Navegando por Palavras-chave "emissões otoacústicas espontâneas"

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    O cigarro como um fator de risco para alterações auditivas
    (Associação Brasileira de Otorrinolaringologia e Cirurgia Cervicofacial, 2009-12-01) Paschoal, Carolina Pamplona; Azevedo, Marisa Frasson de [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    Smoking is a public health concern and we are still unsure of its relation with auditory problems. AIM: To study the effects of cigarette smoking in auditory thresholds, in otoacoustic emissions and in their inhibition by the efferent olivocochlear medial system. MATERIALS AND METHODS: 144 adults from both genders, between 20 and 31 years of age, smoking and non-smoking individuals were submitted to conventional and high-frequency audiometry, transient stimuli otoacoustic emissions and suppression effect investigation. RESULTS: smokers presented worse auditory thresholds in the frequencies of 12.500Hz in the right ear and 14,000 kHz in both ears. Regarding the otoacoustic emissions, smokers group presented a lower response level in the frequencies of 1,000Hz in both ears and 4,000Hz in the left ear. Among smokers there were more cases of cochlear dysfunction and tinnitus. CONCLUSION: Our results suggest that cigarette smoking has an adverse effect on the auditory system.
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    Nível de resposta das emissões otoacústicas evocadas por estímulo transiente em lactentes com refluxo gastroesofágico
    (Fundação Otorrinolaringologia, 2011-09-01) Camboim, Elizângela Dias [UNIFESP]; Scharlach, Renata Coelho [UNIFESP]; Farias, Kelvânio Vitório De; Oliveira, Lívia Karla Gadêlha De; Vasconcelos, Dênis; Azevedo, Marisa Frasson de [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); Universidade Estadual de Ciências da Saúde de Alagoas Faculdade de Fonoaudiologia de Alagoas
    INTRODUCTION: The transient-evoked otoacoustic emissions (TEOAE) have been the most widespread technique to perform neonatal hearing screening. Scrutinizing their measures by way of an association with other alterations that may impair the infant's auditory system is important. OBJECTIVE: Analyze the incidence and the response levels of the transient-evoked otoacoustic emissions on infants having a physiological gastroesophageal reflux disease (GERD). METHOD: A prospective study was performed at Santa Juliana Hospital's Otorhinolaryngology Department. 118 prematurely-born and timely-born babies, from newly-born to 6 months old, who were sent by pediatricians and gastropediatricians, participated in the study and they were divided into two groups: Study Group: 63 infants clinically diagnosed of a physiological gastroesophageal reflux disease, and Control Group: 55 infants without a physiological gastroesophageal reflux. The peripheral hearing function was evaluated by both transient-evoked otoacoustic emissions and otoscopy examinations performed by an otorhinolaryngologist. RESULTS: The average response levels of the transient-evoked otoacoustic emissions were higher in the non-reflux group for frequency bands of 2kHz, 2. 5kHz, 3kHz, 3. 5kHz and 4. 5kHz bilaterally, with a statistically significant difference, achieving the average values of 7. 71dB and 7dB in the right ear found in the frequency bands of 2 and 4kHz, respectively. CONCLUSION: There was a lower incidence and a lower response level of the transient-evoked otoacoustic emissions in physiological gastroesophageal reflux children in comparison with children having no reflux.
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    O papel do sistema olivococlear medial em crianças portadoras de TDAH
    (Associação Brasileira de Otorrinolaringologia e Cirurgia Cervicofacial, 2012-06-01) Pereira, Valéria Reis Do Canto; Feitosa, Maria Ângela Guimarães; Pereira, Luiz Henrique Mourão Do Canto; Azevedo, Marisa Frasson de [UNIFESP]; Universidade de Brasília Instituto de Psicologia Departamento de Processos Psicológicos Básicos; Ministério da Ciência e Tecnologia; Universidade Federal de São Paulo (UNIFESP)
    Attention deficit hyperactivity disorder (ADHD) patients show, as one of the main symptoms, an attentional impairment. Selective attention in the hearing process is the ability to understand speech in a noisy environment, which can be evaluated by several methods. One of the main approaches is the functioning of the Medial Olivocochlear Efferent System, which can be accessed by Transient-Evoked Otoacoustic Emissions (TOAE). OBJECTIVE:This study aimed at evaluating the suppression effect of contralateral noise on TOAE in ADHD (study group) and normal subjects (control group). Study Design: Case-control study. MATERIAL AND METHODS: A study with 20 children distributed in two, age- and gender-matched groups. RESULTS: No differences were found in TOAE responses between the two groups, with and without noise. CONCLUSIONS: We conclude that there were no functional differences in the Medial Olivocochlear Efferent System in the two groups analyzed.