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Updated: May 1, 2026

03:57
Transmesenteric Laparoscopic Pyeloplasty in Trendelenburg Position for Horseshoe Kidney with Hydronephrosis
Published on: July 8, 2025
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Laparoendoscopic single-site versus conventional laparoscopic pyeloplasty: a matched pair analysis
Yasuyuki Naitoh1, Akihiro Kawauchi, Yasuhiro Yamada
1Department of Urology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.
Summary
Laparoendoscopic single-site pyeloplasty offers better cosmetic results and less pain compared to conventional laparoscopic surgery. This minimally invasive approach is effective for both pediatric and adult patients.
Area of Science:
- Urology
- Minimally Invasive Surgery
- Pediatric Surgery
Background:
- Pyeloplasty is a surgical procedure to correct a blockage in the renal pelvis.
- Conventional laparoscopic pyeloplasty offers advantages over open surgery.
- Laparoendoscopic single-site surgery (LESS) aims to further minimize invasiveness.
Purpose of the Study:
- To compare the outcomes of laparoendoscopic single-site pyeloplasty (LSSP) with conventional laparoscopic pyeloplasty (CLP).
- To evaluate the efficacy and safety of LSSP in pediatric and adult patients.
Main Methods:
- A retrospective comparison of 26 LSSP cases with 26 age-matched CLP cases.
- Procedures were performed between 2008 and 2013 at a single institution.
- Outcomes including operative time, blood loss, and complications were analyzed.
Main Results:
- No significant difference in operative time was observed between LSSP and CLP groups for both pediatric and adult patients.
- Blood loss was minimal, and no intraoperative or postoperative complications occurred in the LSSP group.
- The mean age of patients was 20.4 years (range 1-56 years).
Conclusions:
- LSSP is a viable alternative to CLP for both pediatric and adult patients.
- LSSP offers superior cosmetic outcomes and reduced postoperative pain compared to CLP.
- Further large-scale, randomized studies are needed to confirm these findings and establish the role of LSSP.

