Time to Loss of Consciousness With Remimazolam Versus Propofol for Anesthetic Induction in Laparoscopic Cholecystectomy

Authors
Category Primary study
Registry of Trialsclinicaltrials.gov
Year 2026
General anesthesia can be induced with several intravenous hypnotic agents. Propofolremains a standard choice due to its rapid onset and predictable clinical effect;however, it is frequently associated with dose‐dependent cardiovascular depression.Remimazolam, an ultra‐short‐acting benzodiazepine, represents an alternative with adistinct metabolic pathway via tissue esterases, potentially offering greater hemodynamicstability. Nonetheless, current literature comparing induction kinetics between these twopharmacological strategies exhibits high heterogeneity, often driven by variations indrug delivery methods and mixed surgical profiles.To improve the internal validity of these clinical comparisons, this protocol restrictsthe evaluation to a single, specific surgical model. Narrowing the clinical environmentto a uniform surgical procedure eliminates major confounding variables‐such as widelydivergent operational durations, patient positioning dynamics, unexpected blood loss, andvarying baseline nociceptive stimuli‐which typically complicate broader, multi‐proceduralanesthesia trials.Furthermore, because the physical characteristics of the study medications precludecomplete investigator masking during drug administration, specific operational safeguardsare built into the clinical workflow. Anesthesia delivery during the induction phaserelies entirely on pre‐specified, automated delivery algorithms (comparing a fixed‐ratecontinuous infusion against a pharmacokinetic target‐controlled model) rather thansubjective, clinician‐guided titration. Utilizing fixed algorithmic delivery protocolsprevents clinical preferences from influencing drug administration, thereby controllingfor potential execution bias.Following the induction phase, physiological tracking and depth‐of‐anesthesia monitoringare managed through objective, automated indices to ensure that post‐inductionadjustments remain standardized across both evaluation groups. This structured approachensures that the resulting clinical observations reflect the distinct pharmacological andpharmacokinetic profiles of the selected hypnotic strategies rather than confoundingclinical management choices.
Epistemonikos ID: 5a8c56d780ff8b2e1059772351c2b5c2209dab33
First added on: Jul 22, 2026