publications

Electroencephalography During General Anaesthesia Differs Between Term-Born and Premature-Born Children.

A new publication for the PiPA group!

Citation:

Poorun R, Hartley C, Goksan S, Worley A, Boyd S, Cornelissen L, Berde C, Rogers R, Ali T, Slater R.(2015) Electroencephalography during general anaesthesia differs between term-born and premature-born children. Clin Neurophysioldoi: 10.1016/j.clinph.2015.10.041. [Epub ahead of print]

 

Abstract:

Objectives: 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.

Methods: 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±3.9weeks) and 30 were age-matched term-born children.

Results: 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).

Conclusions: The results indicate that whilst under anaesthesia premature-born children display different patterns of background brain activity compared to term-born children.

Significance: 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.

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