Desencadeamento e progressão de perda auditiva na Síndrome Congênita do vírus Zika: relatos de casos

Abstract

Babies exposed to Zika virus during pregnancy have a risk indicator for hearing impairment, and hearing monitoring is required, and those with “Neonatal Hearing Screening” (NHS) have audiological diagnosis. Therefore, the present study aimed to characterize the audiological findings of two patients with exposure to Zika virus, describing the type, degree and audiometric configuration, as well as characterize the audiological picture regarding the onset and progression of hearing loss on Zika virus exposure. comparing audiological results in the first 4 years of life. The sample consisted of two children assisted in the project listen from 2015 to November 2019, and anamnesis was performed to obtain information about the pre, peri and postnatal period and, later, the inspection of the external acoustic meatus, in order to to check if there were conditions to continue the following procedures: hearing screening, transient and distortion product otoacoustic emissions, tympanometry, acoustic reflex testing, visual reinforcement audiometry, brainstem auditory evoked potential, and specific frequency via airway and bone pathway. From the findings it was found that the children in this study presented triggering and progression of hearing disorders. S2 identified with mild sensorineural hearing loss and right ascending configuration and inverted U on the left, and S1 with onset of hearing impairment on the right and mild hearing loss and left ascending audiometric configuration.