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ClinicalTrials.gov Identifier: NCT00226876
Recruitment Status :
First Posted : September 27, 2005
Last Update Posted : May 30, 2013
Australian and New Zealand College of Anaesthetists
Patients commonly report that they have been dreaming when they awaken from general anaesthesia. Our hypothesis is that patients who report dreaming are less deeply anaesthetised during anaesthesia than patients who do not report dreaming. Depth of anaesthesia will be determined using a processed electroencephalographic monitor (called the BIS monitor).
Condition or disease
In this study, we will record the depth of anaesthesia during surgery with the BIS monitor and then interview patients immediately upon emergence to determine whether they recall dreaming or not. The depth of anaesthesia of dreamers and non-dreamers will be assessed.
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Layout table for eligibility information
Ages Eligible for Study:
18 Years to 50 Years (Adult)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
Patients presenting for elective non-cardiac surgery
Age 18-50 years
American Society of Anesthesiologists physical status 1-3
Non-cardiac surgery under relaxant general anaesthesia
Tracheal extubation planned at end of surgery
Inadequate English language skills (due to language barrier, cognitive deficit or intellectual disability)
Major drug abuse or psychiatric condition
Expected to be unable to co-operate or be available for followup