

Keywords:
endoscopeskidney calculilaser lithotripsyrenoscopyureteroscopy

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Area of Science:

  • Urology
  • Medical Devices
  • Surgical Technology

Background:

  • Flexible ureteroscopy is a key procedure for treating upper tract urinary pathologies.
  • The development of single-use digital flexible ureteroscopes aims to address challenges associated with reusable scopes, such as cost and reprocessing.
  • Comparing the performance of novel single-use digital scopes against established reusable systems is crucial for clinical adoption.

Purpose of the Study:

  • To evaluate and compare the performance and surgical outcomes of two distinct single-use digital flexible ureteroscopes against a reusable video flexible ureteroscope.
  • To assess surgeon-reported metrics including visibility and maneuverability.
  • To analyze operative outcomes and complication rates associated with each scope type.

Main Methods:

  • A prospective study involving 150 patients undergoing retrograde flexible ureteroscopy.
  • Three ureteroscope types were utilized: LithoVue (single-use digital), PU3022A (single-use digital), and Olympus URF-V2 (reusable digital).
  • Surgeon-rated visibility and maneuverability (5-point Likert scale), operative time, relook rates, scope failures, and complications were recorded.

Main Results:

  • The reusable Olympus URF-V2 demonstrated superior visibility and maneuverability compared to both single-use scopes and the PU3022A, respectively.
  • The LithoVue showed higher visibility and maneuverability scores than the PU3022A.
  • No significant differences were observed in operative time, relook rates, scope failure, or complication rates across the three groups.

Conclusions:

  • Single-use digital flexible ureteroscopes provide visibility and maneuverability approaching that of reusable digital flexible ureteroscopes.
  • Disposable flexible ureteroscopes achieve comparable clinical outcomes to reusable versions, potentially offering a more economical solution.