A randomized comparison between costoclavicular and paracoracoid ultrasound-guided infraclavicular block for upper limb surgery

摘要

This two-centre randomized trial compared costoclavicular and paracoracoid ultrasound-guided infraclavicular brachial plexus block in patients undergoing upper limb surgery. We hypothesized that both techniques would result in similar onset times and designed the study as an equivalence trial.