Effects of otitis on hearing in dogs characterised by brainstem auditory evoked response testing
| Autor: | C. E. Eger, P. Lindsay |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
medicine.medical_specialty
Chronic otitis externa Hearing loss Audiology Abnormal ears Dogs Evoked Potentials Auditory Brain Stem otorhinolaryngologic diseases Animals Medicine Otitis Dog Diseases Ear canal Hearing Loss Functional Small Animals business.industry Hearing Tests medicine.disease Conductive hearing loss Auditory brainstem response medicine.anatomical_structure sense organs medicine.symptom business Hearing function |
| Zdroj: | Journal of Small Animal Practice. 38:380-386 |
| ISSN: | 1748-5827 0022-4510 |
| DOI: | 10.1111/j.1748-5827.1997.tb03490.x |
| Popis: | Hearing function was measured in normal dogs and in dogs with otitis using brainstem auditory evoked response testing. Data were obtained from 86 normal ears and from 105 ears with otitis, categorised into four degrees of severity. The data were analysed to illustrate the differences between the hearing function in the normal and abnormal ears and to estimate the degree of impairment associated with differing degrees of pathology. While severe hearing loss seemed to be present in the dogs with more severe otitis, only two individuals were identified as being totally deaf in the affected ears and no dogs were identified in which the cleaning and examination processes had caused damage to hearing function. Cleaning the ear canal produced measurable improvements in hearing in several dogs, indicating the profound effect of physical obstruction of the external ear canal by debris. It is concluded that most dogs with chronic otitis externa are not totally deaf and that the hearing impairment that does occur has the characteristics of conductive hearing loss. |
| Databáze: | OpenAIRE |
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