Application of Nerve Blockade in Surgeries of Single Leg in Aged

Objective:To compare the complications of anesthesia between nerve blockade and intraspinal anesthesia in surgeries of single leg in aged.Methods:66 cases for surgeries of single leg,who aged between 65 and 85 years old with ASA in grade Ⅰ to Ⅲ were randomly divided into group with epidural anesthesia(E group) and group with nerve blockade(NB group).NB group was divided into two subgroups: S+F group(n=22) and F+L group(n=22).NB group received nerve blockade located by nerve stimulator,sciatic nerve combined with femoral nerve blockade for surgery in inferior knee joint,or sciatic nerve combined with lumbar plexus blockade for surgery in hip joint and shaft of femur.E group received lidocayin through puncture between L3 and L4 and controlling anesthesia in T10.Before anesthesia and at 15,30,60 min after anesthesia and ended time,the BP,HR and SpO2 were observed.The onset time of anesthesia was recorded,and the duration of analgesia and residence time of motion was followed up.The occurrence of toxic effect and hypotension during operation and complications including urine retention and nausea and vomiting were observed.The efficacy of anesthesia was evaluated based on criteria of nerve blockade grading.Results:In NB group,the hemodynamics was steady.The surgeries were successful with less postoperative complications and better maintaining analgesia.Conclusion: Nerve blockade is safe and feasible technique for aged patients receiving surgies of single leg,with stable circulation,perfect anesthetic effect and less adverce effect and quick recovery.