... et al.R490Competing interestsThe author(s) declare that they have no competing interests.Author's contributionsHYP, SN, IK, JP and ER participated in the interpretation of theresults ... midazolam administration discontinued. The opti-mal depth of sedation for each patient was determined on clin-ical grounds, independent of the study, and was assessedusing the sedation–agitation scale ... minafter discontinuation of propofol. Weaning and extubationwere successful in 10 patients, whereas sedation was elec-tively restarted in the remaining nine patients. Of the ERP recordings, 2% and...