To compare the effect of 30ml of 0.5% bupivacaine and 30ml of 0.75% ropivacaine in supraclavicular brachial plexus block with respect to onset time of sensory blockade, onset time of motor blockade, duration of sensory blockade, duration of motor blockade, duration of analgesia and any side effects. MATERIALS AND METHODS Sixty patients of ASA-I and II undergoing elective upper limb surgeries lasting more than 30 minutes were randomly divided into Group B and Group R, which received 30ml of 0.5% bupivacaine and 0.75% ropivacaine respectively. Sensory and motor block onset and duration and duration of analgesia were evaluated statistically using unpaired t-test and p-value <0.05 was considered significant. RESULTS The onset time of sensory block was faster in Group R compared to Group B having a mean value of 16.13±3.05 minutes and 17.70±2.35 minutes respectively. The onset time of motor block was faster in Group R compared to Group B having a mean value of 23.90±1.83 minutes and 25.43±2.22 minutes respectively. The duration of sensory and motor block (Mean-minutes) was 480.3 and 472.8 in group R and 472.1 and 460.2 in group B. The duration of post-operative analgesia was 504.2 minutes in Group R and 499.6 minutes in Group B. CONCLUSION Group R provided statistically significant rapid onset of sensory and motor blockade, prolonged duration of both sensory and motor blockade, prolonged duration of analgesia than Group B for upper limb surgeries. There were no significant differences in haemodynamic changes and complications.
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