Intracorporeal Anastomosis and ERAS Program: The Winning Combination of Optimized Postoperative Outcomes After Laparoscopic Right Colectomy

Background: Laparoscopic technique and the enhanced recovery after surgery (ERAS) protocol have become the standard of care in patients undergoing right colon cancer surgery, reducing hospital stay and postoperative morbidity. However, the optimal anastomosis technique [intracorporeal anastomosis (ICA) or extracorporeal anastomosis (ECA)] remains debated. This study aimed to determine the optimal perioperative approach (ICA vs. ECA combined with the ERAS program vs. standard care) for patients undergoing laparoscopic right colectomy for cancer.Materials and Methods: This single-center, retrospective study evaluated all consecutive patients who underwent laparoscopic right hemicolectomy for cancer between January 2012 and June 2021. Patient data were analyzed in 4 treatment groups according to the type of anastomosis and the care protocol. The primary endpoint was total postoperative hospital stay (THS). The secondary endpoints were recovery time and overall morbidity rate.Results: The baseline characteristics of the 373 included patients were comparable between the 4 groups. THS was significantly shorter in the ICA/ERAS group than in the ECA/standard and ICA/standard groups (P<0.01), but there was no significant difference between the ICA/ERAS and ECA/ERAS groups (5.7 vs. 6.4 d; P=0.17). Recovery time was significantly shorter in the ICA/ERAS group (P<0.01). The overall morbidity rate, including anastomotic morbidity, was comparable among the 4 groups. Regression analysis showed that ICA and the ERAS program were both predictive factors to reduce the THS and recovery time.Conclusions: ICA combined with the ERAS program achieves the best outcomes and thus seems to be the optimal approach for the management of patients undergoing laparoscopic right colectomy for cancer.