To investigate the application effects of different anastomosis methods in laparoscopic right hemicolectomy for colon cancer, and to analyze the prognosis.

A retrospective analysis was conducted on the medical records of 140 patients who underwent laparoscopic right hemicolectomy for colon cancer at Qingdao Central Hospital, University of Health and Rehabilitation Sciences from January 2020 to January 2022. According to different anastomosis methods, patients were divided into Overlap anastomosis group (n=70) and π anastomosis group (n=70). The operation status, postoperative recovery, postoperative complications, disease-free survival rate and cancer-free survival rate were compared between the two groups.

There was no difference in surgical duration and intraoperative blood loss between the two groups (P<0.05). The first anal exhaust, defecation, feeding, and hospitalization time in the Overlap anastomosis group were shorter than those in the π anastomosis group (P<0.05). During hospitalization, the incidence of postoperative intestinal obstruction in Overlap anastomosis group was lower than that in π anastomosis group (P<0.05). The 3-year disease-free and cancer-free survival rates in Overlap anastomosis group were higher than those in π anastomosis group (P<0.05).

After laparoscopic right hemicolectomy, the Overlap anastomosis technique can accelerate postoperative gastrointestinal recovery, reduce the incidence of postoperative intestinal obstruction, and improve long-term survival rates.