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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
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.
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.