Abstract:Abstract: Objective To compare the effect of laparoscopic radical gastrectomy and traditional radical gastrectomy for lymph node dissection in patients with primary gastric cancer, and provide a reference for the choice of radical surgery for the patients with gastric cancer. Methods 126 patients who underwent radical gastrectomy for gastric cancer from May 2012 to December 2017 were selected as the study subjects. According to the different surgical methods, the patients were divided into observation group and control group. Among them, 65 cases in the observation group were treated with laparoscopic radical surgery, and 61 cases in the control group were treated with open radical operation. The two groups were compared with the lymph node dissection, the length of the incision, the amount of blood loss, the time of operation, the time of hospitalization after operation, the time after the operation, the time of discharge from the bed, the time of exhaust, the postoperative complications and the recurrence rate of the tumor. Results There was no significant difference in the total number of lymph nodes between the observation group and the control group on the total number of lymph nodes (t = -0.89, P = 0.373), and There was no statistically significant difference between the first and two stations (t = -0.23, -1.71, P = 0.815, 0.089). The length of the incision, the amount of blood loss, the time of hospitalization, the time of postoperative hospital stay, the time and the exhaust time were all smaller than those of the control group (P < 0.05), and the operation time of the patients in the observation group was longer than that of the control group, the difference was statistically significant (P < 0.05). The complication rate of the observation group was 6.2%, including 1 cases of incision infection, 1 cases of pleural effusion, and 2 cases of pulmonary infection. The incidence of complications in the control group was 9.8%, including incision infection in 2 cases, pleural effusion in 1 case, abdominal bleeding in 1 cases, and pulmonary infection in 2 cases. There was no significant difference between the two groups (χ2 = 0.58, P = 0.445). Conclusion Laparoscopic radical gastrectomy can achieve the same effect of lymph node dissection as open surgery, and it has the advantages of small trauma and quick recovery. It can be used for the treatment of primary gastric cancer.