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Prevalência do espectro da neuropatia auditiva em um serviço de saúde auditiva / Prevalence of auditory neuropathy spectrum disorder in an auditory health care service
Penido, Rosimar Costa; Isaac, Myriam Lima.
  • Penido, Rosimar Costa; USP. Faculdade de Medicina de Ribeirão Preto. Departamento de Oftalmologia, Otorrinolaringologia e Cirurgia de Cabeça e Pescoço.
  • Isaac, Myriam Lima; USP. Faculdade de Medicina de Ribeirão Preto. Departamento de Oftalmologia, Otorrinolaringologia e Cirurgia de Cabeça e Pescoço.
Braz. j. otorhinolaryngol. (Impr.) ; 79(4): 429-433, jul.-ago. 2013. graf
Article in Portuguese | LILACS | ID: lil-681884
RESUMO
Oespectro da neuropatia auditiva (ENA) caracteriza-se pelo acometimento do nervo auditivo, associado à preservação da função das células ciliadas externas cocleares.

OBJETIVO:

Determinar a prevalência do ENA em sujeitos com perda auditiva neurossensorial (PANS).

MÉTODO:

Estudo retrospectivo realizado de 2010 a 2012, pela análise dos prontuários de 2.292 sujeitos com PANS. Foram coletados dados das avaliações otorrinolaringológica e audiológica, por meio da audiometria tonal e vocal, imitanciometria, Emissões Otoacústicas (EOAs) e Potencial Evocado Auditivo de Tronco Encefálico (PEATE). Critérios de inclusão presença das EOAs e/ou Microfonismo Coclear (MC); ausência ou alterações nas ondas do (PEATE) e ressonância nuclear magnética cerebral normal.

RESULTADOS:

Entre os 2.292 sujeitos com PANS, 27 (1,2%) apresentaram ENA, sendo 37% masculino e 63% feminino. Entre os sujeitos com ENA, 29,6% tinham PANS leve; 55,5% moderada; 7,4% grave e 7,5% profunda. Em relação à faixa etária, 14,8% estavam entre 0 e 20 anos, 33,4% entre 21 e 40 anos, 44,4% entre 41 e 60 anos e 7,4% acima de 60 anos.

CONCLUSÃO:

A prevalência do ENA neste estudo foi de 1,2% em sujeitos com PANS.
ABSTRACT
Auditory neuropathy spectrum disorder (ANSD) is characterized by impairment of the auditory nerve associated with preservation of outer hair cell function.

OBJECTIVE:

To establish the prevalence of ANSD in subjects with sensorineural hearing loss (SNHL).

METHOD:

This retrospective study was carried out between 2010 and 2012 and included the charts of 2,292 individuals with SNHL. Data from otolaryngological and audiological examinations based on pure-tone and speech audiometry, impedance tests, otoacoustic emissions (OAEs), and brainstem auditory evoked potentials (BAEPs) were collected. Inclusion criteria presence of OAEs and/or cochlear microphonic (CM); absent or altered BAEPs, and normal MRI scans of the brain.

RESULTS:

Twenty-seven (1.2%) of the 2,292 subjects with SNHL had ANSD (37% males; 63% females). Mild SNHL was seen in 29.6% of the individuals with ANSD; 55.5% had moderate SNHL; 7.4% had severe SNHL; and 7.5% had profound SNHL. In terms of age, 14.8% were aged between zero and 20 years, 44.1% were 41 to 60 years old, and 7.4% were above the age of 60.

CONCLUSION:

ANSD was seen in 1.2% of the individuals with SNHL included in this study.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Hearing Loss, Central / Hearing Loss, Sensorineural Type of study: Diagnostic study / Observational study / Prevalence study / Risk factors / Screening study Limits: Adolescent / Adult / Child / Child, preschool / Female / Humans / Infant / Male / Infant, Newborn Language: Portuguese Journal: Braz. j. otorhinolaryngol. (Impr.) Journal subject: Otolaryngology Year: 2013 Type: Article Affiliation country: Brazil

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Full text: Available Index: LILACS (Americas) Main subject: Hearing Loss, Central / Hearing Loss, Sensorineural Type of study: Diagnostic study / Observational study / Prevalence study / Risk factors / Screening study Limits: Adolescent / Adult / Child / Child, preschool / Female / Humans / Infant / Male / Infant, Newborn Language: Portuguese Journal: Braz. j. otorhinolaryngol. (Impr.) Journal subject: Otolaryngology Year: 2013 Type: Article Affiliation country: Brazil