90
Participants
Start Date
October 31, 2012
Primary Completion Date
January 31, 2014
Study Completion Date
January 31, 2014
Caudal Dexmedetomidine
"Caudal: Levobupivacaine 0.25% 1ml/kg and dexmedetomidine 1µg/kg~Intravenous: 10 ml normal saline"
Intravenous Dexmedetomidine
"Caudal: Levobupivacaine 0.25% 1ml/kg~Intravenous: dexmedetomidine 1µg/kg"
Placebo
"Caudal: Levobupivacaine 0.25% 1ml/kg~Intravenous: 10 ml normal saline"
sevoflurane
Induction and maintain anaesthesia
Fujian Provincial Hospital, Fuzhou
West China Hospital
OTHER
Yao Yusheng
OTHER