Recently, there has been more varying normative data for specific populations, and the interpretation of tympanogram results can be based on the normative data that your institution uses. These are usually interpreted based on the Liden (1969)¹ and Jerger (1970)² classifications and Margolis and Heller (1987)³ normative data or the British Society of Audiology 4 normative data. The tympanogram depicts tracings and numeric data obtained from the tympanometry measurement system. ![]() ![]() Thirdly, it reveals middle-ear pressure, also known as the tympanometric peak pressure, and an indicator for eustachian tube dysfunction and other problems). Secondly, it indicates compliance of the tympanic membrane or middle ear (an indicator for fluid in the middle ear, ossicular discontinuity, otosclerosis - among others). ![]() Firstly, it shows the patient’s ear canal volume, an indicator for perforated tympanic membrane or impacted cerumen. The graphical representation of the middle-ear function, measured through tympanometry, is known as a tympanogram, and it is rich in useful data.
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