Regional anesthesia and pain medicine
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Reg Anesth Pain Med
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Reg Anesth Pain Med · Jan 2013
Minimum effective volume of lidocaine for double-injection ultrasound-guided axillary block.
The aim of this study was to determine the minimum effective volume of lidocaine 1.5% with epinephrine 5 μg/mL in 90% of patients (MEV90) for double-injection ultrasound-guided axillary block (AXB). ⋯ For double-injection ultrasound-guided AXB, the MEV90 of lidocaine 1.5% with epinephrine 5 μg/mL is 5.5 and 23.5 mL for the musculocutaneous nerve and perivascular injection, respectively. Further dose-finding studies are required for other concentrations of lidocaine, other local anesthetic agents, and other techniques for ultrasound-guided AXB.