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Related Experiment Videos

New coaxial ureteral stricture knife.

S M Selikowitz1

  • 1Department of Surgery, Veterans Administration Medical, Vermont.

The Urologic Clinics of North America
|February 1, 1990
PubMed
Summary

A novel cold blade ureteral knife offers a less traumatic endoscopic approach for upper urinary tract strictures, providing visual control and better short-term results than dilation. Future studies will assess long-term efficacy.

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Area of Science:

  • Urology
  • Minimally Invasive Surgery
  • Endourology

Background:

  • Upper urinary collecting system strictures present surgical challenges.
  • Open repair is often less desirable for patients than endoscopic procedures.
  • Traditional endoscopic methods like dilation can cause ureteral trauma.

Observation:

  • A new cold blade ureteral knife allows for precise, visually controlled incisions.
  • This tool is compatible with both rigid and flexible endoscopes.
  • It offers a less traumatic alternative to blind dilation.

Findings:

  • The cold blade technique demonstrates reduced trauma to the ureter compared to dilation.
  • Patient acceptance is higher due to direct visual control by the surgeon.
  • Short-term results suggest improved outcomes over more traumatic endoscopic procedures.

Implications:

  • The ureteral knife provides a promising minimally invasive option for managing urinary tract obstructions.
  • Further long-term studies are needed to fully evaluate its efficacy for resistant strictures.
  • Potential exists for conversion to an electrosurgical device for enhanced hemostasis and incision.

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