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Original

Effects of Middle-Ear Disease and Cleft Palate on High-Frequency Hearing in Children

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Pages 136-148 | Received 12 Nov 1985, Accepted 30 Jan 1986, Published online: 31 Jan 2011
 

Abstract

High-frequency hearing loss in children with cleft palate has been documented recently. The present study was designed to investigate whether hearing loss can result solely as a consequence of middle-ear disease in early life or as a result of cleft palate and its sequelae which include middle-ear disease. Our results demonstrate that auditory functions for test frequencies 250-6 000 Hz were not significantly different among the two investigational groups of children with high incidence of middle-ear disease, and a control group of children with virtually no middle-ear disease. However, for high-frequency thresholds (8 000-20 000 Hz), both groups of children with high incidence of middle-ear disease were statistically different from the control group. Moreover, the children with cleft palate had high-frequency hearing that was statistically similar to that of children with normal orofacial structures and high incidence of middle-ear disease. Middle-ear disease alone, then, is a sufficient condition for loss of high-frequency sensitivity.

La perte auditive des hautes fréquences chez les enfants porteurs d'une fissure palatine a fait l'objet d'une documentation récente. Cette étude a été organisée de façon à établir si la perte auditive pouvait résulter uniquement d'une maladie de l'oreille moyenne dans la petite enfance, ou d'une fissure palatine et de ses séquelles qui comprennent les otites moyennes. Entre les deux groupes d'enfants prédisposés aux otites moyennes, et un groupe de contro˘le constitué d'enfants rarement atteints d'otites moyennes, nos résultats n'indiquent pas de différences significatives quant aux fonctions auditives pour des fréquences d'essai de 250 à 6 000 Hz. Néanmoins, en ce qui concerne les seuils aux hautes fréquences (de 8 000 à 20 000 Hz), les deux groupes d'enfants prédisposés aux otites moyennes étaient statistiquement différents du groupe de contro˘le. En outre, les enfants porteurs d'une fissure palatine avaient une audition des hautes fréquences qui était statistiquement semblable à celle des enfants porteurs de structures orofaciales normales et qui étaient prédisposés aux otites moyennes. A elle seule, une atteinte de l'oreille moyenne semble done ětre une condition suffisante pour l'apparition d'une perte auditive sur les hautes fréquences.

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