Robot-Assisted Radical Nephrectomy Using the Novel Avatera Robotic Surgical System: A Feasibility Study in a Porcine Model.

Journal: Journal of endourology
Published Date: Dec 1, 2022

Abstract

To evaluate the feasibility and intraoperative technical parameters of the new robot-assisted surgical system Avatera by performing bilateral nephrectomy in a live porcine model. Six pigs underwent bilateral robot-assisted radical nephrectomy using the Avatera robotic system (RS). The operations were performed by experienced open (Group 1) and laparoscopic (Group 2) surgeons. The operating time, docking time, set-up time, and console time were evaluated. Data regarding intraoperative complications (major or not), injury of adjacent organs, and technical difficulties during the operation were also recorded. Robot-assisted bilateral nephrectomy was completed effectively in all sample pigs. The docking time and set-up time were similar among the two groups, whereas the console time and operating time were significantly longer for the open surgeon group. Two intraoperative minor complications occurred in the open surgeon's group. An inadvertent damage of the renal vein occurred in two cases and the bleeding was controlled effectively. Other than the initial two cases, the estimated blood loss was <50 mL in both groups. Injury of the adjacent organs was not noticed. The study demonstrated that radical nephrectomy using the Avatera robotic surgical system is technically feasible, safe, and valid in pigs. Our results warrant the application of the Avatera RS in other urologic procedures, collecting data for further clinical trials.

Authors

  • Kristiana Gkeka
    Department of Urology, University Hospital of Patras, University of Patras Medical School, Rio, 26500, Patras, Greece.
  • Arman Tsaturyan
    Department of Urology, University Hospital of Patras, University of Patras Medical School, Rio, 26500, Patras, Greece.
  • Solon Faitatziadis
    Department of Urology, University Hospital of Patras, University of Patras Medical School, Rio, 26500, Patras, Greece.
  • Angelis Peteinaris
    Department of Urology, University Hospital of Patras, University of Patras Medical School, Rio, 26500, Patras, Greece.
  • Eirini Anaplioti
    Department of Urology, University Hospital of Patras, University of Patras Medical School, Rio, 26500, Patras, Greece.
  • Konstantinos Pagonis
    Department of Urology, University Hospital of Patras, University of Patras Medical School, Rio, 26500, Patras, Greece.
  • Athanasios Vagionis
    Department of Urology, University Hospital of Patras, University of Patras Medical School, Rio, 26500, Patras, Greece.
  • Vasileios Tatanis
    Department of Urology, University Hospital of Patras, University of Patras Medical School, Rio, 26500, Patras, Greece.
  • Theofanis Vrettos
    Department of Anesthesiology and ICU, University Hospital of Patras, Patras, Greece.
  • Panagiotis Kallidonis
    Department of Urology, University of Patras, Patras, Greece.
  • Evangelos Liatsikos
    Department of Urology, University of Patras, Patras, Greece. Electronic address: liatsikos@yahoo.com.

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