88
Participants
Start Date
September 30, 2011
Primary Completion Date
March 31, 2012
Study Completion Date
March 31, 2012
Dexmedetomidine
After, induction of general anesthesia, dexmedetomidine 0.2 mcg/kg/hr continuous intravenous infused during the surgery
placebo group
normal saline\_02mcg/kg/hr
Severance Hospital, Seoul
Yonsei University
OTHER