Anxiety Clinical Trial
Official title:
Effect of Different Doses of Dexmedetomidine on Cerebral Oxygen Saturation and Postoperative Anxiety in Elderly Patients
To investigate the effect of different doses of dexmedetomidine on Cerebral Oxygen Saturation and Postoperative anxiety in elderly patients undergoing laparoscopic surgery
A total of 105 patients who were admitted to The First Hospital of Qinhuangdao for laparoscopic surgery and divided into control group (group C), dexmedetomidine doses of 0.2 μg/kg (group D1), dexmedetomidine doses of 0.5 μg/kg (group D2). 105 patients were randomized equally into 3 groups. 35 cases in each group. Group C received general anesthesia without dexmedetomidine, groups D1 received general anesthesia with intravenous pump of 0. 2μg/kg/h dexmedetomidine, groups D2 received general anesthesia with intravenous pump of 0. 5μg/kg/h dexmedetomidine.SBP(Systolic Blood Pressure),DP(Diastolic Pressure),HR(Heart Rate) and rScO2(Regional cerebral oxygen saturation) of the three groups were recorded before anesthesia induction (T1), at the time of intubation (T2), five minutes after induction(T3),at the beginning of surgery (T4), immediately after surgery (T5), and five minutes after extubation (T6). The cognitive function of the three groups was assessed with the Mini Mental State Scale (MMSE) on the day before surgery. the anxiety of the three groups was assessed with Self-rating Anxiety Scale (SAS) on the day before surgery,one day after and three days after surgery, comparing the incidence of anxiety between the three groups. Analyze whether dexmedetomidine reduced the incidence of anxiety by increasing cerebral oxygen saturation. ;
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