Experimental Group |
Group D |
dexmedetomidine (Precedex, Abbot Laboratories Inc., Abbot Park, IL, USA 2 ml ,200ug vial,100ug/ml) 1¿g/kg over 10 min before induction of anesthesia followed by maintenance infusion of 0.2-0.7 ¿g/kg |
dexmedetomidine (Precedex, Abbot Laboratories Inc., Abbot Park, IL, USA 2 ml ,200ug vial,100ug/ml) 1¿g/kg over 10 min before induction of anesthesia followed by maintenance infusion of 0.2-0.7 ¿g/kg |
dexmedetomidine (Precedex, Abbot Laboratories Inc., Abbot Park, IL, USA 2 ml ,200ug vial,100ug/ml) 1¿g/kg over 10 min before induction of anesthesia followed by maintenance infusion of 0.2-0.7 ¿g/kg/hr and will be stopped before skin closure. |
16 |
|
Control Group |
Group S |
normal saline before induction of anesthesia in the same volume and rate, and will be stopped before skin closure. |
normal saline before induction of anesthesia in the same volume and rate, and will be stopped before skin closure. |
normal saline before induction of anesthesia in the same volume and rate, and will be stopped before skin closure. |
16 |
Active-Treatment of Control Group |