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Related Concept Videos

Urinary Tract Calculi VI: Surgical Management01:25

Urinary Tract Calculi VI: Surgical Management

Procedures for Kidney StonesMedical intervention is necessary when kidney stones or renal calculi are too large to pass spontaneously (typically greater than 5 millimeters) when stones are accompanied by symptomatic infection (such as fever or pyelonephritis), when they impair kidney function, or when they cause persistent symptoms like severe pain, nausea, or urinary retention. Additionally, patients with only one kidney or those who cannot be treated with medical management also require...

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Related Experiment Video

Updated: Jul 13, 2026

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

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Published on: July 8, 2025

Minimum incision endoscopic nephrectomy for giant hydronephrosis.

Fumitaka Koga1, Kazunori Kihara, Hitoshi Masuda

  • 1Department of Urology, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan. f-koga.uro@tmd.ac.jp

International Journal of Urology : Official Journal of the Japanese Urological Association
|August 8, 2007
PubMed
Summary

Minimum incision endoscopic nephrectomy offers a safe and effective approach for symptomatic giant hydronephrosis. This minimally invasive technique allows for specimen extraction through a small incision with rapid patient recovery.

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Published on: November 22, 2019

Area of Science:

  • Urology
  • Minimally Invasive Surgery
  • Nephrology

Background:

  • Giant hydronephrosis presents significant surgical challenges.
  • Traditional nephrectomy can involve extensive incisions and longer recovery times.
  • Minimally invasive approaches are sought to reduce patient morbidity.

Purpose of the Study:

  • To evaluate the feasibility and safety of minimum incision endoscopic nephrectomy for symptomatic giant hydronephrosis.
  • To assess the surgical outcomes and postoperative recovery associated with this technique.

Main Methods:

  • A consecutive series of five patients with symptomatic giant hydronephrosis underwent the procedure.
  • The renal specimen was mobilized retroperitoneally using endoscopy and direct vision.
  • A single minimum incision, without trocar ports or gas insufflation, was used for specimen extraction.

Main Results:

  • The technique was successful in all five patients, with specimen extraction achieved through the small incision.
  • Median incision size was 4 cm, with a median operative time of 205 minutes and median blood loss of 210 mL.
  • No patients required blood transfusion or experienced operative complications; recovery was rapid with early oral intake and discharge.

Conclusions:

  • Minimum incision endoscopic nephrectomy is a feasible, minimally invasive, and safe procedure for managing symptomatic giant hydronephrosis.
  • The technique facilitates specimen extraction and leads to short, uneventful postoperative convalescence.
  • This approach represents a valuable alternative to traditional open surgery for this condition.