MedTrace Logo

One Trocar-assisted Retroperitoneoscopic Ureteroureterostomy for Ureteral Duplication

NCT06350942 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 40

Last updated 2024-04-08

No results posted yet for this study

Summary

Ureteral duplication, a common anomaly affecting about 0.8% of the population, presents challenges in pediatric urology due to its diverse clinical presentations and anatomical complexity. Traditional treatments like upper pole moiety (UPM) heminephrectomy can lead to loss of renal function in the remaining lower pole moiety (LPM). Ureteroureterostomy (UU) is a safer alternative, increasingly preferred regardless of renal function or reflux presence. Minimally invasive techniques like laparoscopic and robotic procedures show promise, but robotic-assisted UU is costly, while laparoscopic UU has technical challenges. A novel approach is proposed: single-trocar retroperitoneoscopic-assisted UU, combining laparoscopic visualization advantages with simplified extracorporeal suturing, offering a promising solution for managing complete ureteral duplication. The present study was designed to describe the operative technique and outcome of OTAU in 40 cases of complete ureteral duplication in children.

Conditions

  • Ureteral Duplication

Interventions

PROCEDURE

one trocar-assisted retroperitoneoscopic ureteroureterostomy (OTAU)

A 12 mm transverse incision was made just above the iliac crest, followed by careful dissection of the fascia and muscle layer to expose the Gerota's fascia. Entry into the retroperitoneal space was achieved with a 10-mm balloon trocar, allowing for pneumoretroperitoneum establishment. Using a 10-mm laparoscope equipped with a Maryland dissector, the ureters were dissected and isolated, followed by careful exteriorization of both upper and lower pole moiety ureters with a Babcock grasper. The pathological upper pole moiety ureter was transected, preserving the normal lower pole moiety ureter and shared blood supply, and closed with a Vicryl 4/0 suture. Subsequently, an end-to-side ureteroureterostomy was performed with a 6/0 Polydioxanone running suture, with antegrade insertion of a double J stent if not previously conducted. A final retroperitoneoscopic evaluation ensured proper anastomosis alignment, and the incision was closed without drainage.

Sponsors & Collaborators

  • Vinmec Research Institute of Stem Cell and Gene Technology

    collaborator OTHER

  • National Children's Hospital, Vietnam

    lead OTHER

Principal Investigators

  • Quang T Nguyen, M.D. · : Department of Pediatric Surgery, The National Hospital of Pediatrics, Hanoi, Vietnam

Eligibility

Min Age
1 Month
Max Age
10 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2016-09-30
Primary Completion
2020-12-31
Completion
2024-02-29

Countries

  • Vietnam

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06350942 on ClinicalTrials.gov