A randomised clinical trial to compare the efficacy of single injection and triple injection using a Costoclavicular approach for infraclavicular brachial plexus block in upper limb surgery

2 groups of patients were given Costoclavicular approach of brachial plexus block using 2 different techniques in each group. Time of onset of sensory and motor block was evaluated.Secondary outcomes include time to achieve complete sensory and motor block, performance time, duration of analgesia, adverse events and complications like vascular puncture, pleural puncture, paresthesia etc. Results of both the groups were monitored for block till 30 mins post surgery and for analgesia, till 24 hours.