• Anaesthesia · Nov 2020

    Randomized Controlled Trial

    The effect of dexmedetomidine on postoperative behaviour change in children: a randomised controlled trial.

    Dexmedetomidine does not improve day 3 behaviour among 2-7 year olds after day case surgery.

    • P F Lee-Archer, B S von Ungern-Sternberg, M Reade, M Betts, D Haenke, A Keys, T Rance, K Gibbons, and D Long.
    • Department of Anaesthesia, Queensland Children's Hospital, Brisbane, QLD, Australia.
    • Anaesthesia. 2020 Nov 1; 75 (11): 1461-1468.

    AbstractChildren may develop changes in their behaviour following general anaesthesia. Some examples of negative behaviour include temper tantrums and nightmares, as well as sleep and eating disorders. The aim of this study was to determine whether dexmedetomidine reduces the incidence of negative behaviour change after anaesthesia for day case surgery in children aged two to seven years. Children were randomly allocated to one of three groups: a premedication group received 2 mg.kg-1 intranasal dexmedetomidine; an intra-operative group received 1 mg.kg-1 intravenous dexmedetomidine; and a control group. The primary outcome was the incidence of negative behaviour on postoperative day 3 using the Post-Hospitalisation Behaviour Questionnaire for Ambulatory Surgery (PHBQ-AS) and the Strength and Difficulties Questionnaire (SDQ). Secondary outcomes included: the incidence of negative behaviour on postoperative days 14 and 28; anxiety at induction; emergence delirium; pain; length of recovery and hospital stay; and any adverse events. The data for 247 patients were analysed. Negative behaviour change on postoperative day 3 was similar between all three groups when measured with the PHBQ-AS (47%, 44% and 51% respectively; adjusted p=0.99) and the SDQ (median scores 7.5, 6.0 and 8.0 respectively; adjusted p=0.99). The incidence of negative behaviour in the group who received dexmedetomidine intra-operatively was less at postoperative day 28 (15% compared with 36% in the dexmedetomidine premedication group and 41% in the control group, p<0.001). We conclude that dexmedetomidine does not reduce the incidence of negative behaviour on postoperative day 3 in two to seven-year olds having day case procedures.© 2020 Association of Anaesthetists.

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    Dexmedetomidine does not improve day 3 behaviour among 2-7 year olds after day case surgery.

    Daniel Jolley  Daniel Jolley
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