Tympanometry – Meaning, Operation, Classes, and Prevention

Tympanometry is a hearing test which is performed to analyze whether your hearing disorder can be resolved by Hearing Aids or some specific medical treatment, or we could say tympanometry tests are done to check the vulnerability of your hearing disorder. You can find a number of tests related to Hearing Loss in which Tympanometry is done basically for the middle ear canal. It offers the probe tone of 226 Hz which is advantageous while measuring adult ear as its stiffness dominates at any frequency by reducing an effect of mass and friction.


What is Tympanometry?

Tympanometry Test was discovered by Terkildsen et al in 1950 in order to measure middle ear pressure and mobility of tympanic membrane. The test results are shown in a graph called Tympanogram and it has contributed a lot to in the history of medical science and now has become the routine part of Audiological tests.

Tympanometry evaluates the hearing deficiency by the medium of the tympanic membrane. These membranes are those thin tissues which separate the middle and outer ear segments from each other. Tympanic membrane helps to measure the fluid generated over a period of time by the infants and these fluids help also to examine conduction bone by generating air pressure changes in an ear canal.

Need of Tympanometry

Tympanometry is an objective test which measures the amount of energy passed through our middle ear and gives the distinctive difference between sensorineural and conductive hearing loss. Tympanometry consists of air pumps, a probe with a loudspeaker, a manometer and a microphone which are harmless testing technique. This test is performed to measure the amount of fluid obtained in children’s ear as it’s not easy to diagnose middle ear in kids. This test helps in determining various factors such as:

  • The condition of the eardrum and tympanic membrane.
  • Diagnosis of otitis media by demonstrating the presence of a middle ear effusion.
  • Eustachian tube dysfunctions, which controls the pressure within the middle ear.
  • Tympanometry tests are necessary to be performed after otoscopy test.
  • This test provides graphics and numeric data interpretation of energy, pressure, and volume in an ear canal.
  • It’s easier to find several ear canal and eardrum abnormalities.
  • Amount of fluids in middle ear canal.

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Palak Patel

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