Effect of Dexmedetomidine with Different Anesthetic Dosage on Neurocognitive Function in Elderly Patients After Operation Based on Neural Network Model

This paper uses a neural network model to study the protective effect of dexmedetomidine on the anesthesia recovery period and neurocognitive function in elderly patients undergoing radical resection of colorectal cancer. Eighty-eight patients with colorectal cancer who underwent radical surgery in our hospital from January 2015 to June 2017 were randomly divided into groups: study (43 cases) and control (45 cases). The study group was treated with dexmedetomidine for anesthesia. Patients in the study group were given a slow pumping dose of 1 μg/kg to prepare dexmedetomidine at a dose of 1 μg/kg. The pumping time was >10 minutes, and the dose was 0.3 μg after completion. The loading dose of 0.3 (kg·h) was maintained intraoperatively; the control group was given the same amount of saline infusion by the same infusion method. The study found that the probability of cognitive dysfunction in the study group was significantly lower than that in the control group, and the degree of cognitive dysfunction in the study group was significantly lower than that in the control group (P < 0.05). Therefore in the operation of elderly patients with colorectal cancer radical surgery, dexmedetomidine is used for anesthesia to protect postoperative cognitive function and reduce the incidence of cognitive dysfunction. Extensive promotion and application in the clinic.