INTRODUCTION The otoacoustic emission test is useful in monitoring hearing changes not yet detectable in pure-tone audiometry, as well as in monitoring cochlear damage caused by exposure to noise. OBJECTIVE To evaluate distortion product otoacoustic emissions in normal-hearing workers exposed to different occupational noise doses. MATERIALS AND METHOD This is a cohort prospective study perf...

OBJECTIVE To correlate the annoyance of tinnitus assessed by the Tinnitus Handicap Inventory and on a visual analogue scale with the evoked otoacoustic emission test result in tinnitus patients with normal hearing. STUDY DESIGN Case-control study. SETTING Public tertiary hospital. SUBJECTS AND METHODS The sample was initially based on a population of 80 subjects with tinnitus; 20 of them ...

OBJECTIVE To determine the most favorable age for detection of otoacoustic emissions in newborns and for repeated testing. METHODS Observational, retrospective, descriptive study in 2,567 newborns. RESULTS The incidence of any degree of hearing loss was 7 per thousand newborns. It was proportionately higher in the group that did not have otologic risk factors The distribution of otoacoustic...

BACKGROUND AND AIM The clinical utility of otoacoustic emissions as a noninvasive objective test of cochlear function has been long studied. Both transient otoacoustic emissions and distorsion products can be used to identify hearing loss, but to what extent they can be used as predictors for hearing loss is still debated. Most studies agree that multivariate analyses have better test performan...

UNLABELLED Exposure to loud music is increasing among young people, and so could be the number of hearing impairment cases in this population. Otoacoustic emission tests are sensitive in capturing the effects of exposure to noise, and allow the detection of early cochlear disorders. OBJECTIVE This study aims to look into the prevalence rates of injuries to outer hair cells in a population of ...

OBJECTIVES/HYPOTHESIS Otoacoustic emissions have frequently been used for newborn hearing screening. However, they have low specificities and high referral rates. The presence of amniotic fluid in the middle ear is one reason for these problems. The aim of this study was to determine the effects of human amniotic fluid on otoacoustic emissions and on middle-ear function. METHODS Forty-six chi...

This paper describes the implementation and performance of a nonlinear time-domain model of the cochlea for transient stimulation and human otoacoustic emission generation. The nonlinearity simulates compressive growth of measured basilar-membrane impulse responses. The model accounts for reflection and distortion-source otoacoustic emissions (OAEs) and simulates spontaneous OAEs through manipu...

OBJECTIVES In this study, we aimed to search whether gemcitabine - a commonly used antimetabolite type antineoplastic agent-has ototoxic effect. STUDY DESIGN AND SETTING An experimental animal research. SUBJECTS AND METHODS We evaluated the effect of gemcitabine on hearing through its possible effect on cochlea by using otoacoustic emission method on experimental rat model. For this purpose...