Effect of different preoperative nutritional statuses on intraoperative unexpected hypothermia in elderly patients with laparoscopic gastrointestinal tumor radical operation and its risk factors analysis
Objective To analyze the effect of preoperative nutritional status on the intraoperative un-expected hypothermia in elderly patients with laparoscopic gastrointestinal tumor radical operation and its risk factors.Methods The clinical case data in 282 elderly patients with laparoscopic gastrointestinal tumor radical surgery in the Fourth Affiliated Hospital of Nanjing Medical University from February 2021 to December 2023 were analyzed retrospectively.The mini nutritional assessment short form(MNA-SF)was adopted to e-valuate the preoperative nutritional status of the patients.The intraoperative unexpected hypothermia occur-rence were statistically analyzed.The univariate and multivariate logistic regression was used to analyze the in-fluencing factors.Results Among 282 patients,104 cases(36.88%)had unexpected hypothermia during op-eration.The incidence rate of intraoperative unexpected hypothermia in the patients with complicating malnu-trition or malnutritional risk was significantly higher than that in the patients with normal nutritional status(P<0.05).The multivariate logistic regression analysis showed that the age ≥70 years old,body mass index(BMI)<18.5 kg/m2,progressive weight loss appearance before surgery,preoperative MNA-SF score<12 points,CO2 pneumoperitoneum time>4 h and complicating hypoalbuminemia were the independent risk fac-tors for intraoperative unexpected hypothermia occurrence in the elderly patients with laparoscopic gastroin-testinal tumor radical operation(P<0.05),while the use of heating device for initiatively maintaining tem-perature during surgery was the protective factor for avoiding intraoperative unexpected hypothermia occur-rence(P<0.05).Conclusion The elderly patients with poor nutritional status undergoing laparoscopic gas-trointestinal tumor radical surgery are more likely to develop unexpected hypothermia.There are many influ-encing factors,so close attention should be paid to.