Effect of Remimazolam Sedation on Outcomes of Mechanically Ventilated Patients in the ICU

In the intervention group, patients with a Richmond Agitation-Sedation Scale (RASS) score of -3 to 0 were given remimazolam besylate for injection at a loading dose of 0.08 mg/kg infused intravenously over 10 min, followed by a continuous infusion at a rate of 0.2 mg/kg/h. When dose adjustment was required, each step was 0.1-0.2 mg/kg/h, with a dose range of 0-2 mg/kg/h, until the target sedation level (RASS: -3 to 0) was achieved. If the target sedation level was not reached, an additional bolus dose of 0.08 mg/kg remimazolam besylate could be administered.

In the control group, patients received propofol emulsion injection at a loading dose of 0.3 mg/kg/h injected over 1 min, followed by a continuous infusion at a rate of 0.3 mg/kg/h. Dose adjustments were made in increments of 0.3-0.6 mg/kg/h, within a dose range of 0.3-4 mg/kg/h, to achieve the target sedation level (RASS: -3 to 0).