K K Brosius1, C F Bannister. 1. Department of Anesthesiology, Emory University School of Medicine, Children's Healthcare of Atlanta, Atlanta, GA 30322, USA. keith.brosius@emory.org
Abstract
BACKGROUND: We sought to determine the influence of preoperative oral midazolam on: (i) measures of anaesthetic emergence; (ii) recovery times and (iii) intraoperative bispectral index (BIS) measurements during sevoflurane/N2O anaesthesia in paediatric patients. METHODS:Fifty-two patients, aged 1-10 years, ASA I-II, were enrolled in a prospective double-blinded study. Patients were randomized to receive either midazolam 0.5 mg.kg(-1) (M) or midazolam vehicle (P) as premedication. After inhalation induction and intubation, expired sevoflurane was stabilized at 3% in 60% N2O and the corresponding BIS (BIS I) recorded. At the completion of surgery, sevoflurane was stabilized at 0.5% and the BIS (BIS E) again recorded. Awakening time, expired sevoflurane/N2O awakening concentrations and recovery times were recorded. RESULTS: There were no significant differences between groups in awakening time, sevoflurane or N2O awakening concentrations, time to PACU discharge, time to hospital discharge or in BIS I and BIS E measurements.
RCT Entities:
BACKGROUND: We sought to determine the influence of preoperative oral midazolam on: (i) measures of anaesthetic emergence; (ii) recovery times and (iii) intraoperative bispectral index (BIS) measurements during sevoflurane/N2O anaesthesia in paediatric patients. METHODS: Fifty-two patients, aged 1-10 years, ASA I-II, were enrolled in a prospective double-blinded study. Patients were randomized to receive either midazolam 0.5 mg.kg(-1) (M) or midazolam vehicle (P) as premedication. After inhalation induction and intubation, expired sevoflurane was stabilized at 3% in 60% N2O and the corresponding BIS (BIS I) recorded. At the completion of surgery, sevoflurane was stabilized at 0.5% and the BIS (BIS E) again recorded. Awakening time, expired sevoflurane/N2O awakening concentrations and recovery times were recorded. RESULTS: There were no significant differences between groups in awakening time, sevoflurane or N2O awakening concentrations, time to PACU discharge, time to hospital discharge or in BIS I and BIS E measurements.
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