Redo Laparoscopic Pyeloplasty in Children: Results from a Multicentric Series

Area of Science:

• Pediatric Surgery
• Urology
• Minimally Invasive Surgery

Background:

• Ureteropelvic junction (UPJ) obstruction is a common congenital anomaly.
• Restenosis after primary pyeloplasty necessitates re-intervention.
• Laparoscopic techniques are increasingly adopted for reconstructive urological procedures.

Purpose of the Study:

• To evaluate the safety and efficacy of redo laparoscopic pyeloplasty (RLP) in pediatric patients with UPJ restenosis.
• To assess postoperative complications and surgical failure rates associated with RLP.
• To determine if RLP offers comparable outcomes to primary pyeloplasty.

Main Methods:

• Retrospective analysis of 19 pediatric patients who underwent transperitoneal RLP.
• Patients had prior Anderson-Hynes dismembered pyeloplasty.
• Data collected from five international training centers between 2009 and 2017.

Main Results:

• RLP was performed in 19 patients out of 744 primary pyeloplasties.
• No conversions to open surgery were required; median operative time was 150 minutes.
• A 100% success rate was achieved with a median follow-up of 17 months.
• Significant reduction in renal pelvis anteroposterior diameter (APD) from 43 mm to 17 mm.
• Only one temporary complication (UPJ stenosis) managed conservatively.

Conclusions:

• Redo laparoscopic pyeloplasty (RLP) is a feasible and safe option for managing UPJ restenosis in children.
• RLP achieves high success rates comparable to primary pyeloplasty.
• The procedure demonstrates a favorable safety profile across diverse healthcare settings.