ED95 of remimazolam in nasal administration for attenuating preoperative anxiety in children

Author:

Long Xiang,Wen Li-xia,Yang Hu,Zhu Guo-hong,Zhang Qing-yun,Jiang Jing-jing,Gong Yuan

Abstract

BackgroundPreoperative anxiety often prevails in children at higher levels than adults, which is a common impediment for surgeons and anesthesiologists. It is of great necessity to explore an appropriate medication to improve this situation. Remimazolam, a type of benzodiazepine drug, has been indicated for the induction and maintenance of procedural sedation in adults since 2020. To date, rare studies were reported to investigate the effect of remimazolam on children. In this study, we investigated the safety and efficacy of intranasal drops of remimazolam and tried to determine the 95% effective dose (ED95) of remimazolam in single intranasal administration in attenuating preoperative anxiety in children.MethodsIn this study, 114 children were enrolled who underwent laparoscopic high-level inguinal hernia ligation between January 2021 and December 2022 and were divided into an early childhood children group and a pre-school children group. The biased coin design (BCD) was used to determine the target doses. A positive response was defined as the effective relief of preoperative anxiety (modified Yale Preoperative Anxiety Scale, mYPAS < 30). The initial nasal dose of remimazolam was 0.5 mg·kg−1 in the two groups. An increment or decrement of 0.1 mg·kg−1 was applied depending on the sedative responses. Isotonic regression and bootstrapping methods were used to calculate the ED95 and 95% confidence intervals (CIs), respectively.ResultsA total of 80 children completed the study, including 40 in the early childhood group and 40 in the pre-school children group. As statistical analysis indicated, the ED95 of a single intranasal infusion of remimazolam for the relief of preoperative anxiety is 1.57 mg·kg−1 (95% CI: 1.45–1.59 mg·kg−1) in early childhood children and 1.09 mg·kg−1 (95% CI: 0.99–1.11 mg·kg−1) in pre-school children, and the CIs did not overlap each other.ConclusionRemimazolam is an effective medication to relieve preoperative anxiety in children. Moreover, the ED95 of single nasal administration of remimazolam for effective relief of preoperative anxiety was 1.57 and 1.09 mg·kg−1 in early childhood children and pre-school children, respectively.

Publisher

Frontiers Media SA

Subject

General Medicine

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