[Otoacoustic emissions in sudden deafness]. / Emisiones otoacústicas en sorderas súbitas.

ABSTRACT

UNLABELLED The idiopathic type of sudden deafness installed in few hours become evident in audiometry as deafness perceptive of loud tones, neurosensorial deafness of loud tones and completely of treble sounds or cofosis. The otoacoustic emissions are modificated in sudden deafness. OBJECTIVES: To know and describe how are the otoacoustic emissions and the audition in sudden deafness. To analyse a possible relationship between audition, otovestibular and clinic participation with the parameters of the graphoelements of the otoacoustic emissions. PATIENTS AND METHODS: We study 52 patients with diagnostic of sudden deafness with a backward, observational and descriptive and analytic design of the results. Patients with ORL diagnostic were selectioned and audiometric, vestibular test and otoacoustic emissions were made. RESULTS: In our research we find quantitative and qualitative variations statistically significative in the otoacoustic emissions design. Its presence in the different frequencies is altered or is missing in any case of sudden deafness in which there are damages of the inner ear. There is not associative correlation between the alterations of otoacoustic emissions and the kind of sudden deafness, neither its provoking factors, anigiohematical, viral or traumatic. DISCUSSION AND CONCLUSIONS: There are modifications of the otoacoustic emissions but not specificals or the kinds of sudden deafness and its provoking factors. Another publications agree and underwrite our discoveries. We thought that our aportation with this study is fundamental for the clinic application of the otoacoustic emissions in the processes of sudden deafness.