ANESTHESIOLOGY, vol.118, no.4, pp.863-867, 2013 (SCI-Expanded)
Background: Ultrasound guidance during peripheral nerve blocks has allowed for reduction in dose and volume of local anesthetic required to accomplish successful blockade using multiple injections through a needle. The authors undertook this study to determine the minimal effective volume required to accomplish successful interscalene brachial plexus block (ISB) through the catheter.