الفهرس 
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Abstract
Background : Continuous axillary brachial plexus block (BPB) is an effective and safe technique for regional anesthesia for forearm and hand surgery. Aim of the study: The purpose of this study was to compare the efficacy and safety of either bupivacaine or ropivacaine for continuous axillary perivascular BPB for upper limb orthopedic surgery. Methods: Thirty patients (18-60 years old) of either sex were included in this study. Patients were randomized into two equal groups. The bupivacaine group (B) received a bolus dose of 30ml 0.5 % bupivacaine then continuous infusion of 0.25% bupivacaine as 0.1 mg/kg/hour was started with the beginning of surgery. Similarly, the ropivacaine group (R) received a bolus dose of 30ml 0.5% ropivacaine then infusion of 0.2% ropivacaine as 0.1mg/kg/hour. Results: In group R, the onset of sensory block and motor block were significantly faster than in group B. Also a significant prolongation of the total duration of analgesia and motor block was found in group R. Conclusion: According to these results, the quality of the axillary BPB after continuous of ropivacaine appeared to be superior to that of bupivacaine except for the more prolonged motor blockade associated with ropivacaine infusion.