What is asymmetric bilateral sensorineural hearing loss?
What is asymmetric bilateral sensorineural hearing loss?
Asymmetrical sensorineural hearing loss (ASNHL) is defined as binaural difference in bone conduction thresholds of >10 dB at two consecutive frequencies or >15 dB at one frequency (0.25–8.0 kHz)3 (Figure 1).
What causes bilateral sensorineural hearing loss?
Bilateral sensorineural hearing loss. Genetics, exposure to loud sounds, and diseases like measles can lead to SNHL in both ears.
What is bilateral sensorineural deafness?
Having sensorineural hearing loss means there is damage either to the tiny hair cells in your inner ear (known as stereocilia), or to the nerve pathways that lead from your inner ear to the brain. It normally affects both ears. Once you develop sensorineural hearing loss, you have it for the rest of your life.
Is sensorineural hearing loss a disability?
Severe hearing loss is a qualified disability under the Social Security Disability Act, but you must prove to the Social Security Administration (SSA) that you meet all eligibility requirements in order to receive Social Security Disability (SSD).
Is bilateral sensorineural hearing loss a disability?
What are the causes of asymmetrical hearing loss?
Asymmetrical exposure to noise: Individuals who are repeatedly exposed to noise damaging equipment (firearms, dental drills, etc) on one side of the body can cause asymmetrical hearing loss. Ototoxic medications, head injury, surgery, or infections.
How do you identify asymmetric hearing loss?
Criteria for identifying Asymmetrical Hearing Loss
- interaural threshold difference ≥10 dB at 3 octave frequencies (across the frequency spectrum),
- a difference of ≥15 dB at 1 octave frequency and.
- ≥15 dB difference at two octave frequencies.
What viruses cause sensorineural hearing loss?
For some viruses, like Cytomegalovirus (CMV) and Rubella (CRS), hearing loss is the most prevalent consequence, with CMV causing 40% of congenitally acquired sensorineural hearing loss and almost all patients with Congenital Rubella Syndrome suffering some degree of hearing loss.
What is considered an asymmetrical hearing loss?
Asymmetric hearing loss has been defined as a difference of 15 dB between the right and left ears at three contiguous frequencies. No matter the degree of loss, asymmetric hearing loss requires further evaluation. Generally, this workup includes auditory brainstem response (ABR) testing or MRI.