High Frequency Tympanometry (1000Hz) in Young Infants and Its Comparison With Otoacoustic Emissions, Otomicroscopy and 226Hz Tympanometry

Publication date: November–December 2016
Source:Acta Otorrinolaringologica (English Edition), Volume 67, Issue 6
Author(s): Eduardo A. Mena-Domínguez, José I. Benito-Orejas, Beatriz Ramírez-Cano, Darío Morais-Pérez, M. Fe Muñoz-Moreno
Introduction and objectiveIn the first 6 months of life, 226Hz tympanometry is considered an ineffective procedure for the diagnosis of otitis media with effusion. With the introduction of universal hearing screening, the use of high frequency 1000Hz (1kHz) tympanometry has been recommended. To optimise the diagnosis of neonatal hearing loss, we present this comparison, from the clinical point of view, of the results of 226Hz and 1kHz tympanometry in infants.Materials and methodsWe designed a prospective study of 100 children under 9 months of age proceeding from our hearing screening programme. We compare the result of tympanometry with binocular microscopy and transient evoked otoacoustic emissions.ResultsThe application of transient otoacoustic emissions, otomicroscopy and 226Hz and 1kHz tympanometry has shown its usefulness in the management of otitis media with effusion of young infants, with a similar effectiveness between the 4 tests.ConclusionThe joint use of otomicroscopy, transient otoacoustic emissions and 226Hz and 1kHz tympanometry, has allowed us to diagnose otitis media with effusion in young infants more accurately than each test separately. We recommend initial use of 1kHz tympanometry, at least in children younger than 7 months, but in the presence of hearing loss or an unclear result, 226Hz tympanometry is a good diagnostic complement.



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