Conducting Hearing Loss and Its Management



Any disease process which interferes with the conduction of sound to reach cochlea causes conductive hearing loss. The lesion may lie in the external ear and tympanic membrane, middle ear or ossicles up to stapediovestibular joint.

The characteristics of conductive hearing loss are:

1. Negative Rinne test, i.e. BC>AC.

2. Weber lateral!sed to poorer ear.

3- Normal absolute bone conduction.

4. Low frequencies affected more.

5. Audiometry shows bone conduction better than airconduction with air-bone gap. Greater the air-bone gap,more is the conductive loss.

6. Loss is not more than 60 dB.

7. Speech discrimination is good.


Management