Tympanometry
What is Tympanometry
Tympanometry is a test used to evaluate the function of the eardrum (tympanic membrane) and the middle ear. It measures the response of the eardrum to changes in air pressure in the ear canal. It can detect problems caused by middle ear disorders such as glue ear, ear infection (otitis media), accumulation of fluid in the middle ear or fluid in the Eustachian tube.
Preparation for Tympanometry
No special preparation is required for tympanometry. The only thing you should do is to keep your ears clean before the test. If you wear earplugs, hearing aids, or any other type of ear device, remove them before the test.
Procedure of Tympanometry
Tympanometry is a simple procedure that takes a few minutes. The person performing the test inserts a soft, cone-shaped probe into the ear canal. This probe applies gentle pressure to the eardrum, changing the pressure in the middle ear. As the pressure is changed, a computer records patterns on a graph showing how the eardrum moved in response to the pressure change.
Types of Tympanometry
There are three types of tympanometry: static, reflex, and maximum pressure tests. The static test records the static pressure of the ear canal, without any changes. The reflex test varies the air pressure applied to the eardrum to see how it moves as the pressure changes. The maximum pressure test is used to measure the amount of pressure the eardrum can withstand before it moves or is pushed out of its normal resting position.
Risks of Tympanometry
Tympanometry is harmless and discomfort-free. There are no risks associated with it.
Why is Tympanometry Used?
Tympanometry is used to diagnose and evaluate the condition of the middle ear and to detect fluid or any other type of problems associated with the Eustachian tube. It can also be used to detect problems with the stapes (the small bone in the middle ear) and to measure the air pressure in the middle ear.
When is Tympanometry Performed?
Tympanometry is usually performed when a person has symptoms of an ear infection, persistent ringing in the ears (tinnitus), or other suspected middle ear condition. It may also be used to monitor the effects of ear tubes inserted to treat recurrent ear infections.
