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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2010-8-26
pubmed:abstractText
Central orexinergic and noradrenergic neurons are involved in the control of sleep and wakefulness. In addition, previous reports suggest that both neurons may have an important role to play in general anesthesia. In the present study, we have determined whether general anesthesia would affect plasma orexin A (OXA) and norepinephrine concentrations. Twelve patients scheduled for elective ophthalmic surgery under general anesthesia with sevoflurane, fentanyl and vecuronium were studied. Arterial blood was collected before and 1 and 2h after induction of anesthesia and at emergence to measure plasma OXA, cortisol, norepinephrine and epinephrine concentrations. During anesthesia the inhalational concentration of sevoflurane was changed to maintain the bispectral index between 40 and 50. Plasma OXA, cortisol, norepinephrine and epinephrine did not change during anesthesia but significantly increased after emergence compared to pre-anesthesia (from 14.8+/-1.7 to 21.4+/-1.7 pM, p<0.01, from 26.5+/-5.2 to 52.8+/-6.0 pM, p<0.01, from 263+/-46 to 513+/-89 pM, p<0.01, and from 1239+/-120 to 1631+/-203 pM, p<0.01, respectively). There were significant correlations of plasma OXA with cortisol (r=0.334, p<0.05) and epinephrine (r=0.292, p<0.05) but not with norepinephrine. In conclusion we found that plasma OXA significantly increased at emergence from sevoflurane-fentanyl anesthesia and this was probably via activation of the hypothalamic-pituitary-adrenal axis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1872-7972
pubmed:author
pubmed:copyrightInfo
(c) 2010 Elsevier Ireland Ltd. All rights reserved.
pubmed:issnType
Electronic
pubmed:day
4
pubmed:volume
482
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
212-5
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Plasma orexin A increases at emergence from sevoflurane-fentanyl anesthesia in patients undergoing ophthalmologic surgery.
pubmed:affiliation
Department of Anesthesiology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan.
pubmed:publicationType
Journal Article, Clinical Trial, Research Support, Non-U.S. Gov't