70
Participants
Start Date
August 31, 2015
Primary Completion Date
December 31, 2015
Study Completion Date
December 31, 2015
stimuplex insulated needle
"2P2I group: nerve stimulating needle is advanced twice with the up-down direction at the different puncture site and LA is injected 15 mL at a time.~1P2I group: nerve stimulating needle is advanced twice with the up-down direction at the same puncture site and LA is injected 15 mL at a time."
lidocaine mixed with epinephrine
2P2I group and 1P2I group use the same LA (1.5% lidocaine mixed with 1:200,000 epinephrine). But 2P2I group is injected LA at equally divided doses (15 mL at a time) with the up-down direction at the different puncture site. 1P2I group is injected LA at equally divided doses with the up-down direction at the same puncture site.
Department of Anesthesiology and Pain Medicine, Gachon University Gil Medical Center, Incheon
Gachon University Gil Medical Center
OTHER