Article

The aims of this study were to estimate the frequency of hearing loss in
children with cerebral palsy (CP), to examine factors associated with hearing
loss, and to describe aspects of hearing in a population sample of children with
CP and hearing loss. METHOD: A systematic review of the international literature
was undertaken, and data on the frequency of hearing loss or severe hearing loss
were extracted from 14 data sets based on previously devised criteria. Six
hundred and eight-five children with CP (406 males, 279 females) born in
Victoria, Australia, between 1999 and 2004 were identified from the Victorian
Cerebral Palsy Register. Children were included if they had an established post
neonatal cause for their CP before the age of 2 years. Additional information was
collected on 48 children with documented hearing loss based on a four-tone pure
tone average in the better ear. RESULTS: There was considerable variation in the
definitions and proportions of hearing loss (range 4-13%) and severe hearing loss
(range 2-12%) reported by CP registries in developed countries. In Victoria, 7%
of individuals with CP had bilateral hearing loss of a moderate to profound
degree, whereas the subgroup with a severe-profound degree of loss constituted 3%
to 4% of the CP population. INTERPRETATION: These population-based data are
likely to more accurately reflect the true frequency of defined hearing loss in
children with CP than previous reviews.
CI - (c) The Authors. Developmental Medicine & Child Neurology (c) 2011 Mac Keith Press.
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Langue : ANGLAIS