The electroencephalogram (EEG) during the re-establishment of consciousness after general anesthesia and surgery varies starkly between patients. Can the EEG during this emergence period provide a means of estimating the underlying biological processes underpinning the return of consciousness? Can we use a model to infer these biological processes from the EEG patterns? A frontal EEG was record...

Are animals conscious? If so, when did consciousness evolve? We address these long-standing and essential questions using a modern neuroscientific approach that draws on diverse fields such as consciousness studies, evolutionary neurobiology, animal psychology, and anesthesiology. We propose that the stepwise emergence from general anesthesia can serve as a reproducible model to study the evolu...

Introduction. It is a consensus that the postoperative cognitive function is impaired in elderly patients after general anaesthesia, and such category patient takes more time to recover. Xenon is a noble gas with anesthetic properties mediated by antagonism of N-methyl-D-aspartate receptors. With a minimum alveolar concentration of 0.63, xenon is intended for maintaining hypnosis with 30% oxyge...

BACKGROUND Sevoflurane is a popular inhalational anesthetic for general anesthesia in children. The higher incidence of emergence agitation has been suspected after sevoflurane anesthesia as compared with halothane, whereas some controlled studies showed conflicting results. In this report, the authors performed a meta-analysis of randomized controlled trials to compare the incidence of emergen...

abstract emergence agitation that has been first described by eckenhoff et al. in 1960’s is a dissociated state of consciousness in which the child is inconsolable, irritable, uncooperative, typically thrashing, crying, moaning or incoherent. it is also a common problem in pediatric postanesthetic care unit with an incidence ranging from 10 to 80%. this literature review focused on presence of ...

Emergence agitation (EA) is an important issue in pediatric anesthesia. This phenomenon arises more frequently with the use of inhalational agents. Three commonly used general anesthesia techniques in children were evaluated as to the associated incidence of emergence reactions. An extensive literature review was performed to evaluate these anesthetic practices and the occurrence of EA in young...

Objective: The aim of the present study was to evaluate the effects of dexmedetomidine on the recovery profiles from general anesthesia in patients undergoing endoscopic sinus surgery (ESS). Methods: Sixty patients undergoing ESS under general anesthesia were randomly assigned to two groups. The dexmedetomidine group (Group D) received intravenous administration of dexmedetomidine 0.5 μg/kg aft...