Is robotic better than laparoscopic approach for right colectomy? A cohort study from two Tuscany centers.

Robotic surgery is becoming more and more frequent. In colon surgery it can be used safely with similar results to laparoscopic surgery. The objective of our work is to retrospectively compare the short-term results (30 days) of robotic and laparoscopic right hemicolectomy. It will be helpful to understand if there are any advantages of robotic over laparoscopic surgery. METHODS: Data of miniinvasive (laparoscopic and robotic) right colectomy procedures performed from January 1, 2013 to December 31, 2019 in two Tuscany hospitals were retrospectively collected and analyzed. The mean hospital stay, complication rate, flatus pass, operative time, conversion rate and the number of removed lymph nodes, between the two methods have been compared. RESULTS: The total number of the patients that underwent right miniinvasive colectomy was 211. Sixteen patients were excluded from the study. Of the 195 included patients, 143 were operated with the robotic approach, and 52 with the laparoscopic one. There was no significant difference between the mean hospital stay (7 days in both), canalization to gas (4 days in both), anastomotic dehiscence (2 in robotic and 1 in laparoscopy), and Clavien Dindo 3 - 5 grade complications. The operation time (215 vs 175 min) and the number of retrieved lymph nodes (19 vs 15) were significantly greater in the robotic approach. CONCLUSION: The robotic approach may be advantageous in terms of surgical radicality with the price of a greater operative time. KEY WORDS: Laparoscopic, Right colectomy, Robotic.