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Collapse of the Ear Canal During Audiometry | JAMA ...
https://jamanetwork.com/journals/jamaotolaryngology/fullarticle/1766234
Functional hearing loss may be defined as a decrease in measured auditory acuity without a known organic basis. Usually a diagnosis of functional hearing loss is made when there are significant intratest or intertest disagreements among audiometric assessments of a person's hearing acuity, and medical examination reveals that the discrepancies cannot be attributed to …
Correcting for ear canal collapse during audiometry
https://pubmed.ncbi.nlm.nih.gov/6628851/
The hearing thresholds of 20 subjects with normal hearing and normal ear canals and two subjects with collapsible ear canals were measured at octave frequencies from 250 to 8000 Hz under standard transducers (TDH-39) fitted with standard cushions (MX-41/AR) and experimental cushions (Telephonics 266CIII).
Audiometric Management of Collapsible Ear Canals | JAMA ...
https://jamanetwork.com/journals/jamaotolaryngology/fullarticle/603530
A small ear insert was relatively ineffective in neutralizing the effects of collapsible ear canals. It was concluded that sound-field audiometry or a circumaural earphone are useful for assessing patients with collapsible ear canals and that earmolds, ear inserts, or polyethylene tubing are inappropriate solutions to the problem.
Hearing Disorders and Audiogram Interpretation
https://compendiumapp.com/user_uploads/000/001/553_oJ5MHz_Hearing_Disorders_and_Audiogram_Interpretation.pdf
The effects of a collapsing ear canal. The audiogram on the left shows a mild conductive loss when traditional earphones are used. The audiogram on the right shows how air conduction thresholds return to normal levels for the same ear when an insert earphone is used.
Misdiagnosis of hearing loss due to ear canal collapse: a ...
https://www.cambridge.org/core/journals/journal-of-laryngology-and-otology/article/misdiagnosis-of-hearing-loss-due-to-ear-canal-collapse-a-report-of-two-cases/7CD526526FA7C42D97C3C6E96411D73D
Collapse of the external auditory meatus during audiometry can lead to spuriously increased hearing thresholds being obtained, particularly at high frequencies, and may simulate conditions such as noise-induced hearing loss, presbyacusis and retrocochlear pathology. Consequently, inappropriate investigations and management may be undertaken.
Bilateral conductive hearing loss due to collapsed ear ...
https://medcraveonline.com/JOENTR/JOENTR-04-00110.pdf
Collapsed ear canals have been reported as a cause of inaccuracies during audiometric testing.1 Were the first to describe the condition in 1961, when they noted a 15-30dB improvement in air conduction thresholds of two patients, when the ear canals were held patent during audiometry by plastic inserts1,2 reported that ear canal collapse
False Unilateral Conductive Hearing Loss Due to Collapsed ...
https://juniperpublishers.com/gjo/pdf/GJO.MS.ID.555991.pdf
Sometimes, collapse of the external auditory meatus can cause misdiagnose during audiometry. So, inappropriate investigations and management may be undertaken. This report presents a case of ear canal collapse in an elderly and demonstrates the value of impedance audiometry in cases of collapse of the external ear canal and the way to overcome
What can be done for a collapsed ear canal? - AskingLot.com
https://askinglot.com/what-can-be-done-for-a-collapsed-ear-canal
Also asked, what is a collapsed ear canal? A decrease in air conduction sensitivity may be produced in some individuals by pressure exerted on the pinna during audiometric testing. The pressure of the earphone against the pinna may result in the partial closure or complete collapse of the external auditory meatus.
Picture of Collapsed External Auditory Canal ...
http://www.ghorayeb.com/CollapsedEarCanal.html
Picture of collapsed external auditory meatus in an elderly patient. Collapse of the external auditory canal is very common in the elderly (up to 41% in a study by Ronald Show et al.). The collapse usually involves the outer portion of the canal, right at the anterior edge of the conchal cartilage. It is is a major cause of cerumen impaction ...
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