Revista Brasileira de Otorrinolaringologia | |
Prevalence of auditory neuropathy spectrum disorder in an auditory health care service | |
Penido, Rosimar Costa1  Isaac, Myriam Lima2  | |
[1] USP;Universidade Federal do Maranhão | |
关键词: evoked potentials; auditory; brain stem; hearing loss sensorineural; prevalence.; | |
DOI : 10.5935/1808-8694.20130077 | |
学科分类:医学(综合) | |
来源: Associacao Brasileira de Otorrinolaringologia e Cirurgia Cervicofacial | |
【 摘 要 】
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.
【 授权许可】
CC BY
【 预 览 】
Files | Size | Format | View |
---|---|---|---|
RO201910256195066ZK.pdf | 268KB | download |