Timpanometry

Timpanometry is a diagnostic test used to evaluate the function of the middle ear. It measures how well the eardrum moves and how the pressure in the middle ear space changes. The test is non-invasive and typically takes only a few minutes to perform. During the procedure, a small probe is gently inserted into the ear canal. This probe emits a sound and measures how the eardrum vibrates in response to changes in air pressure. The results are displayed on a graph called a tympanogram.

The tympanogram can reveal several important findings. A normal tympanogram indicates healthy middle ear function. An abnormal tympanogram can suggest conditions such as fluid in the middle ear (otitis media with effusion), a perforated eardrum, or ossicular chain discontinuity. It can also help assess the patency of a ventilation tube if one has been surgically placed. Timpanometry is often used in conjunction with audiometry (hearing tests) to provide a comprehensive evaluation of hearing. It is a valuable tool for audiologists, otolaryngologists, and pediatricians in diagnosing and managing ear-related conditions, particularly in infants and young children who cannot reliably participate in behavioral hearing tests. The test is painless and requires no special preparation.