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| Effect of Ultrasound-guided Lower Limb Nerve Block combined with Dexmedetomidine Continuous Pump on Analgesia, Stress Level and Respiratory Circulation in Elderly Patients Received Hip Replacement |
| YU Fanting |
| Yantai Affiliated Hospital of Binzhou Medical University, Shandong Yantai 264100, China |
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Abstract Objective: To explore the effect of continuous ultrasound guided lower limb nerve block combined with dexmedetomidine continuous infusion on pain relief, stress level and respiratory and circulatory function in elderly patients undergoing hip replacement. Methods: A total of 128 patients undergoing unilateral hip arthroplasty from January 2016 to August 2017 were selected as the subjects. According to the random number table method, 128 patients were divided into the observation group and the control group, 64 cases in each group. The observation group was treated with ultrasound guided lumbar plexus and sciatic nerve block combined with dexmedetomidine (DEX) continuous infusion. The control group received general anesthesia combined with DEX intravenous infusion. After operation, the two groups continued intravenous analgesia 48h.The analgesic effect, stress level and respiratory and circulatory function were compared between the two groups. Results: All the patients completed the operation successfully. There was no significant difference in the basic operation between the two groups (P>0.05). The scores of 2, 4, 8, 12, 24 and 48hVAS in the observation group were significantly lower than those in the control group (P<0.05). At the time of TO, there was no difference in Cor level between the two groups (P>0.05), and the Cor level of the two groups decreased at all other times, which was significantly lower in the observation group than in the control group (P<0.05). Two groups of MAP, HR and RR decreased to varying degrees. The levels of MAP and RR in the observation group were significantly higher than those in the control group (P<0.05). HR had no significant difference compared with the control group (P>0.05), and there was no difference in SpO2 between the two groups at different time periods (P>0.05). Conclusion: Ultrasound-guided lower extremity nerve block combined with dexmedetomidine continuous pump has good effect in elderly hip surgery, which can maintain the stability of respiratory and circulatory function, less stress response, good analgesic effect after operation, and effectively reduce the occurrence of adverse reactions after operation.
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2019, Vol. 25 
