randomized controlled trial to verify the efficacy of alkalinized local anesthetics in ultrasound-guided supraclavicular brachial plexus block

ABSTRACT

Purpose: Alkalinization of local anesthetics to enhance their efficacy is controversial in peripheral nerve block. To define the efficacy of alkalinized mepivacaine 1% for supraclavicular brachial plexus block, we verified the onset and duration of sensory block using an ultrasound-guided technique