Table 1.
Types of peripheral hearing loss
Deafness type | Possible cause(s) | Frequency |
---|---|---|
Hereditary congenital sensorineural | White pigmentation gene (W) | Common |
Hereditary congenital conductive | Not reported in cats | – |
Hereditary late-onset sensorineural | Not reported in cats | – |
Hereditary late-onset conductive | Not reported in cats | – |
Acquired congenital sensorineural | Prenatal ototoxic drug exposure | Uncommon |
Acquired congenital conductive | Cartilage defect, canal atresia | Uncommon |
Acquired late-onset sensorineural | Otitis interna, drug toxicity, presbycusis, environmental noise | Moderate |
Acquired late-onset conductive | Otitis externa/media, canal stenosis | Moderate |