Tympanometry
A test that measures the function of the middle ear. Tympanometry works by varying the pressure within the ear canal and measuring the movement of the eardrum (tympanic membrane).
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- Tympanoplasty
A surgical operation to correct damage to the middle ear and restore the integrity of the eardrum.
- Tympanostomy tube
A small plastic tube inserted into the eardrum to keep the middle ear aerated for a prolonged period of time. These ventilating tubes usually remain in place for 6 months to several years. Eventually, most will move out of the eardrum (extrude) and fall out into the ear canal. Also called ear tubes.
- Tympanum
The cavity of the middle ear, which is separated from the outer ear by the eardrum.
- Tympany
A hollow drum-like sound that is produced when a gas-containing cavity is tapped sharply. Tympany is heard if the chest contains free air (pneumothorax) or the abdomen is distended with gas. Also known as tympanites.
- Type I error
The statistical error (said to be “of the first kind” or alpha error) made in testing an hypothesis when it is concluded that a treatment or intervention is effective when it really is not. Sometimes referred to as a false positive.