120
Participants
Start Date
November 16, 2011
Primary Completion Date
April 19, 2013
Study Completion Date
April 19, 2013
0.75% ropivacaine concentration
0.75% ropivacaine 8ml was injected epidurally after induction of general anesthesia
0.375% ropivacaine concentration
0.375% ropivacaine 8ml was injected epidurally after induction of general anesthesia
0.2% ropivacaine concentration
0.2% ropivacaine 8ml was injected epidurally after induction of general anesthesia
Pusan National University Yangsan Hospital, Yangsan
Pusan National University Hospital
OTHER