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Oral midazolam in paediatric premedication
Abstract
In a premedication study involving 135 children, aged 1 - 10 years, four regimens were investigated: (I) no premedication; (il) oral trimeprazine tartrate 2 mg/kg, methadone 0,1 mg/kg, droperidol 0,15 mg/kg (TMD); (iil) intramuscular midazolam . (Dormicum; Roche) 0,15 mg/kg; and (iv) oral midazolam 0,45 mg/kg. All premedications were given 60 'minutes before a standard halothane anaesthetic. No impairment of cardiovascular stability occurred but after premedication the mean oxygen saturation decreased by 1,6% and 1,1%, respectively, in the intramuscular midazolam and TMDgroups. Overall, children under 5 years of age behaved less satisfactorily in the holding room and at induction, than those over 5 years (P < 0,01). Midazolam, intramuscularty and orally, produced more satisfactory behaviour than the other two regimens (P< 0,05) and, combined with a 70% more rapid recovery than the TMD regimen (P < 0,05), suggests that oral midazolam is a more effective paediatric premedication agent than placebo orTMD.