Anesthetic drugs & techniques

Relationship between effect site concentration of remimazolam at loss of consciousness and time to extubation: a prospective, single-centre, observational study

J Clin Monit ComputPublished Prospective observational study

Authors' conclusion

The effect site concentration of remimazolam at LOC could be useful for determining arousal time.

Study context

Population
Patients undergoing laparoscopic surgery under remimazolam GA
Participants
107 patients
Outcome
Relationship between the time for remimazolam effect site concentration to return to its level at loss of consciousness (LOC) and recovery of consciousness (ROC)
Methodological detailssingle-centre, Remimazolam dose adjusted to SEF < 16 on SedLine®; BIS, SedLine®, non-invasive CO and effect site concentration monitored simultaneously
  • Single-centre
  • Remimazolam dose adjusted to SEF < 16 on SedLine®; BIS, SedLine®, non-invasive CO and effect site concentration monitored simultaneously

Main finding

As reported in the abstract

Time from recovery of remimazolam effect site concentration to LOC level until ROC

Median time from recovery of effect site concentration to loss of consciousness (LOC) level until ROC

4.0 min

Observational data: associations, not effects.

Original publication

Relationship between effect site concentration of remimazolam at loss of consciousness and time to extubation: a prospective, single-centre, observational study. J Clin Monit Comput. Published 25 August 2025. doi:10.1007/s10877-025-01349-0

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