Improved Brachial Plexus Blockade with Bupivacaine Hydrochloride and Carbonated Lidocaine

Statistical norms were sought for the latency and duration of supraclavicular brachial block in 183 patients, using 1 per cent lidocaine hydrochloride, 1 per cent mepivacaine hydrochloride, 1 and 2 per cent carbonated lidocaine, and 0.25 per cent bupivacaine. Cutaneous areas subserved by the median