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  • Title: The Safety and Efficacy of Remimazolam Compared to Dexmedetomidine for Awake Tracheal Intubation by Flexible Bronchoscopy: A Randomized, Double-Blind, Controlled Trial.
    Author: Chen Q, Qin B, Zhang M, Zhou Y, Shi X, Xie Y.
    Journal: Drug Des Devel Ther; 2024; 18():967-978. PubMed ID: 38562518.
    Abstract:
    BACKGROUND: Remimazolam is a novel ultra-short-acting benzodiazepine sedative that has the potential to be an alternative for procedural sedation due to its rapid sedation and recovery, no accumulation effect, stable hemodynamics, minimal respiratory depression, anterograde amnesia effect, and specific antagonist. Here, we aimed to compare the safety and efficacy of remimazolam with dexmedetomidine for awake tracheal intubation by flexible bronchoscopy (ATI-FB). METHODS: Ninety patients scheduled for ATI-FB were randomly divided into three groups, each consisting of 30 cases: dexmedetomidine 0.6 µg/kg + sufentanil (group DS), remimazolam 0.073 mg/kg + sufentanil (group R1S), or remimazolam 0.093 mg/kg + sufentanil (group R2S). The primary outcome was the success rate of sedation. Secondary outcomes were MOAA/S scores, hemodynamic and respiratory parameters, intubation conditions, intubation time, tracheal intubation amnesia, and adverse events. RESULTS: The success rates of sedation in groups R2S and DS were higher than that in group R1S (93.3%, 86.7%, respectively, vs 58.6%; P = 0.002), and intubation conditions were better than those in group R1S (P < 0.05). Group R2S had shorter intubation times than groups R1S and DS (P = 0.003), and a higher incidence of tracheal intubation amnesia than group DS (P = 0.006). No patient in the three groups developed hypoxemia or hypotension, and there were no significant differences in oligopnea, PetCO2, or bradycardia (P > 0.05). CONCLUSION: In conclusion, both DS and R2S had higher success rates of sedation, better intubation conditions, and minor respiratory depression, but R2S, with its shorter intubation time, higher incidence of anterograde amnesia, and ability to be antagonized by specific antagonists, may be a good alternative sedation regimen for patients undergoing ATI-FB.
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