Comparative study of Overlap anastomosis and traditional anastomosis in total laparoscopic radical resection of left colon cancer.

PURPOSE

To investigate the safety and feasibility of using linear stapler to complete the side-to-side anastomosis (Overlap method) of distal and proximal colon on taenia coli along the long axis of the intestine in laparoscopic radical resection of left colon cancer.

METHODS

From January 2017 to December 2019, the clinical data of 24 patients with total laparoscopic radical resection of left colon cancer and Overlap anastomosis in the general surgery department of Wuhu First People's Hospital were retrospectively analyzed (research group, RG). In addition, 36 patients who underwent laparoscopic-assisted radical resection of left colon cancer during the same period and whose intestinal tubes were removed from the abdominal wall to complete specimen resection and intestinal anastomosis through auxiliary incision were used as controls (control group, CG). The advantages and disadvantages of the two surgical methods were compared through the research indexes during and after the operation.

RESULTS

Compared with CG, the total operation time of the patients in RG was shortened (p<0.001), the intraoperative blood loss was less (p<0.001), the abdominal wall incision length was shorter (p<0.001) and the postoperative hospital stay was shorter (p=0.014). There was no significant difference between RG and CG in the number of lymph node dissection, the time of first postoperative anal exhaust and the incidence of postoperative complications (all p>0.05).

CONCLUSION

The Overlap anastomosis technique of total laparoscopic radical resection of left colon cancer is feasible and easy to perform. It has the advantages of low incidence of complications, better cosmetic effect and short hospital stay. Although further prospective randomized studies are needed to determine its effects and limitations, it is still recommended that this operation can be popularized in clinical practice.