Relationship between changes in power spectra of electroencephalograms and arterial halothane concentration in infants

Acta Anaesthesiologica Scandinavica
K SugiyamaH Matsuura

Abstract

A power spectral analysis of electroencephalograms (EEGs) was performed in 30 infants who underwent plastic surgery for cleft lip or cleft palate. The study was conducted to investigate whether there was a significant correlation between EEG changes and arterial halothane concentration in infants. The power spectral analysis of EEGs was performed by the fast Fourier transform (FFT). Arterial halothane concentration was measured with gas chromatography. The relationship between the changes in the power spectra of EEGs and the arterial halothane concentration was examined by means of a multivariate analysis. Prior to administration of halothane, two kinds of EEG patterns were discernible. In one pattern the peak of the EEG power spectra was seen in the slow wave band (slow wave group); in the other the peak of the power spectra was present in the fast wave band (fast wave group). In the occipital lead the multiple correlation coefficient and the index of determination of the slow wave group were 0.71 and 0.50, respectively, and those of the fast wave group were 0.78 and 0.61, respectively. A significant correlation was proved to be present between the normalized values of the EEG power spectra and arterial halothane concentration...Continue Reading

References

Jan 1, 1976·Canadian Anaesthetists' Society Journal·J L BerezowskyjL C Jenkins
Jan 1, 1983·Electroencephalography and Clinical Neurophysiology·M Matousek, I Petersén
Jul 1, 1957·Canadian Anaesthetists' Society Journal·E A GAIN, S G PALETZ
Feb 1, 1963·Electroencephalography and Clinical Neurophysiology·B HELLSTROMH MUSSBICHLER
Jan 1, 1964·Acta Anaesthesiologica Scandinavica·L E BACKMANL WIDEN
Feb 1, 1955·Electroencephalography and Clinical Neurophysiology·H P CORBIN, R G BICKFORD

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Citations

Oct 10, 2009·The Bulletin of Tokyo Dental College·Yui TerakawaYuzuru Kaneko
Dec 22, 2007·Paediatric Anaesthesia·Andrew J DavidsonChris Williams
Apr 19, 2006·Paediatric Anaesthesia·Andrew J Davidson

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