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Single Institution Experience with Robot-Assisted Laparoendoscopic Single-Site Renal Procedures      7/13/2013


Rakesh Khanna, Robert J. Stein, Michael A. White, Wahib Isac, Humberto Laydner, Riccardo Autorino, Shahab Hillyer, Gregory Spana, Gaurang Shah, Georges-Pascal Haber, and Jihad Kaouk. Journal of Endourology. March 2012, 26(3): 230-234.

The desire to decrease morbidity from multiple port sites and progress toward a natural orifice approach has stimulated interest in laparoendoscopic single-site (LESS) surgery. Limitations, however, including clashing of instruments and loss of triangulation, have prevented widespread dissemination of LESS. To overcome these problems, the advantages of the robotic platform have been applied to single-site surgery. The objective of this article is to review our experience and summarize the current literature pertaining to robot-assisted LESS renal surgery.

Patients and Methods: Twenty-eight robot-assisted LESS kidney procedures were identified from our prospectively maintained LESS database. These included 11 radical nephrectomies, 5 partial nephrectomies, 3 nephroureterectomies, 7 pyeloplasties, 1 simple nephrectomy, and 1 renal cyst decortication. Perioperative and postoperative data were analyzed.
Results: Of 28 cases, 4 conversions occurred. The remaining procedures were performed with no extraincisional trocars. Mean follow-up was 11.3 months for radical nephrectomy, 21.3 months for partial nephrectomy, 17.8 months for nephroureterectomy, 12.9 months for pyeloplasty, 4 months for simple nephrectomy, and 1.6 months for renal cyst decortication. Patients who underwent radical nephrectomy, partial nephrectomy, and nephroureterectomy all had negative surgical margins and have remained disease free during the follow-up period. Six of seven patients who underwent pyeloplasty reported complete resolution of symptoms while the seventh reports significant improvement.
Conclusion: We present a large experience with robot-assisted LESS kidney surgery demonstrating the wide variety of procedures that can be performed. Further follow-up of this patient population is needed to document continued oncologic efficacy and durability of results.
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