Costoclavicular approach to the brachial plexus block: simple or double injection?

To the Editor, Infraclavicular costoclavicular approach to the brachial plexus block (ICBCC) is gaining popularity over the lateral parasagittal approach (ICBPS), as the costoclavicular space (CCS) may be the most convenient space to inject a local anesthetic (LA) to anesthetize all three the cords