Effect of laparoscopic radical resection of rectal cancer by preserving the four-step left colic artery preservation
Objective To analyze the effect of four-step left colic artery(LCA)preservation in laparoscopic radical resection of rectal cancer.Methods A total of 102 patients undergoing laparoscopic radical resection of rectal cancer who were treated in Shanghai Jiao Tong University School of Medicine Suzhou Kowloon Hospital,from May 2020 to May 2022 were selected as the study objects,and they were divided into observation group and control group according to random number table method,with 51 cases in each group.The observation group was operated on the basis of preserving LCA by"four-step method",while the control group was operated on the basis of not retaining LCA.The operation and lymph node dissection,levels of tumor markers before and after operation,incidence of complications,and 1-year follow-up were compared between the two groups.Results There was no significant difference in operation time,intraoperative blood loss,postoperative exhaust time,bowel sound recovery time,hospital stay,total number of lymph node dissection,and number of NO.253 lymph node dissection between the two groups(P>0.05).After surgery,the level of tumor markers in the two groups was lower than those before surgery(P<0.05),and there was no statistical significance in the level of tumor markers between the two groups(P>0.05).The total complication rate of observation group was lower than that of control group(P<0.05).There was no significant difference in the incidence of cancer cell metastasis one year after surgery between the two groups(P>0.05).Conclusion Four-step LCA retention has no significant effect on the operation time,blood loss,lymph node clearance,and tumor marker level in patients undergoing laparoscopic radical resection for rectal cancer,but LCA retention significantly reduced the risk of complications.
Left colic arteryLaparoscopyRadical resection of rectal cancerLymph node dissection