• M F Levine, I A Spahr-Schopfer, E Hartley, J Lerman, and B MacPherson.
• Department of Anaesthesia, Hospital for Sick Children, University of Toronto, Ontario, Canada.
• Can J Anaesth. 1993 Aug 1;40(8):726-9.

AbstractTo determine the minimum time interval between oral midazolam (0.5 mg.kg-1) premedication and separation from parents that ensures a smooth separation, 30 children were assigned randomly to one of three groups (ten children per group). The groups differed only in the time interval between administration of midazolam and separation from their parents: 10, 20 or 30 min. Heart rate, systolic blood pressure, and sedation and anxiolysis scores were assessed before midazolam premedication (baseline), at the time of separation from parents, and during the application of a face mask at the induction of anaesthesia. We found that heart rate and systolic blood pressure changes were similar for all three groups throughout the study period. Sedation scores at the time of separation from parents and on application of the mask for all three groups were greater than baseline values. Sedation scores at separation did not differ among the three groups. Anxiolysis values did not differ from baseline values at any time for all three groups. We conclude that children may be separated from their parents as early as ten minutes after receiving oral midazolam, 0.5 mg.kg-1.

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