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Robot-assisted partial nephrectomy: off-clamp technique.

Gurdarshan S Sandhu1, Eric H Kim, Youssef S Tanagho

  • 1Division of Urologic Surgery, Washington University School of Medicine , St. Louis, Missouri 63110, USA.

Journal of Endourology
|September 11, 2012
PubMed
Summary
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Robot-assisted partial nephrectomy (RAPN) using an off-clamp technique eliminates warm ischemia time (WIT) in patients with small renal tumors. This safe and feasible method demonstrates excellent outcomes with no intraoperative complications or positive surgical margins.

Area of Science:

  • Urology
  • Surgical Oncology
  • Robotic Surgery

Background:

  • Robot-assisted partial nephrectomy (RAPN) is a recognized alternative for small renal tumors.
  • Minimizing warm ischemia time (WIT) is crucial in partial nephrectomy.
  • Various techniques aim to reduce WIT during RAPN.

Purpose of the Study:

  • To present and evaluate an off-clamp surgical technique for RAPN.
  • To assess the safety, feasibility, and outcomes of the off-clamp RAPN method.
  • To determine the impact of the off-clamp technique on WIT.

Main Methods:

  • Retrospective analysis of 39 patients undergoing off-clamp RAPN for 47 renal tumors.
  • Data collection included operative time, estimated blood loss, and length of stay.

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  • Intraoperative complications and surgical margin status were recorded.

    • Main Results:

    • Warm ischemia time (WIT) was 0 minutes in all cases.
    • Mean operative time was 147 minutes; mean estimated blood loss was 219 mL.
    • No intraoperative complications occurred, and all surgical margins were negative.

    Conclusions:

    • The off-clamp RAPN technique is safe and feasible in experienced hands.
    • This method effectively eliminates WIT during robot-assisted partial nephrectomy.
    • Off-clamp RAPN offers a viable approach for treating small renal tumors.