Comparison Of Dexmedetomidine And Dexamethasone As An Adjuvant To Bupivacaine In Brachial Plexus Block

The linear transducer probe (frequency 4 -12 Hz) of USG machine will be used. A superficial skin wheal will be made by 2ml of 1% lignocaine subcutaneously at the point of needle insertion. USG guided Brachial plexus block will be performed by supraclavicular route via the subclavian perivascular approach in in-plane technique from lateral to medial using 22 gauge spinal needle. Study Drug will be administered via Pressure Monitoring line connected to syringe according to the allocated group with repeated aspiration and incremental dosing. • Intercostobrachial nerve block will be performed to alleviate the tourniquet pain. A 25 G needle will be inserted at the level of axillary fossa. The entire width of the medial aspect of arm, starting at the deltoid prominence and proceeding inferiorly, will be infiltrated with 5ml of 1% Lignocaine with Epinephrine (1:4,00,000) to raise a subcutaneous wheal. •