Comparison of Dexamethasone 4mg and 8mg as an Adjuvant to 0.5% Bupivacaine in Supraclavicular Brachial Plexus Block for Upper Limb Surgeries-A Randomised Clinical Study

Local anesthetics alone for Supraclavicular brachial plexus block provide good operative conditions but have shorter duration of postoperative analgesia.  Dexamethasone is a very potent and highly selective glucocorticoid. Various studies have been done using dexamethasone as an adjuvant to local anesthetics mixture in brachial plexus block resulting in variable effects on onset but prolonged duration of analgesia and motor block.        This study attempts to compare the two doses of dexamethasone for onset time and duration of sensory and motor block.