Ultrasound-guided costoclavicular vs. axillary brachial plexus block: A randomized clinical study.

Background And Aims: Brachial plexus is in a very compact state at the costoclavicular space (CCS) when compared to the axilla, where the individual nerves are separate. This study aimed to test the hypothesis that brachial plexus block (BPB) at the CCS would result in a faster onset of block as compared to the axillary approach of BPB.

Material And Methods: Fifty patients who underwent surgeries below the level of mid-arm under ultrasound-guided BPB were randomly allocated to any one of the two study groups.