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The aim of the present study was to assess the effect of remifentanil on the incidence of emergence agitation in preschool-aged children undergoing adenotonsillectomy with sevoflurane anaesthesia. Sixty children, aged three to seven years, American Society of Anesthesiologists physical status I or II, were randomised into either group S (sevoflurane alone, n=30) or group R (sevoflurane plus remifentanil, n=30). Anaesthesia was induced with an intravenous bolus injection of fentanyl 3 μg/kg and propofol 2.5 mg/kg. Endotracheal intubation was facilitated by vecuronium 0.1 mg/kg. All patients were ventilated with 50% nitrous oxide and 1.5 to 2.5% sevoflurane in oxygen. End-tidal CO 2  was maintained at 35∓4 mmHg. Group S received no other medication while group R received remifentanil 1 μg/kg/minute intraoperatively. Mean blood pressure, heart rate, pulse oximetry, eye-opening time and extubation time were recorded in the operating room. In recovery, emergence agitation was assessed using the Pediatric Anesthesia Emergence Delirium scale with a score ≥10 taken as indicating agitation. Emergence agitation occurred in 20 of the 30 patients in group S and seven of the 30 patients in group R (P &lt;0.01). In preschool-aged children undergoing adenotonsillectomy with sevoflurane general anaesthesia, after propofol and fentanyl induction, intraoperative remifentanil decreased the incidence of emergence agitation.

The Effect of Remifentanil on the Incidence of Agitation on Emergence from Sevoflurane Anaesthesia in Children Undergoing Adenotonsillectomy