The Effect of Midazolam on Dexamethasone-induced Perineal Pruritus

Status Completed

Clinical Trial Summary

Dexamethasone is commonly used in clinical practice.However, intravenous dexamethasone sodium phosphate may cause perineal discomfort.With the popularization of comfortable medical technology, patients have higher and higher requirements for comfortable medical treatment.Perineal pruritus caused by intravenous dexamethasone sodium phosphate may cause adverse physiological and psychological effects on patients and increase the incidence of unpleasant experiences during anesthesia.Therefore, it is very important to find a practical and effective method of inhibition.Midazolam is a water-soluble benzodiazepine commonly used in clinical practice, which has been proved to effectively inhibit the itching caused , while its effect on the itching caused by dexamethasone has not been reported.By observing the effect of pre-injection midazolam on the perineal itching caused by dexamethasone sodium phosphate, this experiment intends to preliminarily explore its possible mechanism .

Clinical Trial Description

Nighty patients scheduled for selective surgery,aged 18-65years,ASA physical status I~II,BMI 18~30kg·m-2 were selected in this study.The patients were equally randomized into two groups: midazolam (M) group and normal saline (N) group, 45 cases in each group. Before anesthesia induction, M group received intravenous injection of 0.03mg·kg-1 (1mg·ml-1) midazolam, while N group received corresponding intravenous normal saline of the same volume. After 1 min, both groups received intravenous injection of dexamethasone sodium phosphate injection of 10mg (injection was completed in 2s). The anesthesiologist assessed perineal irritation in both groups and recorded the number of cases,visual analogue scores (VAS) ,duration of itching or pain,Ramsay scores and observed the occurrence of adverse reactions such as dizziness and respiratory depression in the two groups. ;

Study Design

Related Conditions & MeSH terms

Pruritus

Clinical Trial Details

NCT number	NCT04326738
Study type	Interventional
Source	Yangzhou University
Contact
Status	Completed
Phase	Early Phase 1
Start date	January 16, 2020
Completion date	December 30, 2020

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