title: Awareness during anesthesia in children: a prospective cohort study.
abstract: During routine adult anesthesia, the risk of awareness is 0.1%-0.2%. No recent studies have reported the incidence in children. Altered pharmacology and differing anesthesia techniques suggest that the incidence may differ in children. In this prospective cohort study, we determined the incidence of awareness during anesthesia in children. Eight-hundred-sixty-four children aged 5-12 yr who had undergone general anesthesia at The Royal Children's Hospital were interviewed on 3 occasions to determine the incidence of awareness. The awareness assessment was nested within a larger study of behavior change after anesthesia. Reports of suspected awareness were sent to four independent adjudicators. If they all agreed, a case was classified as true awareness. Twenty-eight reports were generated. There were 7 cases of true awareness, for an incidence of 0.8% (95% confidence interval, 0.3%-1.7%). Only one aware child received neuromuscular blockers, compared with 12% in the nonaware group. No aware child reported distress, and no substantial difference was detected in behavior disturbance between aware (20%) and nonaware (16%) children. The data provide some evidence that, like adults, children are also at risk of intraoperative awareness. Although the cause remains unclear, anesthesiologists should be alerted to the possibility of awareness in children.
authors.affiliation: *Department of Anaesthesia and Pain Management, The Royal Children's Hospital, Parkville, Victoria, Australia; †Department of Pharmacology, University of Melbourne, Melbourne, Victoria, Australia; ‡Clinical Epidemiology and Biostatistics Unit, The Royal Children's Hospital, Parkville, Victoria, Australia; and §Department of Psychology, The Royal Children's Hospital, Parkville, Victoria, Australia.
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Davidson
authors.forename: Grace H
authors.initials: GH
authors.lastname: Huang
authors.forename: Caroline
authors.initials: C
authors.lastname: Czarnecki
authors.forename: Margaret A
authors.initials: MA
authors.lastname: Gibson
authors.forename: Stephanie A
authors.initials: SA
authors.lastname: Stewart
authors.forename: Kris
authors.initials: K
authors.lastname: Jamsen
authors.forename: Robyn
authors.initials: R
authors.lastname: Stargatt
mesh_terms: D000758:Anesthesia; D001364:Awareness; D002648:Child; D002675:Child, Preschool; D015331:Cohort Studies; D005260:Female; D006801:Humans; D008297:Male; D011446:Prospective Studies
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