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Related Experiment Video

Updated: May 1, 2026

A Murine Model of Irreversible and Reversible Unilateral Ureteric Obstruction
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Primary obstructive megaureter: cutting balloon endo-ureterotomy.

Naima Smeulders1, Francisca Yankovic, Samantha Chippington

  • 1Department of Paediatric Urology, Great Ormond Street Hospital NHS Foundation Trust, London, UK. naima.smeulders@gosh.nhs.uk

Journal of Pediatric Urology
|June 14, 2013
PubMed
Summary
This summary is machine-generated.

This video showcases endo-ureterotomy with a cutting balloon for dilating the vesico-ureteric junction (VUJ) and stenting in primary obstructive megaureter cases. This minimally invasive technique is proposed as a first-line treatment option.

Keywords:
Balloon dilatationEndo-ureterotomyObstructionPrimary obstructive megaureterVesico-ureteric junction

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Area of Science:

  • Urology
  • Minimally Invasive Surgery

Background:

  • Primary obstructive megaureter is a congenital condition requiring intervention.
  • Traditional surgical approaches may involve significant morbidity.

Purpose of the Study:

  • To demonstrate a novel endoscopic technique for treating primary obstructive megaureter.
  • To highlight the use of a cutting balloon for vesico-ureteric junction (VUJ) dilatation.

Main Methods:

  • Endoscopic insertion of a guide-wire through the VUJ into the megaureter.
  • Inflation of a 3 mm cutting balloon to dilate the stenotic VUJ segment.
  • Post-dilatation with a 4 mm balloon and subsequent JJ stent placement for six weeks.

Main Results:

  • The video effectively demonstrates the equipment and step-by-step technique for VUJ endo-ureterotomy.
  • The cutting balloon facilitates successful dilatation of the stenotic VUJ.

Conclusions:

  • VUJ endo-ureterotomy using a cutting balloon is presented as a viable first-line treatment.
  • This minimally invasive approach offers a promising alternative for primary obstructive megaureter.