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Related Experiment Video

Updated: Jun 8, 2026

Transmesenteric Laparoscopic Pyeloplasty in Trendelenburg Position for Horseshoe Kidney with Hydronephrosis

Transmesenteric Laparoscopic Pyeloplasty in Trendelenburg Position for Horseshoe Kidney with Hydronephrosis

Published on: July 8, 2025

Endoscopic stented ureterocystostomy.

Luiz E Slongo¹, Rogerio de Fraga, Anuar I Mitre

¹Department of Urology, Parana Federal University, Curitiba, Brazil.

Journal of Endourology

|September 23, 2010

Summary

This summary is machine-generated.

This study introduces a novel endourologic technique for internal urinary tract drainage, successfully bypassing ureteral obstructions with a Double-J catheter in six patients and avoiding nephrostomy.

Related Experiment Videos

Last Updated: Jun 8, 2026

Transmesenteric Laparoscopic Pyeloplasty in Trendelenburg Position for Horseshoe Kidney with Hydronephrosis

Transmesenteric Laparoscopic Pyeloplasty in Trendelenburg Position for Horseshoe Kidney with Hydronephrosis

Published on: July 8, 2025

Area of Science:

Urology
Endourology
Nephrology

Background:

Ureteral obstruction at the ureterovesical junction often requires invasive procedures.
Percutaneous nephrostomy is a common but invasive approach for managing such obstructions.
Minimally invasive alternatives are sought to improve patient outcomes.

Purpose of the Study:

To present a pure endourologic technique for internal urinary tract drainage.
To demonstrate the feasibility of using a Double-J catheter in cases of terminal ureter obstruction.
To offer an alternative to percutaneous nephrostomy.

Main Methods:

A novel endourologic technique was employed in six patients with obstructed upper urinary tracts.
Iodine contrast was introduced, followed by ureteral puncture and guidewire insertion under cystoscopic and fluoroscopic guidance.
The created path was dilated to 10F for Double-J catheter placement.

Main Results:

Successful internal urinary tract drainage was achieved in all six patients using a Double-J catheter.
The catheter was placed above the level of the ureteral obstruction.
No complications were reported during or after the procedure.

Conclusions:

A pure endourologic approach can effectively achieve internal urinary tract drainage in cases of ureteral obstruction.
This technique successfully avoids the need for percutaneous nephrostomy.
The described method offers a minimally invasive solution for managing complex ureteral obstructions.