Randomized comparison between interscalene and costoclavicular blocks for arthroscopic shoulder surgery.


Department of Anesthesia, Hospital Clínico Universidad de Chile, University of Chile, Santiago, Chile [Email]


This randomized trial compared ultrasound-guided interscalene block (ISB) and costoclavicular brachial plexus block (CCB) for arthroscopic shoulder surgery. We hypothesized that CCB would provide equivalent analgesia to ISB 30 min after surgery without the risk of hemidiaphragmatic paralysis.


acute pain,brachial plexus,postoperative pain,upper extremity,