Sensorineural hearing loss is called “nerve deafness”. But the term sensorineural hearing loss describes two different problems; Sensory loss involving the inner ear and neural loss involving the hearing nerve. In most cases, the problem is mostly caused by the inner ear rather than the auditory nerve.
These two problems are addressed in a group because the inner ear and auditory nerve are interconnected and need to work together.
Causes of Sensorineural Hearing Loss
Hearing loss is the most common problem in newborn infants. Hearing loss may be inherited or may be caused by abnormal developments in the fetal (fetus) stages of life. Rubella or German measles in the mother were common causes of congenital hearing loss before the vaccine was found.
Acquired ie obtained (an object or asset) for oneself , postpartum hearing loss can be listed as a variety of factors. Presbycusis (age-related hearing loss), meningitis and meniere’s disease are common. In addition to these, ototoxic drugs:
- Aminoglycoside antibiotics
- Antineoplastic medications (Cisplatin, Carboplatin)
- Loop diuretics
- Toxic substances
used for the treatment of traumas, machine or firearm noise, ear-damaging but life-threatening diseases may trigger hearing loss. There may be a tumor in the auditory nerve for a less common cause.
What are the symptoms?
If sensorineural hearing loss occurs in both ears, it may be difficult to understand speech, even if the volume is high.
When sensorineural hearing loss is seen in only one ear, hearing may be difficult or there may be no success in locating sounds with background noise.
What are the treatment methods?
The treatment of sensorineural hearing loss varies depending on the severity of hearing loss and the effect of one or two ears.
Hearing aids can often be useful for people with mild to moderate hearing loss in both ears. The device may not be effective for high level of hearing loss. This is because sensorineural hearing loss causes distortion of sounds. Even high-quality hearing aids may distort the sound in cases where the inner ear is severely damaged. These devices help to increase the volume of the sound and cannot clarify the sound.
For high level of hearing loss, cochlear implants, which are electronic devices implanted surgically, can be used.
Cochlear implants unlike hearing aids that only amplify sound, convert sound waves into electrical impulses to mimic natural operation and directly stimulate the auditory nerve by bypassing the damaged inner part of the ear.
is an electronic medical device developed for people with high level or very severe hearing loss. It works by converting sounds into electronic stimulation sent directly to the hearing nerve. This means that the sounds bypass the damaged parts of the ear. Only your doctor or audiologist can determine if you are a candidate for cochlear implant.
A hearing aid may also be used for mild or severe sensorineural hearing loss in one ear. In severe hearing loss, bone conduction implants can transmit sound through the bone from the damaged ear to the intact inner ear on the other side. This makes speech easier to understand in noisy environments and reduces the attenuation of sounds on the non-hearing side. If you can hear normally through your hearing ear, or if you have a mild hearing loss, a bone conduction implant may be appropriate for you.
* Meniere: is a disease caused by excessive pressure in the inner ear. The three main symptoms of Meniere’s disease are; unexpected sudden attacks of vertigo, tinnitus and decreased hearing.
* Ototoxic, which means poisonous to the ear. Any drug or chemical with a side effect that can damage the inner ear is included.