ABSTRACT
Objective To investigate the influence of laparoscopic radical gastrectomy for gastric cancer or colon cancer on immune indices and micrometastasis.Methods According to the treatment method,80 cases of gastric cancer or colon cancer in the Second Hospital of Shanxi Medical University from May 2016 to May 2017 were divided into observation group and control group,with 40 cases in each group.The observation group was treated with laparoscopic radical gastrectomy for gastric cancer or colon cancer,and the control group was treated with open stomach cancer or colon cancer radical operation.The changes of immune indicators of peripheral blood and micrometastasis of peritoneal lavage fluid were compared between the two groups.Results Compared with the preoperative immune indicators in peripheral blood of the two groups of IgG [(8.1 ±2.6)g/L],IgA[(1.6 ±0.9)g/L],IgM[(0.8 ± 0.2)g/L],C3[(0.7 ±0.3)g/L]and C4[(0.2 ±0.1)g/L]levels were decreased at first and then increased,and at 7d after operation,the levels[(10.5 ±2.3)g/L,(2.4 ±0.5)g/L,(1.3 ±0.6)g/L,(1.2 ±0.4)g/L,(0.5 ± 0.2)g/L]were closed to the preoperative levels.The level of IL-10[(98.8 ±32.4)g/L]increased obviously first,and then gradually decreased.The differences of C3 and IL-10 in the two groups were statistically significant at different time points,between the two groups and between different points(F=3.6786,5.769,4.668,4.625,9.375,5.354,all P<0.05).The other indicators were only statistically different among different time points(F=3.578,4.137,3.966,all P <0.05).At the end of the surgery,the CEA and DDC of the two groups were significantly increased,and the CEA[(1165.2 ±386.5)ng/L vs.(1788.6 ±725.5)ng/L]and DDC[(102.5 ±36.5)ng/L vs.(150.5 ±57.2)ng/L] levels and added value in the observation group were significantly lower than those in the control group,the differences were statistically significant(t=6.543,5.669,5.712,4.935,all P<0.05).Conclusion Laparoscopic radical gastrectomy for gastric cancer or colon cancer can improve the immune indices of the patients and reduce the index of micrometastasis in the peritoneal lavage fluid.