Types of hearing loss
Types of hearing loss https://urgentcarenearmetx.com/wp-content/themes/corpus/images/empty/thumbnail.jpg 150 150 Tony Guo Tony Guo https://secure.gravatar.com/avatar/aa9bbdf8f1e6bbf534778ecea7c0c925?s=96&d=mm&r=g- Tony Guo
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Types of hearing loss
- Conductive hearing loss
- Sound transmission to inner ear impaired
- Patients actually hear better in noisy environments
- Patient often speaks softly
- Identify and treat cause
- Suggest hearing aid
- Caused by
- Otitis media with effusion
- Impacted cerumen
- Perforation of TM
- Otosclerosis
- Narrowing of the external auditory canal
- Sound transmission to inner ear impaired
- Sensorineural hearing loss
- Results in ability to hear sound but inability to understand speech
- Can lead to misunderstanding by others
- Hearing aids make sounds louder but not clearer
- Caused by
- Impairment of the inner ear
- Vestibulocochlear nerve (CN VIII) damage
- Congenital and hereditary factors
- Noise trauma
- Aging (presbycusis)
- Meniere’s disease
- Ototoxic drugs
- Aspirin
- NSAIDs
- Antibiotics
- Loop diuretics
- Chemotherapy drugs
- Results in ability to hear sound but inability to understand speech
- Mixed hearing loss
- Central and functional hearing loss
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- Deafness in other family members often present
- Can be psychologically or emotionally related
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- Sudden hearing loss
- Sudden deafness
- Unexplained, rapid loss of hearing
- Usually affects just one ear
- Medical emergency
- Sudden deafness
- Tinnitus
- Perception of noise without an actual source of sound
- “Ringing in the ears”
- May be first symptom of hearing loss
- Most commonly caused by noise
- More than 200 drugs cause tinnitus
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