Electroencephalography during general anaesthesia differs between term-born and premature-born children
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CitationPoorun, Ravi, Caroline Hartley, Sezgi Goksan, Alan Worley, Stewart Boyd, Laura Cornelissen, Charles Berde, Richard Rogers, Tariq Ali, and Rebeccah Slater. 2016. “Electroencephalography During General Anaesthesia Differs Between Term-Born and Premature-Born Children.” Clinical Neurophysiology 127 (2) (February): 1216–1222. doi:10.1016/j.clinph.2015.10.041.
Premature birth is associated with a wide range of complications in later life, including structural and functional neurological abnormalities and altered pain sensitivity. We investigated whether during anaesthesia premature-born children display different patterns of background EEG activity and exhibit increased responses to nociceptive stimuli.
We examined background EEG and time-locked responses to clinical cannulation in 45 children (mean age (±SD) at study: 4.9(±3.0)years) under sevoflurane monoanaesthesia maintained at a steady-state end-tidal concentration of 2.5%. 15 were born prematurely (mean gestational age at birth: 29.2 ± 3.9 weeks) and 30 were age-matched term-born children.
Background levels of alpha and beta power were significantly lower in the premature-born children compared to term-born controls (p=0.048). Clinical cannulation evoked a significant increase in delta activity (p=0.032), which was not significantly different between the two groups (p=0.44).
The results indicate that whilst under anaesthesia premature-born children display different patterns of background brain activity compared to term-born children.
As electrophysiological techniques are increasingly used by anaesthetists to gauge anaesthetic depth, differences in background levels of electrophysiological brain activity between premature and term-born children may be relevant when considering titration of anaesthetic dose.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:34900486
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