| Autor: |
Arunraj Karuppannan, Animesh Barman, Nerale Maraiah Mamatha |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Journal of International Advanced Otology, Vol 20, Iss 2, Pp 158-163 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2148-3817 |
| DOI: |
10.5152/iao.2024.231048 |
| Popis: |
BACKGROUND: Middle ear effusion (MEE) and tympanic membrane perforation (TMP) are difficult to distinguish using existing immittance techniques, necessitating the use of a separate test battery. Wideband absorbance (WBA) tympanometry is a new enhanced technique, and studies have shown a reliable WBA pattern to identify middle ear disorders. Thus, the study was performed to determine the WBA across the frequencies in ears with MEE, TMP, and compared with normal hearing individuals. METHODS: A total of 109 ears with TMP and 122 ears with MEE in the age range of 22-50 years were compared with 150 normal hearing ears. Otoscopic examination, middle ear fluid monitor, pure tone audiometry, and immittance measurements were performed to categorize the subject ears into groups. The absorbance levels at peak and ambient pressure across one-third octave frequencies in each group were statistically evaluated at α=0.05. RESULTS: Wideband absorbance for the normal ear group was lowest at low (3000 Hz) and highest at midfrequency regions (800-3000 Hz). The MEE group had significantly lower WBA at all frequencies, and TMP group showed reduced WBA at low and mid-frequencies ( |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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