LAUSR

Purpose Single-port (SP) robotic surgery is a new technology and early in its adoption curve. The goal of this study is to compare the perioperative outcomes of single port (SP) to multi-port (MP) robotic technology for partial nephrectomy. Materials and Methods This is a prospective cohort study of patients who have undergone robot-assisted partial nephrectomy using SP and MP technology. Baseline demographic, clinical, and tumor-specific characteristics and perioperative outcomes were compared using χ 2, T-test and Mann-Whitney U test in the overall cohort and in a 1:1 propensity score-matched cohort, adjusting for baseline characteristics. Results After propensity matching, 146 SP patients were matched with 146 MP patients. Single port and multiport groups had similar mean age (58 ± 12 years vs. 59 ± 12 years; p =0.606) and proportion of males (54.11% vs. 52.05%; p=0.725). The SP had a longer mean ischemia (18.29 ± 10.49mins vs. 13.79 ± 6.29mins; p <0.001). Estimated blood loss and Length of stay, operative time, positive margin rate and any complication rate were similar between the two groups. Conclusions SP partial nephrectomy had a longer ischemia time, and a comparable LOS, EBL, operative time, positive margin rates and complication rates to multi-port. This early data is encouraging. However, the role of SP requires further study and should evaluate safety and long-term data when compared to the standard multi-port technique.