نتایج جستجو برای: Otoacoustic emissions

تعداد نتایج: 65780  

Journal: :Journal of the American Academy of Audiology 2009
Shlomo Silman Michele B Emmer Carol A Silverman

PURPOSE To present a case study in order to alert clinicians to the possibility of occurrence of intermodulation distortion during otoacoustic emissions testing that arises from the cavity formed by the external auditory meatus and tympanic membrane rather than from the inner ear, compromising the reliability and validity of otoacoustic emissions testing. RESEARCH DESIGN Prospective case stud...

2008
Patrick N. Plyler Erin L. Plyler

Otoacoustic emissions are commonly present in cases of auditory neuropathy/dys-synchrony; however, otoacoustic emissions are absent or disappear in approximately one-third of patients with the disorder. Failure to identify AN/AD patients with absent otoacoustic emissions may result in improper diagnosis and management. The purpose of this article is to present fi ndings from a case of auditory ...

2015
Giovanna Cesar Silva Camila Ribas Delecrode Adriana Tahara Kemp Fabiana Martins Ana Claudia Vieira Cardoso

Introduction The most commonly used method in neonatal hearing screening programs is transient evoked otoacoustic emissions in the first stage of the process. There are few studies comparing transient evoked otoacoustic emissions with distortion product, but some authors have investigated the issue. Objective To correlate the results of transient evoked and distortion product otoacoustic emissi...

Journal: :The international tinnitus journal 2000
B Franz P Altidis B Altidis

Neonates younger than the age of 12 weeks (10 full-term, 20 preterm) had an audiological assessment consisting of brainstem audiometry, tympanometry, transiently evoked otoacoustic emissions, and spontaneous otoacoustic emissions with contralateral white noise stimulation. Results from brainstem audiometry, tympanometry, and transiently evoked otoacoustic emissions suggested normal middle ear f...

2016
Mariana Aparecida Soares Seisse Gabriela Gandolfi Sanches Carla Gentile Matas Alessandra Giannella Samelli

OBJECTIVE To determine whether there is any influence of systemic arterial hypertension on the peripheral auditory system. METHODS This was a cross-sectional study that investigated 40 individuals between 30 and 50 years old, who were divided into groups with and without systemic arterial hypertension, using data from high-frequency audiometry, transient-evoked otoacoustic emissions and disto...

Journal: :international journal of occupational hygiene 0
parvin nassiri department of occupational health engineering, school of public health, tehran university of medical sciences, tehran, iran sajad zare department of occupational health, school of public health, kerman university of medical sciences, kerman, iran mohammad reza monazzam esmail pour department of occupational health engineering, school of public health, tehran university of medical sciences, tehran, iran akram pourbakht department of audiology, school of rehabilitation, iran university of medical sciences, tehran, iran kamal azam department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, iran taghi golmohammadi department of biochemistry, school of medicine, tehran university of medical sciences, tehran, iran

excessive exposure to noise can lead to noise-induced hearing loss. otoacoustic emissions affect the microscopic biomechanical activities of healthy outer hair cells. the present study aimed at assessing the influence of various sound pressure levels on distortion product otoacoustic emissions (dpoaes) in rats. to this end, 27 adult male rats with an age range of 3 to 4 months and a weight of 2...

Journal: :medical journal of islamic republic of iran 0
shaghayegh omidvar department of audiology, school of rehabilitation sciences, iran university of medical sciences, tehran, iran. zahra jafari department of rehabilitation basic science, school of rehabilitation sciences, iran university of medical sciences, tehran, iran. saeid mahmoudian ent and head & neck research center, iran university of medical sciences, tehran, iran. mehdi khabazkhoob department of medical surgical nursing, school of nursing and midwifery, shahid beheshti university of medical sciences, tehran, iran. mohsen ahadi department of audiology, school of rehabilitation sciences, iran university of medical sciences, tehran, iran. address: shahnazari st, mirdamad blvd, tehran, iran. nasrin yazdani otorhinolaryngology research centre, amiralam hospital, tehran university of medical sciences, tehran, iran.

background: the possible role of cochlear function in tinnitus generation is still a matter of debate. to assess the role of outer hair cell dysfunction in tinnitus and its possible relationship with ultra-high frequency (uhf) hearing sensitivity, transient evoked otoacoustic emissions (teoae) and uhf hearing thresholds were investigated in normal hearing individuals with and without tinnitus. ...

Journal: :Otolaryngologia polska = The Polish otolaryngology 2007
Grazyna Lisowska Grzegorz Namysłowski Bogusława Orecka Maciej Misiołek Wojciech Scierski Eugeniusz Czecior

INTRODUCTION The objective of this study was to measure age-related changes of otoacoustic emissions level in subjects with normal hearing in tonal audiometry. MATERIAL AND METHODS Click evoked otoacoustic emissions (CEOAEs) and distortion-product otoacoustic emissions (DPOAEs) were recorded in 146 (n = 292 ears) subjects. Otoacoustic emissions were recorded in response to nonlinear clicks an...

Journal: :Otolaryngologia polska = The Polish otolaryngology 2007
Grzegorz Namysłowski Grazyna Lisowska Maciej Misiołek Wojciech Scierski Bogusława Orecka Eugeniusz Czecior

INTRODUCTION The objective of this study was to measure gender-related changes of otoacoustic emissions level in subjects with normal hearing in tonal audiometry. MATERIAL AND METHODS Click evoked otoacoustic emissions (CEOAEs) and distortion-product otoacoustic emissions (DPOAEs) were recorded in 146 (n = 292 ears) subjects. Otoacoustic emissions were recorded in response to nonlinear clicks...

2001
Jonas Brännström Johannes Lantz

During recent years, much attention has been paid otoacoustic emissions in the clinical audiological practice. The received view locates their origin in the cochlea, more precisely in the outer hair cells. It is, however, still uncertain if there is an interaction between the ears regarding otoacoustic emissions. Earlier findings suggest an interaction at the level of the olivocochlear bundle. ...

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