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Etiologic Incidence in Adults Users of Cochlear Implant Multichannel at Clinical Hospital of Ribeirão Preto
Introduction: Knowing the main etiological agents of hearing loss allows tracing a disease profile of deafness, and thus, supporting the establishment of public health policies.
Objective: The study aimed to determine the incidence of etiological factors of severe/profound sensorineural hearing loss in adults implanted in the Cochlear Implant Program at the Hospital das Clínicas of Ribeirão Preto.
Materials and Methods: A retrospective study was done on the basis of an analysis of medical records of 52 adults undergoing cochlear implant surgery from April 2004 to June 2013 at the university hospital of the Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo. Data regarding the age at surgery and etiology of hearing loss were collected.
Results: It was possible to observe the prevalence of idiopathic etiology in 30.76% of the cases. The second most frequent cause was meningitis at 19.23%, followed by 17.30% of the cases with infectious diseases. It is important to note that 63.46% of patients had postlingual hearing impairment.
Conclusion: According to the results obtained, it can be stated that the etiology of increased incidence among adults was idiopathic. To obtain better prognosis, we emphasize on the importance of early intervention in cases of meningitis.