Gastroenterology Clinical Trial
Official title:
The Application of Remazolam in Gastroenteroscopy
OBJECTIVE: To study the safety, efficacy and clinical significance of remimazolam in the diagnosis and treatment of elderly obese patients with daytime gastrointestinal endoscopy, calculate the optimal dose, and conduct relevant verification. Provide a safer and more effective anesthesia solution for the growing special population. METHODS:Around 160 patients were selected to receive painless gastroenteroscopy.,they were divided into four groups of D1, D2, R and C. Group D1 and D2(including 60 patients) were used to calculate the ED50 and ED95 of the drug. According to up-and-down method, they were slowly injected 0.3μg/kg of remifentanil in advance, then 0.20mg/kg of remimazolam, and gastroscopy was performed after MOAA/S score ≤3. The next patient would be increased 0.05mg/kg of remimazolam if there is a positive standrd, otherwise it would be decreased 0.05mg/kg. And the study was terminated when seven crossing points occurred. One hundred patients were randomly divided into two groups of R and C.Before administration of remimazolam, remifentanil injection 0.3 μg/kg were given intravenously in two groups, respectively (injection rate was 30 s).Then group R was given the calculated dose of remimazolam, and group C was given propofol 1.5-2mg/kg.The success rate of sedation, changes in vital signs, adverse reactions, and postoperative recovery were recorded in the two groups.
The study used up-and-down methods to calculate the ED50 and ED95. According to up-and-down method, group D1 and D2 were slowly injected 0.5μg/kg of remifentanil in advance, then 0.20mg/kg of remimazolam, and gastroscopy was performed after MOAA/S score ≤3. The standard for a positive response in patients undergoing gastroscopy: coughing, swallowing, frowning, and physical movement affecting the operation during the examination. The next patient would be increased 0.05mg/kg of remimazolam if there is a positive standrd, otherwise it would be decreased 0.05mg/kg.And the study was terminated when seven crossing points occurred. Probit regression analysis method was used to calculate the ED50, ED95 and 95%CI of remimazolam combined with remifentanil in painless gastroenteroscopy. ;
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