MP32-16: Comparison of Perioperative Outcomes of Single-Port da Vinci SP and Multiport da Vinci Xi Robotic Systems in Robotic-Assisted Urologic Surgeries

Christopher Dennis*, Luca Morgantini, Marcin Zuberek, Simone Francavilla, Ryan Trippel, Simone Crivellaro, Chicago, IL

Introduction: Our goal is to evaluate and compare perioperative outcomes of the novel single-port approach assisted
by the da Vinci SP (SP) to the multiport approach assisted by the da Vinci Xi (MP) in multiple categories
of minimally invasive urologic surgeries.

Methods: Perioperative outcomes for 226 MP cases (132 radical prostatectomies, 60 nephrectomies, and 34
reconstructive surgeries) were compared to 170 SP cases (89 radical prostatectomies, 60
nephrectomies, and 21 reconstructive surgeries). An overall analysis was completed by comparing all
available SP cases with a subset of the MP cases that maintained the same number and proportion of
the three surgical categories. Eventually each subgroup of procedures has been compared as well. A Z-
score test of two populations and associated p-score was calculated to compare rate data while all other outcomes were analyzed using an unpaired t-test.

Results: The overall analysis yielded reductions in postoperative complications (p = 0.001), POD 0 pain scores (p
= 0.03), and postoperative hospitalization stays (p  < 0.0001) with the SP approach. SP radical
prostatectomy cases demonstrated a lower POD 0 pain score (p = 0.004) than MP radical prostatectomy
cases and required fewer postoperative hospitalization days (p  < 0.0001) despite an older patient
population (p = 0.01). SP nephrectomy cases resulted in a lower postoperative complication rate (p =
0.001) and required fewer postoperative hospitalization days (p = 0.005) than MP nephrectomy
counterparts. SP reconstructive cases exhibited a lower mean estimated blood loss (p = 0.04) and a
significantly lower postoperative complication rate (p = 0.0005) than MP reconstructive surgery
counterparts.

Conclusions: In this study, the single-port approach assisted by the da Vinci SP yielded benefits across all studied
categories of urologic surgery including the overall analysis. Postoperative complication rates and
postoperative hospitalization lengths consistently improved after adoption of the da Vinci SP as
evidenced by significant results in multiple surgical categories. Estimated blood loss and POD 0 pain
scores exhibited single-port advantages within a single surgical category.

Source of Funding: NA