In this study, our aim was to compare the clinical effects of laparoscopic surgery and open surgery for the treatment of colon cancer. From January 2018 to December 2018, a random sample of 398 colon cancer patients was collected. The open abdominal surgery group underwent open surgery, while the laparoscopic surgery group underwent laparoscopic surgery. The success rate of the two groups, total intraoperative blood loss, length of incision, postoperative bedtime, times of lymph node dissection, and incidence of postoperative complications were compared. Both groups were provided carbon nanotracers for staining. The intraoperative blood loss of the laparoscopic group was significantly lower than that of the open abdominal group (this difference was statistically significant, P < 0.01). However, the operation time and lymph node dissection were similar for the laparoscopic group and the open abdominal group (the difference was not statistically significant, P > 0.05). The gastrointestinal function recovery time, hospital stay, and lung infection rate of patients in the laparoscopic group were significantly lower than those of patients in the open abdominal group. Postoperative bleeding, anastomotic leakage, and wound infection were also observed, but differences between the groups were not statistically significant. The incidence of postoperative complications in the laparoscopic surgery group was lower than that in the open surgery group (statistically significantly, P < 0.05). Laparoscopic surgery in patients with colon cancer is effective and offers patients improved health, shortened recovery time, and better quality of life. Carbon nanotracers can be used to stain lymph nodes and to make distinguishing between diseased and normal tissue easier.

Gastric cancer is a malignant tumor with a high incidence in the world, and the incidence rate only increases every year. Because of the loss of mental property caused by surgery and postoperative recovery treatment, it has become a difficult problem for many families to solve. Exploring the factors affecting the recovery of gastrointestinal function after surgery to accelerate the recovery has become one of the important research topics of current medical experts and scholars. The purpose of this article is to explore the factors affecting the recovery of gastrointestinal function after gastrointestinal malignancies. In this paper, firstly through experimental investigation, the fasting time and operation method of patients undergoing gastrointestinal malignant tumor surgery are used as variables to conduct a controlled experiment, and the first defecation time, exhaust time, and bowel sound recovery of the experimental subjects after surgery are recorded. Changes in time and other indicators are compared to verify whether they affect the recovery of gastrointestinal function. Experimental data showed that the recovery time of bowel sounds was 29.10 ± 11.09 h in patients with fasting time less than or equal to 2 days after operation, the time of first exhaustion was 28.75 ± 27.80 h, and the time of first defecation was 54.70 ± 39.40 h. The recovery time of bowel sounds in patients with fasting time longer than 2 days was 40.47 ± 9.40 h, the first exhaust time was 71.40 ± 17.54 h, and the first defecation time was 98.30 ± 28.16 h. Therefore, resuming diet as soon as possible after operation is beneficial to the recovery of gastrointestinal function in patients with gastrointestinal malignancies.

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