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"Zero ischemia" partial nephrectomy: novel laparoscopic and robotic technique.

Inderbir S Gill1, Manuel S Eisenberg, Monish Aron

  • 1Center for Advanced Robotic & Laparoscopic Surgery, USC Institute of Urology, Division of Nephrology and Department of Anesthesiology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA. gillindy@gmail.com

European Urology
|October 26, 2010
PubMed
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This study introduces a new "zero ischemia" technique for laparoscopic (LPN) and robotic-assisted partial nephrectomy (RAPN), successfully preserving kidney function in patients with complex renal tumors.

Area of Science:

  • Urology
  • Surgical Innovation
  • Renal Oncology

Background:

  • Ischemic injury significantly affects kidney function after partial nephrectomy.
  • Minimizing or eliminating renal ischemia during surgery is crucial for preserving renal outcomes.

Purpose of the Study:

  • To describe a novel "zero ischemia" technique for both laparoscopic partial nephrectomy (LPN) and robotic-assisted partial nephrectomy (RAPN).

Main Methods:

  • Prospective data collection from 15 patients undergoing "zero ischemia" LPN (n=12) or RAPN (n=3).
  • Inclusion of diverse patient cases, including complex tumors, solitary kidneys, and chronic kidney disease.
  • Advanced anesthesia monitoring and pharmacologically induced hypotension timed with tumor excision, followed by reconstruction under normotension.

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Main Results:

  • All procedures were completed successfully with zero ischemia time and no hilar clamping.
  • Median tumor size was 2.5 cm; median operative time was 3 hours; median blood loss was 150 ml.
  • No intraoperative transfusions or complications; comparable pre- and postoperative serum creatinine and eGFR, indicating preserved renal function.

Conclusions:

  • The novel "zero ischemia" technique for LPN and RAPN is feasible and effective for substantial renal tumors.
  • Initial outcomes are encouraging, demonstrating preserved renal function and oncologic safety.