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Laparoscopic partial nephrectomy in the pig model

E M McDougall1, R V Clayman, P S Chandhoke

  • 1Department of Surgery (Division of Urology), Washington University School of Medicine, St. Louis, Missouri 63141.

The Journal of Urology
|June 1, 1993
PubMed
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Laparoscopic partial nephrectomy (LPN) is a feasible surgical approach in pigs. This minimally invasive technique demonstrated excellent renal remnant function and no signs of renovascular hypertension.

Area of Science:

  • Urologic Surgery
  • Minimally Invasive Procedures
  • Surgical Innovation

Background:

  • The application of laparoscopy in urologic surgery is expanding.
  • Partial nephrectomy is a common urologic procedure.

Purpose of the Study:

  • To evaluate the feasibility of laparoscopic partial nephrectomy (LPN).
  • To assess the functional and histological outcomes of LPN in a porcine model.

Main Methods:

  • Nine female pigs underwent LPN.
  • Renal ischemia was induced using a plastic cable tie.
  • The transected surface was managed with an Argon Beam Coagulator (ABC).
  • Post-procedure assessment included creatinine clearance, renin levels, arteriography, and histological examination.

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Main Results:

  • The renal remnant exhibited excellent function.
  • No arteriovenous fistulas were detected.
  • No evidence of renovascular hypertension was observed.
  • LPN was found to be a repeatable procedure in pigs.

Conclusions:

  • Laparoscopic partial nephrectomy is a feasible and repeatable procedure.
  • Key elements for success include control of the renal hilum, transient parenchymal compression, and use of the argon beam coagulator.