A Randomized Controlled Trial to Determine the Effect of Depth of Anesthesia on Emergence Agitation in Children.

Anaesthetics News

Fredrick, H. et al. Anesthesia & Analgesia: Published online: January 14, 2016

Background: The cause of emergence agitation (EA) in children is unknown. Rapid emergence from inhaled anesthesia has been implicated because EA is more common with sevoflurane than with halothane. A dose-dependent effect of sevoflurane, which increases seizure-like electroencephalogram activity, has also been proposed.

Methods: To determine whether depth of anesthesia as measured by bispectral index (BIS) affects EA, 40 ASA physical status I to II children aged 2 to 8 years undergoing ophthalmic surgery were enrolled in a blinded randomized controlled trial of low-normal (40-45, deep) versus high-normal (55-60, light) anesthesia. To distinguish transient irritability from severe EA, the primary outcome was first-stage postanesthesia care unit (PACU I) peak Pediatric Assessment of Emergence Delirium (PAED) score, with secondary outcomes of PAED and Face, Legs, Activity, Cry, and Consolability scores at emergence, postoperative fentanyl dose, emergence time, and discharge time. Subjects…

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