Navegando por Palavras-chave "Otoacoustic emissions"

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    Audiologic results in patients with Moebius sequence
    (Elsevier B.V., 2007-09-01) Griz, Silvana; Cabral, Mariana; Azevedo, Graziela [UNIFESP]; Ventura, Liana; Universidade Federal de Pernambuco (UFPE); Universidade Federal de São Paulo (UNIFESP); Universidade Federal de Minas Gerais (UFMG); UNICAP
    Objective: Moebius sequence is a pathology not very well understood regarding to the hearing status. the main goal of this study was to describe the audiologic findings in children and adolescent who carry Moebius sequence.Method: Participated in this study 17 children and adolescent, with age ranging from 3 to 13 years old. Prior to the testing, the family answered an interview. It was realized external auditory canal inspection, and the hearing testing (auditory instrumentation, pure tone audiometry, speech audiometry, immittanciometric measures, and otoacoustic emissions) on the participants.Results: the auditory instrumentation evaluation (n = 6) was present in all participants. the pure tone audiometry presented normal hearing levels in 75.0% of the tested ears, one ear with conductive hearing toss, two ears with sensory neural hearing toss, and one ear with mixed hearing toss. the tympanometric measures showed Type A tympanograms in 63.0% of the ears, Type B in 11.1%, Type C in 18.5%, and Type As in 7.4%. T the acoustic reflexes measure showed contralateral. acoustic reflexes present in 50.0% of the ears, and ipsilateral acoustic reflexes present in 34.6% ears. the OAE results showed presence in 73.0%, for the TOAE, and 76.9% for the DPOAE.Conclusion: These results support the idea that there is no audiologic pattern for conductive hearing loss. the majority of the participants presented hearing in the normal range. Care should be taken in drawing conclusions regarding to auditory status of the individual with Moebius sequence, but what can be said is that not always those individuals present hearing toss. (C) 2007 Elsevier Ireland Ltd. All rights reserved.
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    Hemorragia peri-intraventricular: estudo do efeito de supressão nas vias auditivas.
    (Universidade Federal de São Paulo (UNIFESP), 2018-12-07) Sousa, Elaine Colombo [UNIFESP]; Azevedo, Marisa Frasson de [UNIFESP]; http://lattes.cnpq.br/3499728717437032; http://lattes.cnpq.br/5031701812524795; Universidade Federal de São Paulo (UNIFESP)
    OBJECTIVE: Determine the functioning of the efferent auditory system in premature newborns with intraventricular hemorrhage. METHOD: The study group was composed of 22 newborns with intraventricular hemorrhage and the control group was composed of 22 newborns without intraventricular hemorrhage, matched to the study group for gestational age, correct gestational age and sex. The groups were submitted to the study of otoacoustic emissions evoked by a transient stimulus and suppression in otoacoustic emissions (equipment ILOv6Otodynamics Ltda®) and the study of the auditory evoked potential with and without contralateral noise (equipment SmartEPIntelligent Hearing Systems®). RESULTS: Newborns with intraventricular hemorrhage exhibited a higher occurrence of central hearing alteration as well as a greater occurrence of the absence of the suppression in otoacoustic emissions and auditory evoked potential compared to the newborns without this condition. An association was found between central hearing alteration and a lower occurrence of suppression. Agreement was found between the suppression test on otoacoustic emissions and the suppression test on latency of the auditory evoked potential. CONCLUSION: Premature newborns with intraventricular hemorrhage have a greater occurrence of functional abnormality of the afferent auditory system, which can be effectively identified through an evaluation of the suppression of otoacoustic emissions evoked by a transient stimulus and the latency in the brainstem auditory evoked potential.