Forehead Skin Blood Flow in Normal Neonates during Active and Quiet Sleep, Measured with a Diode Laser Doppler Instrument

H.E. Suichies, J.G. Aarnoudse, A. Okken, H.W. Jentink, F.F.M. de Mul, Jan Greve

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Changes in forehead skin blood flow during active and quiet sleep were determined in 16 healthy neonates using a recently developed semi-conductor laser Doppler flow meter without light conducting fibres. Measurements were carried out at a postnatal age varying from 5 hours to 7 days. The two sleep states could be distinguished in 17 recordings. The mean skin blood flow values during active sleep were significantly higher (p<0.01) than those during quiet sleep, the mean increase being 28.1%. The variability of the flow signal, expressed as the coefficient of variation, changed significantly from 23.1% during active sleep to 18.2% during quiet sleep.
Original languageUndefined
Pages (from-to)220-225
JournalActa paediatrica Scandinavica
Issue number2
Publication statusPublished - 1988


  • IR-58418

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