Objective: To study the effects of intravenous anesthesia with fentanyl at different doses on hemodynamics and recovery time of children accepting cleft lip and palate repair surgery. Methods:Sixty children accepting cleft lip and palate repair surgery were randomly divided into groups A,B and C and were given 3,5,7 μg / kg fentanyl respectively. Heart rate( HR),mean arterial pressure( MAP),recovery time and adverse reaction including drowsiness,restlessness,nausea and vomiting were observed. Results: Child...