Objective: To observe the analgesic effect and safety of the combination blocking of obturator nerve, femoral nerve, lateral femoral cutaneous nerve and sciatic nerve under ultrasound guidance in popliteal cyst surgery. Methods: Selection was arranged in 60 patients having unilateral popliteal cyst surgery during the period from January 2014 to February 2016. They were randomly divided into two groups via the random number table: Group E with epidural anesthesia(30 cases) and Group N with ultrasound-guided nerve blocking(30 cases). Mean arterial pressure(MAP) and heart rate(HR) were monitored at the time spots of entrance into the operating room, popliteal cyst resection and skin suture. Visual analog scales(VAS) scores were monitored in surgery and 2, 4, 6, 10 hours after surgery. Meanwhile, The number of patients having hypotension with tolerance for tourniquet was recorded. Results: The vital signs of Group N was obviously less fluctuated versus Group E(P<0.05). The number of patients in Group N with tolerance of tourniquet was more than that in Group E(P<0.05), while no case of hypotension happened in Group N. There was no obvious difference for VAS scores in surgery and 2 hours after surgery between the two groups(P>0.05). However, VAS scores of Group N were obviously lower than Group E at the time spots of 4, 6, 10 hours after surgery(P<0.05). Conclusion: Ultrasound-guided multi-nerves combination blocking can fully meet the anesthesia requirements for popliteal cyst surgery with a longer duration of analgesia being safer and more effective. |
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