Objective: To observe the effect and safety of application of combined spinal and epidural anesthesia to hip surgery on the elderly.Methods: 47 patients aged over 70 years underwent hip surgery;All patients were given combined spinal and epidural anesthesia with 7.5mg~10mg of 0.5% bupivacaine(1~1.4ml of 0.75% bupivacaine was attenuated with 0.5~1ml of cerebrospinal fluid;density: 1.010).The time to anesthesia?sensory block levels and the effect of analgesia and muscle relaxation were recorded;BP?HR and SPO2 were monitored.Results: Foot febrile and lower limb numbness appeared in 40 patients immediately after drug administration;foot febrile appeared in 7 patients 3min after drug administration.There were 3 patients at the highest sensory block levels(T6)?40 patients at T10~12 and 7 patients at T7~9.Combined spinal and epidural anesthesia could provide 100% satisfactory analgesia and muscle relaxation during operation.BP and HR had no obvious variation after anesthesia.Conclusion: The application of combined spinal and epidural anesthesia has the advantage of low-dosage?fast-acting?consummate analgesia?satisfactory muscle relaxation and small interference with recirculating and respiratory system;etc

and so it is safe and effective for hip surgery on the elderly.