Abstract
OBJECTIVE: Remimazolam besylate and Ciprofol are newer sedatives used in minor surgeries. Propofol is a classic drug mainly used for short surgeries. This trial was conducted to compare the efficacy and safety of remimazolam besylate, ciprofol, and propofol during hysteroscopic surgeries. METHODS: Patients undergoing hysteroscopy were randomly assigned to receive remimazolam besylate (Group R), ciprofol (Group C), or propofol (Group P). A total of 194 patients were assessed for eligibility. One patient in Group P was excluded because the operation had timed out of 60 min. Patients all in Group R、Group C and Group P received an induction dose of 0.2 mg/kg remimazolam besylate、0.4 mg/kg ciprofol、2.0 mg/kg propofol seperately over 30 s. A corresponding dosage of 1 mg/kg/h、0.6-1.2 mg/kg/h and 3.0-6.0 mg/kg/h was given by continuous intravenous infusion to maintain a BIS of 40-60 till the end of the surgery. The incidence rates of body movement, respiratory depression, and adverse effects were compared among the groups. RESULTS: The incidence of injection pain was much higher in Group P (64.1%) than that in Group R (3.4%) and Group C (3.2%, both P < 0.001). The onset time was significantly shorter in Group P than that in Group R and Group C (both P < 0.01). The awakening time (MOAA/S score = 3) was longest in Group R, followed by Groups C and Group P (P < 0.01). The time to complete recovery (MOAA/S score = 5) has no significantly difference between Group C and Group P, whereas the onset time was significantly shorter in Group R (P < 0.01). The number of body movements was significantly higher in Group R than that in Group C and Group P (P < 0.01). The incidence of hypotension was significantly lower in Group R than that in Group C and Group P (both P < 0.01). The rate of respiratory inhibition was significantly lower in Group R and Group C than that in Group P (both P < 0.05). CONCLUSION: Considering jointly the safety and efficacy, ciprofol seems to be the best choice for sedation.