Promethazine and Oral Midazolam Preanesthetic Children Medication

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Abstract

Aims

Several kinds of drugs have been investigated in preschool children as a preanesthetic sedation after various routes of administration for surgeries. This study aims to compare the efficacy of promethazine and oral midazolam for premedication in children aged 3 to 9 years who were scheduled for surgeries.

Methods

This is a double-blind randomized controlled study conducted on 93 patients between the age of 3 and 9 years at Loresten University of Medical Sciences Teaching Hospital, Khoramabad, Iran. The subjects were grouped into P (promethazine), M (midazolam), and C (control). About 0.3 mg/kg of oral promethazine was administered to patients in group P, 0.5 mg/kg of oral midazolam was administered to patients in group M, and 3 mL of normal saline as placebo was administered to patients in group C. Patient satisfaction, sedation and emotional score, systolic blood pressure (SBP), diastolic blood pressure, respiratory rate (RR), and heart rate (HR) were recorded.

Results

There was no statistically significant difference among the 3 groups. However, the period after medication, it was observed that SBP, diastolic blood pressure, RR, and HR in group C were statistically significantly higher than those in groups M and P. These 2 groups are similar in terms of SBP, RR, and HR. The emotional scores were comparable for the 2 groups. It was between 3.97 ± 0.6 to 1.7 ± 0.5 in group M and from 3.45 ± 1.17 to 2.745 ± 0.997 in group P in a Kruskal-Wallis test.

Conclusions

This study shows that both test groups reduce stress at the time of anesthetic induction and separation from their parents with similar effect. Both of the anesthetics are easily administered without the necessity of an additional equipment. A shorter period to maximal sedation for midazolam is an advantage, thus, making the drug helpful, mostly in the outpatient setting.

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