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Related Experiment Videos

Minimally invasive ureteral stent retrieval.

William N Taylor1, Ian T McDougall

  • 1Division of Urology, Department of Surgery, The University of British Columbia, Vancouver, Canada.

The Journal of Urology
|October 24, 2002
PubMed
Summary

A new non-surgical technique successfully retrieved ureteral stents in 97% of patients using a magnetic catheter. This minimally invasive method offers a simpler, safer alternative to traditional cystoscopic stent removal.

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Area of Science:

  • Urology
  • Minimally Invasive Surgery
  • Biomedical Engineering

Background:

  • Ureteral stents are commonly used after urologic procedures.
  • Traditional stent removal often requires cystoscopy, an invasive endoscopic procedure.
  • There is a need for less invasive methods for ureteral stent retrieval.

Purpose of the Study:

  • To develop and evaluate a minimally invasive, non-cystoscopic method for ureteral stent retrieval.
  • To assess the feasibility and efficacy of a magnetic retrieval system for ureteral stents.

Main Methods:

  • A ureteral stent with an attached stainless steel bead was placed in 30 patients.
  • A urethral catheter with a rare earth magnet was used for stent retrieval.
  • The procedure involved attracting the stainless steel bead with the magnet to extract the stent.

Main Results:

  • Successful stent retrieval was achieved in 29 out of 30 patients (97% success rate).
  • The retrieval was performed without difficulty or patient discomfort in most cases.
  • One failure occurred in a patient with an enlarged prostate gland.

Conclusions:

  • Minimally invasive, non-endoscopic ureteral stent retrieval is feasible and highly effective.
  • The magnetic retrieval system demonstrated sufficient attractive force for successful stent extraction.
  • This technique offers a simpler, less invasive alternative to cystoscopic stent removal with no reported adverse effects.

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