• F Erdil, S Demirbilek, Z Begec, E Ozturk, M H Ulger, and M O Ersoy.
• Department of Anaesthesiology and Reanimation, Inonu University, School of Medicine, Malatya, Turkey.
• Anaesth Intensive Care. 2009 Jul 1;37(4):571-6.

AbstractThis randomised controlled study evaluated the effects of fentanyl and dexmedetomidine on emergence characteristics of children having adenoidectomy and anaesthetised with sevoflurane. Ninety children, two to seven years of age and ASA physical status I, were studied. Children were randomly assigned to one of three groups of 30 children, with the study intervention injection given intravenously after intubation. Children in Group F received fentanyl 2.5 microg x kg(-1), children in Group D received dexmedetomidine 0.5 microG x kg(-1) and children in Group C received saline solution. Anaesthesia was induced with 50% N2O and 8% sevoflurane in O2 by mask and atracurium 0.6 mg x kg(-1) was administered for tracheal intubation. All children received paracetamol 40 mg/kg rectally one hour preoperatively and dexamethasone 0.5 mg x kg(-1) intravenously. The time to extubation was shorter in Group D than Group F. The eye-opening time was longer in Group F (16.1 +/- 5.3 minutes) than in Groups C (12.0 +/- 4.2 minutes) and D (12.7 +/- 3.2 minutes). The proportion of pain-free children in early recovery was significantly higher in Groups D (47%) and F (43%) than Group C (13%) (P < 0.05). The proportion of children with agitation scores > 3 was lower in Groups D 17% (5/30) and F 13% (4/30) than in Group C 47% (14/30) (P < 0.05). Fentanyl 2.5 microg x kg(-1) and dexmedetomidine 0.5 microg x kg(-1) had similar haemodynamic effects and emergence characteristics. Fentanyl has been safely used in children for many years. Further studies of dexmedetomidine safety and its interaction with other anaesthetic agents are required before recommending its routine use during general anaesthesia in children.

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