A view of comparison of nalbuphine and fentanyl with Ropivacaine for ultrasound guided costoclavicular brachial plexus block in upper limb surgeries

A prospective randomised double blind study is designed to compare inj.nalbuphine as an adjuvant to Inj.ropivacaine with inj.fentanyl as an adjuvant to inj.ropivacaine in costoclavicular block. Nalbuphine is mixed kappa agonist and meu antagonist opioid. Ropivacaine is long acting local anaesthetics like Bupivacaine without cardiotoxic effects. Our aim is to compare the nalbuphine and fentanyl as an adjuvant to ropivacaine in costoclavicular block in respect to onset of sensory block, onset of motor block, , duration of sensory block, duration of motor block and total duration of analgesia.