Abstract:

Objective To explore the effects of preserving the left colic artery (LCA) in laparoscopic radical resection of rectal cancer on gastric function and complications in patients. Method 57 patients who underwent laparoscopic radical resection of rectal cancer admitted to Dunhua Hospital from December 2020 to November 2023 were randomly divided into a control group (28 cases) and an observation group (29 cases). The control group did not retain LCA during surgery, while the observation group retained LCA during surgery. Compare the incidence of complications, gastric function, urinary function, and anorectal dynamics between two groups. Result Compared with preoperative, the levels of gastrin, motilin, pepsinogen Ⅰ , and calcitonin gene related peptide

(CGRP) in both groups of patients increased 30 days after surgery, and the levels of gastrin, motilin, pepsinogen Ⅰ , and CGRP in the observation group were higher than those in the control group. Compared with preoperative data, the resting pressure and maximum systolic pressure of the anal canal in both groups of patients decreased 30 days after surgery, and the resting pressure and maximum systolic pressure of the anal canal in the observation group were higher than those in the control group, with significant differences (P ＜ 0.05). On the 7th day after surgery, the overactive bladder symptom scale (OABSS) scores of both groups of patients decreased compared to before surgery, and the OABSS scores of the observation group were lower than those of the control group, with significant differences (P ＜ 0.05). The total incidence of postoperative complications in the observation group was lower than that in the control group, with a significant difference (P ＜ 0.05). Conclusion Preserving LCA during laparoscopic radical surgery can improve the anorectal motility indicators of rectal cancer patients, quickly restore their gastric and urinary functions, and reduce the risk of complications.

Key words: Left colic artery, Laparoscopic radical resection of rectal cancer, Gastric function, Complications