title: Dreaming during anaesthesia in patients at high risk of awareness.
abstract: Dreaming during anaesthesia is commonly reported but remains poorly understood. In this study, adult surgical patients at high risk of awareness were randomly assigned to receive bispectral index (BIS)-guided anaesthesia or routine care, and were interviewed about dreaming three times postoperatively. Dreaming patients (n = 134) were compared with all other patients who were interviewed at least once (n = 2251). Intraoperative dreaming was reported by 4.2%, 3.9% and 3.4% of patients at 2-4 h, 24-36 h and 30 days after surgery, respectively. Fewer BIS-monitored patients reported intra-operative dreaming at 2-4 h than control patients (2.7% vs. 5.7%; p = 0.004). Reports of dreaming were similar in the two groups at 24-36 h and 30 days. Dreaming patients were younger (p = 0.001); healthier (p < 0.001) and more likely to be women (p < 0.001), and were less satisfied with anaesthetic care (p = 0.004) than other patients.
authors.affiliation: Department of Anaesthesia and Pain Management, Royal Melbourne Hospital, Melbourne, Australia. kate.leslie@mh.org.au
authors.forename: K
authors.initials: K
authors.lastname: Leslie
authors.forename: P S
authors.initials: PS
authors.lastname: Myles
authors.forename: A
authors.initials: A
authors.lastname: Forbes
authors.forename: M T V
authors.initials: MT
authors.lastname: Chan
authors.forename: S K
authors.initials: SK
authors.lastname: Swallow
authors.forename: T G
authors.initials: TG
authors.lastname: Short
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D018681:Anesthetics, General / Q000494:pharmacology*; D001364:Awareness / Q000187:drug effects; D004311:Double-Blind Method; D004325:Dreams / Q000187:drug effects*; D004569:Electroencephalography / Q000187:drug effects; D005260:Female; D006801:Humans; D007432:Intraoperative Period; D008297:Male; D008875:Middle Aged; D016343:Monitoring, Intraoperative / Q000379:methods*; D017060:Patient Satisfaction; D011184:Postoperative Period; D012307:Risk Factors; D012737:Sex Factors
chemical_list: D018681:Anesthetics, General