A study to compare pain relief after upper limb surgeries in patients receiving a nerve block with bupivacaine alone or bupivacaine with dexamethasone

INTERVENTION: Intervention1: Nil: Nil Intervention2: Bupivacaine: A single dose perineural administration of 0.5% Bupivacaine 25ml given through Ultrasound Guided Infraclavicular Brachial Plexus Block performed once before surgery on the day of operation Intervention3: Nil: Nil Intervention4: Nil: Nil Control Intervention1: Bupivacaine with dexamethasone: A Single Dose Perineural Administration of 0.5% Bupivacaine 25ml with 4mg Dexamethasone given through Ultrasound Guided Infraclavicular Brachial Plexus Block performed once before surgery on the day of operation CONDITION: Health Condition 1: S00‐T88‐ Injury, poisoning and certain other consequences of external causes PRIMARY OUTCOME: To Compare the Analgesic effectiveness of Ultrasound Guided Infraclavicular Brachial Plexus Block with Bupivacaine 0.5 percent versus Bupivacaine 0.5 percent with Dexamethasone 4 mg in Elective Upper Limb SurgeriesTimepoint: Onset of Sensory and motor block to 48 hours postoperative period SECONDARY OUTCOME: To compare the effectiveness of infraclavicular brachial plexus block with respect to onset of sensory and motor block,hemodynamic changes during intraoperative and postoperative period,time to first rescue analgesia,total rescue analgesic dose in 24 hours and duration of analgesiaTimepoint: Onset of sensory and motor block to 48 hours postoperative period INCLUSION CRITERIA: Patients belonging to American Society of Anaesthesiologists I and II who are posted for elective upper limb surgeries Patients who are willing to give written consent to participate in the study Patients with body mass inde Xof less than 30 kg per meter square