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Laparoendoscopic single-site (LESS) partial nephrectomy short-term outcomes.

Soroush Rais-Bahrami1, Arvin K George, Sylvia Montag

  • 1The Arthur Smith Institute for Urology, Hofstra North Shore-LIJ School of Medicine, New Hyde Park, NY, USA. soroushraisbahrami@gmail.com

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Summary
This summary is machine-generated.

Transumbilical laparoendoscopic single-site partial nephrectomy (LESS-PN) is a feasible and effective procedure for cT1a tumors. This study demonstrates excellent short-term oncological and renal functional outcomes with LESS-PN.

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Area of Science:

  • Urology
  • Minimally Invasive Surgery
  • Oncology

Background:

  • Partial nephrectomy (PN) is the standard treatment for small renal masses.
  • Laparoendoscopic single-site (LESS) surgery offers potential cosmetic and recovery benefits over conventional laparoscopy.
  • Transumbilical LESS-PN aims to further minimize surgical invasiveness.

Purpose of the Study:

  • To evaluate the feasibility and outcomes of transumbilical laparoendoscopic single-site partial nephrectomy (LESS-PN).
  • To assess short-term oncological and renal functional results of LESS-PN.
  • To present pathological findings of tumors treated with LESS-PN.

Main Methods:

  • Fifteen transumbilical LESS-PNs were performed for cT1a renal tumors between 2008 and 2011.
  • A 5-mm flexible-tip laparoscope and specialized instruments were used via a transumbilical incision.
  • Standard laparoscopic PN techniques were adapted for the LESS approach.

Main Results:

  • All 15 LESS-PNs achieved complete oncological resection with negative margins for cT1a tumors.
  • Mean operative time was 169 minutes with a mean warm ischemia time of 14.7 minutes.
  • Short-term follow-up showed no recurrence and negligible impact on renal function (serum creatinine change <0.1 mg/dL).

Conclusions:

  • Transumbilical LESS-PN is a feasible and effective surgical option for cT1a renal tumors.
  • The procedure provides excellent short-term oncological control.
  • Renal functional outcomes are well-preserved following LESS-PN.