Hearing Loss Facts
Epidemiology of Hearing
Hearing loss is a serious problem worldwide
48 million people in the U.S. have some degree hearing loss
278 million (2%) worldwide have disabling hearing loss
10-20% patients treated with aminoglycoside antibiotics develop hearing loss
60-80% treated with anti-cancer drug cisplatin develop hearing loss
60% recent U.S. war veterans suffer hearing loss
3:1000 children are born deaf or hard-of-hearing
50:1000 ICU babies have serious hearing loss
There is currently NO available drug that protects against any form of hearing loss
Hearing Loss and Balance Disorders Result from Damage to Hair Cells
Hair cells are the sensory receptors of the inner ear used to detect sound and perceive bodily motion for balance.
There is a direct relationship between hair cell loss and hearing loss and/or balance problems
Humans start with only ~15,000 hair cells in each cochlea.
When hair cells are lost due to mutation, disease, injury, or exposure to environmental toxins, they are not replaced.
Hair cells do not regenerate in mammals