Abstract:Objective To investigate the relationship between preoperative night blood pressure and postoperative complications of laparoscopic minimally invasive total mesenterectomy in patients with colon cancer.Methods The subjects were 174 patients who underwent laparoscopic minimally invasive mesenterectomy from March 2017 to March 2023. According to the preoperative night blood pressure drop rate, colon cancer patients were divided into two groups: the patients with a drop rate ≥ 0% of the preoperative night blood pressure were used as the declining group, and the number of cases was 92; The patients with drop rate < 0% in blood pressure at night before surgery was included in the rising group, and the number of cases was 82. The MAP of laparoscopic total mesenterectomy for colon cancer were collected at the time of admission, immediately after the start of surgery, from the beginning of the surgery to 30 minutes later, from the beginning of the surgery to 60 minutes later, from the beginning of the surgery to 120 minutes later, and at the completion of surgery. The incidence of postoperative complications during hospitalization in patients undergoing laparoscopic minimally invasive total mesenterectomy for colon cancer was recorded; Multivariate Logistic regression analysis was used to analyze the independent risk factors for complications after laparoscopic minimally invasive total mesenterectomy in patients with colon cancer.Results Before surgery, the incidence of diabetes and left ventricular mass index in the declining group were significantly lower than those in the rising group (P < 0.05). Among all the preoperative 24-hour ambulatory blood pressure parameters in the two groups, only the difference between preoperative night diastolic blood pressure and preoperative night systolic blood pressure were statistically significant (P < 0.05), and there was no significant difference in MAP between the two groups at different time points during surgery (P > 0.05). At each time after surgery, the MAP of the two groups was significantly lower than that at the time of admission (P < 0.05). The incidence of acute kidney injury in the declining group was 10.87%, which was significantly lower than that in the rising group 31.71% (P < 0.05). The results of multivariate Logistic regression analysis showed that the increase in blood pressure at night before surgery was an independent risk factor for acute kidney injury after laparoscopic minilally invasive total mesenterectomy for colon cancer (P < 0.05).Conclusion Preoperative night blood pressure increase is an independent risk factor for acute kidney injury after laparoscopic minimally invasive total mesenterectomy for colon cancer.