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Related Experiment Video

Updated: Jun 8, 2026

Transmesenteric Laparoscopic Pyeloplasty in Trendelenburg Position for Horseshoe Kidney with Hydronephrosis
03:57

Transmesenteric Laparoscopic Pyeloplasty in Trendelenburg Position for Horseshoe Kidney with Hydronephrosis

Published on: July 8, 2025

Transperitoneal laparoendoscopic single-site pyeloplasty: initial experiences.

Volkan Tugcu1, Erkan Sönmezay, Yusuf Ozlem Ilbey

  • 1Department of Urology, Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey. volkantugcu@yahoo.com

Journal of Endourology
|October 9, 2010
PubMed
Summary

Laparoendoscopic single-site surgery (LESS) for ureteropelvic junction (UPJ) obstruction demonstrated a 100% success rate. This minimally invasive approach offers a promising alternative to standard laparoscopic pyeloplasty for UPJ obstruction management.

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Area of Science:

  • Urology
  • Minimally Invasive Surgery
  • Surgical Technology

Background:

  • Ureteropelvic junction (UPJ) obstruction is a common cause of pediatric hydronephrosis.
  • Traditional open or laparoscopic pyeloplasty are effective but associated with larger incisions and longer recovery times.
  • Laparoendoscopic single-site surgery (LESS) offers a potential for reduced morbidity and improved cosmesis.

Purpose of the Study:

  • To evaluate the initial clinical outcomes and feasibility of LESS for treating UPJ obstruction.
  • To assess the safety and efficacy of LESS-pyeloplasty (LESS-P) in a consecutive patient cohort.

Main Methods:

  • A prospective study of 14 patients undergoing LESS-pyeloplasty for UPJ obstruction between May and October 2009.
  • Transumbilical single-port transperitoneal Anderson-Hynes pyeloplasty was performed by a single surgeon.

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Last Updated: Jun 8, 2026

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  • Postoperative assessment included imaging (ultrasonography, IVU, or diuretic renal scan) and clinical follow-up for up to 8 months.

    • Main Results:

    • The mean operative time was 204.5 minutes with an average blood loss of 102 mL.
    • Mean hospital stay was 2 days, with one case of wound infection.
    • A 100% success rate was achieved, defined by improved hydronephrosis and UPJ patency on imaging.

    Conclusions:

    • LESS-pyeloplasty is a safe and effective minimally invasive option for UPJ obstruction.
    • Advancements in single-port technology make LESS-P a viable alternative to standard laparoscopic pyeloplasty.
    • LESS-P represents a new surgical choice for managing UPJ obstruction.