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Abstract
This study aimed to investigate the sedative effect of dexmedetomidine combined with midazolam nasal drops before a pediatric craniocerebral magnetic resonance imaging (MRI). Eighty children who needed an MRI examination were enrolled in the present study and randomly divided into 2 groups: the observation group (dexmedetomidine combined with midazolam nasal drops) and the control group. After the children were given the medication, their heart rate, blood oxygen saturation (SpO2), and respiratory rate were continuously monitored and the adverse reactions such as nausea and vomiting, cough, restlessness, heart rate slowdown, and respiratory depression were observed. The difference in the onset time between the 2 groups was not statistically significant (P > 0.05), but the duration was significantly longer in the observation group than in the control group (P < 0.01) and the examination success rate were significantly higher in the observation group than in the control group (P < 0.05). The protocol of 3 μg/kg of a dexmedetomidine injection combined with 0.3 mg/kg of midazolam nasal drops is safe, easy to operate, and has a high success rate, which is worthy of clinical promotion.
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