PURPOSE To analyze the findings for Evoked Otoacoustic Emissions (EOEA) and suppression effect in workers with normal hearing exposed to pesticides and noise . METHODS The sample consisted of 55 participants with normal hearing, with ages ranging from 18 to 35 years, divided into two groups: one group exposed to noise and pesticides (GRA) and a control group (CG). The GRA was composed of 25 p...

Background. Sensorineural hearing loss after procedures including extracorporeal circulation and hypothermia is greater than general population. Mild hypothermia has a protective role on cochlea; however, deep hypothermia may result in cochlear injury. This research aimed at assessing auditory function in children after open heart surgery in relation to different hypothermic techniques. Subject...

UNLABELLED Manipulation of auditory stimuli affect the ABR evoked potentials and aid the diagnosis, particularly in auditory neuropathy patients. Some patients with auditory neuropathy lose evoked otoacoustic emissions over time; in these cases, comparing responses to rarefaction and condensation clicks, and decreasing the stimulus rate can show an extended cochlear microphonism or yield an imp...

Mani pulation of auditory stimuli affect the ABR evoked potentials and aid the diagnosis, particularly in auditory neuropathy patients. Some patients with auditory neuropathy lose evoked otoacoustic emissions over time; in these cases, comparing responses to rarefaction and condensation clicks, and decreasing the stimulus rate can show an extended cochlear microphonism or yield an improved elec...

OBJECTIVE The objective of this study was to evaluate the accuracy and cost effectiveness of three different methods of hearing screening in newborns. DESIGN A prospective, randomized cohort design was used. One hundred and five newborns were tested in this preliminary study. SETTING The study was conducted in a tertiary care hospital setting in both the well baby and special care nurseries...

Otoacoustic emissions (OAEs) of all types are widely assumed to arise by a common mechanism: nonlinear electromechanical distortion within the cochlea. In this view, both stimulus-frequency (SFOAEs) and distortion-product emissions (DPOAEs) arise because nonlinearities in the mechanics act as "sources" of backward-traveling waves. This unified picture is tested by analyzing measurements of emis...

UNLABELLED Characteristics of how external and middle ear resonance frequency can impact the capture of otoacoustic emissions. AIM to study the impact of external and middle ear resonance frequency in otoacoustic emissions. STUDY DESIGN Prospective, clinical, series study. MATERIALS AND METHODS Microphone-probe measurements were made in the external ear, together with multifrequency timpa...