Temat: wideband tympanometry - Katalog OPAC zbiorów

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Tytuł:: The impact of regular diving on the condition of the middle ear
Autorzy:: Stieler, Olgierd
Loba, Wawrzyniec
Gawęcki, Wojciech
Urbaniak-Olejnik, Marta
Majewska, Anna
Warchoł, Wojciech
Hojan-Jezierska, Dorota
Powiązania:: https://bibliotekanauki.pl/articles/2093855.pdf
Data publikacji:: 2021-12-13
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: tympanometry
middle ear
high pressure
wideband tympanometry
scuba diving
acoustic impedance tests
Opis:: ObjectivesIt is generally held that exposure to both high-pressure and long-lasting contact with water makes diving a potentially hazardous sports activity as far as the ears are concerned. There is a number of research investigating the condition of the middle ear in a short period following diving; however, the knowledge regarding the long-term effects of regularly repeated diving remains limited.Material and methodsThe aim of this study is to evaluate the function of the middle ear after a diving season in a group of 31 adults diving regularly (1–17 years) by means of the following methods: 1) interview, 2) otoscopy, 3) pure tone audiometry, 4) classic tympanometry, and 5) wideband tympanometry.ResultsPeriodic problems with pressure equalization in the middle ear were observed in 12 individuals (38.7%). In all the analyzed cases, the authors found a normal condition of the external auditory canal and the tympanic membrane in otoscopy, normal hearing in pure tone audiometry, curve type A, and normal gradient in both classic and wideband tympanometry. Conclusions: Safe diving (according to safety precautions) does not have any long-term negative effects on the condition of the middle ear. However, these observations should be verified in a larger group of divers.
Źródło:: International Journal of Occupational Medicine and Environmental Health; 2021, 34, 6; 779-788
1232-1087
1896-494X
Pojawia się w:: International Journal of Occupational Medicine and Environmental Health
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Wideband tympanometry – a new method to evaluate the middle ear
Autorzy:: Niemczyk, Elżbieta
Lachowska, Magdalena
Powiązania:: https://bibliotekanauki.pl/articles/1401761.pdf
Data publikacji:: 2016
Wydawca:: Index Copernicus International
Tematy:: Wideband tympanometry
impedance audiometry
hearing loss
otosclerosis
otitis media with effusion
tympanic membrane perforation
Opis:: Wideband tympanometry (WBT) is a relatively new assessment method of the middle ear. Using wideband click WBT provides measurements at frequencies from 226–8000 Hz with more diagnostic information without any additional effort. The traditional impedance audiometry offers information acquired only at a single frequency (mostly 226 Hz or 1000 Hz). WBT provides both traditional tympanograms and tympanograms at multiple frequencies as well as new information that is retrieved from resonance frequency, absorbance graph, and averaged wideband tympanogram. WBT seems to be more specific and sensitive method to evaluate a conductive hearing loss than traditional impedance audiometry, and might be helpful in diagnosing such pathologies as: middle ear effusion, negative middle ear pressure, otosclerosis, ossicular discontinuity, tympanic membrane perforation, upper semicircular canal dehiscence. WBT seems to be a very promising additional diagnostic tool used for hearing screening in newborns and diagnosing minor middle ear pathologies that disturb otoacoustic emissions. WBT is considered to be a better predictor for middle ear problems in newborns and infants than 1000 Hz tympanometry. The wideband absorbance measurements can be performed at ambient as well as peak pressure. Ambient pressure absorbance measurements do not require any pressure changes in the external auditory canal, thus it seems to be a perfect method for post-surgical monitoring of middle ear condition. However, WBT has its limitations, it presents large inter-subject variability in both absorbance graphs and resonance frequency values, and therefore WTB should be more extensively studied. WBT see
Źródło:: Polski Przegląd Otorynolaryngologiczny; 2016, 5, 1; 65-74
2084-5308
2300-7338
Pojawia się w:: Polski Przegląd Otorynolaryngologiczny
Dostawca treści:: Biblioteka Nauki

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