Tympanometry

Tympanometry is a medical test used to detect problems in the middle ear. It is a non-invasive procedure that measures the movement of the tympanic membrane in response to changes in air pressure. This test is often used in conjunction with pure-tone audiometry to diagnose hearing loss or damage.

Procedure

The procedure for tympanometry involves inserting a probe into the ear canal. This probe changes the air pressure in the ear and generates a tone. The device then measures the sound that bounces back from the ear. The results are recorded on a graph called a tympanogram.

Uses

Tympanometry is used to help diagnose various conditions related to the middle ear. These include:

• Otitis media: An infection or inflammation of the middle ear.
• Eustachian tube dysfunction: A blockage or malfunction of the tube that connects the middle ear to the back of the nose.
• Tympanic membrane perforation: A hole or tear in the eardrum.
• Otosclerosis: An abnormal growth of bone in the middle ear.

Results

The results of tympanometry are usually represented on a graph called a tympanogram. This graph shows the ear's response to changes in pressure. The shape and position of the peak of the graph can provide information about the condition of the middle ear.

See also

• Audiometry
• Otoacoustic emission
• Pure tone audiometry