Percutaneous endopyelotomy and results: Korth technique

Area of Science:

• Urology
• Minimally Invasive Surgery

Background:

• Endoscopic incision is a key treatment for ureteral strictures.
• Long-term success rates typically range from 72% to 89%.

Purpose of the Study:

• To evaluate the efficacy of different stenting durations for endoscopic ureteral stricture treatment.
• To compare outcomes of 3-week stenting versus 6-month stenting with a novel stent.

Main Methods:

• Prospective trial involving 53 patients with ureteral strictures.
• Comparison of cold-knife incision with 3-week stenting versus a novel 6-month indwelling stent.
• Assessment of recurrence rates and long-term outcomes.

Main Results:

• 3-week stenting was sufficient for lower-grade hydronephrosis.
• A novel 6-month stent showed less favorable overall results.
• Recurrences occurred in 12% of cases, with 90% successfully retreated endoscopically.
• Most recurrences appeared within 6 months post-stent removal.

Conclusions:

• 3-week stenting is adequate for select ureteral strictures.
• Novel long-term stenting may not improve outcomes and could be less favorable.
• Endoscopic retreatment is effective for most recurrences.