Analysis of tympanometry of a severe to profound hearing-impaired population of school-age children.
Impedance audiometry provides a reliable technique for identifying undetected middle ear pathologies in children with severe to profound sensorineural hearing loss. In this study, tympanograms were obtained on 104 children with sensorineural hearing losses of 60 dB or more. The tympanograms were classified according to type and were compared for bilateral similarity. A high percentage of the younger children had abnormal tympanograms, with almost half of these children having the same type of abnormal tympanogram bilaterally. The use of impedance audiometry as a screening technique for hearing-impaired school-age children is discussed.
D000158:Acoustic Impedance Tests; D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D003638:Deafness / Q000503:physiopathology*; D004432:Ear, Middle / Q000503:physiopathology; D034381:Hearing Loss / Q000503:physiopathology*; D006312:Hearing Loss, Bilateral / Q000503:physiopathology; D006319:Hearing Loss, Sensorineural / Q000503:physiopathology; D006801:Humans; D010033:Otitis Media / Q000175:diagnosis*