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Visual function and EEG reactivity in infants with perinatal brain lesions at 1 year

Published online by Cambridge University Press:  25 March 2002

E Biagioni ,
G Cioni ,
F Cowan ,
M Rutherford ,
S Anker ,
J Atkinson ,
O J Braddick ,
R Canapicchi ,
A Guzzetta  and
E Mercuri
E Biagioni
Affiliation:
Visual Development Unit, University College of London, London, UK.
G Cioni
Affiliation:
Division of Child Neurology and Psychiatry, Stella Maris Scientific Institute and University of PisaItaly.
F Cowan
Affiliation:
Department of Paediatrics and Neonatal Medicine, Hammersmith Hospital Imperial College School of Medicine, London, UK.
M Rutherford
Affiliation:
Department of Paediatrics and Neonatal Medicine, Hammersmith Hospital Imperial College School of Medicine, London, UK.
S Anker
Affiliation:
Visual Development Unit, University College of London, London, UK.
J Atkinson
Affiliation:
Visual Development Unit, University College of London, London, UK.
O J Braddick
Affiliation:
Visual Development Unit, University College of London, London, UK.
R Canapicchi
Affiliation:
Division of Child Neurology and Psychiatry, Stella Maris Scientific Institute and University of PisaItaly.
A Guzzetta
Affiliation:
Division of Child Neurology and Psychiatry, Stella Maris Scientific Institute and University of PisaItaly.
E Mercuri
Affiliation:
Department of Paediatrics and Neonatal Medicine, Hammersmith Hospital Imperial College School of Medicine, London, UK.
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Abstract

The aim of this study was to examine the correlation between EEG, visual, and brain MRI findings in 19 term infants with perinatal brain lesions. All 19 had their visual acuity and visual fields assessed and had an EEG and a brain MRI performed at 1 year of age. Four of the five infants with normal optic radiations and occipital cortices on MRI had normal vision. Involvement of optic radiations and occipital cortices was only associated with visual abnormalities in eight of 14 infants. The correlation between visual abnormalities and EEG findings was stronger. All infants with a completely normal EEG from the posterior regions had normal vision and all those with an EEG non-reactive to eye closure had visual abnormalities, irrespective of MRI data. A reactive EEG with other abnormal features (such as spikes, rapid or slow activities) was accompanied by abnormal vision in five of eight participants. Results suggest that there is a better correlation between visual function and EEG activity than between visual function and involvement of the classical visual areas of the occipital cortex and optic radiations on brain MRI at 1 year of age.

Type
Original Articles
Information
Developmental Medicine and Child Neurology , Volume 44 , Issue 3 , March 2002 , pp. 171 - 176
Copyright
© 2002 Mac Keith Press

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