摘要：

SUMMARYHealthy children, 1.5 to seven years old, were divided into three groups of 20 each. Group 1 received midazolam 0.5 mg·kg^-1, Group 2, ketamine 6 mg·kg^-1 and Group 3 a mixture of midazolam 0.4 mg·kg^-1+ ketamine 4 mg·kg^-1. Each dose was mixed with atropcne 0.02 mg·kg^-1 plus an equal volume of cherry syrup and was given orally 20 to 30 min prior to surgery. A grade of 1 (asleep, difficult to arouse), 2 (asleep, easily aroused), 3 (awake, calm), 4 (awake, anxious, occasional cry), or 5 (crying, agitated), was assigned at the time of parental separation and again when mask induction was begun. A grade of 1–3 was considered successful. For parental separation, the mixture of ketamine + midazolam was 100% successful, ketamine 90% and midazolam 75%. Successful mask induction for the mixture of ketamine + midazolam was 85%, midazolam 65% and ketamine 42%. This study indicates that a mixture of

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