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  • Title: The perioperative effects of oral premedication in children.
    Author: van der Walt JH, Jacob R, Murrell D, Bentley M.
    Journal: Anaesth Intensive Care; 1990 Feb; 18(1):5-10. PubMed ID: 2186660.
    Abstract:
    The pre- and postoperative effects of oral diazepam (0.5 mg/kg), trimeprazine (4 mg/kg), pentobarbitone (3 mg/kg) and a placebo were compared in a randomized double-blind clinical trial in 149 children, aged one to ten years, undergoing adenotonsillectomy. The anaesthetic was standardised and each patient received intraoperative intramuscular papaveretum (0.3 mg/kg). Preoperative sedation was assessed in the ward before transfer onto the theatre trolley, on leaving the ward, on arrival on the theatre floor, on arrival in the induction room and on induction of anaesthesia. There was no significant difference in sedation between the four drug groups except for the placebo group which had a significantly greater unsatisfactory rating at the stage of induction of anaesthesia (P = 0.001). There were no differences in waking times between the diazepam, pentobarbitone and placebo groups, but the trimeprazine group's waking times were significantly prolonged (P less than 0.001). However, the trimeprazine group exhibited significantly less distress in the recovery unit (P = 0.02) and had half the incidence of vomiting (P less than 0.001) than did the other premedication groups.
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