Understanding Sudden Sensorineural Hearing Loss
Sensorineural (sen-suh-ree-NUR-uhl) hearing loss, also known as SNHL, occurs because of damage to your inner ear. SNHL has a significant impact on your hearing ability. You may not be able to hear soft sounds, and even loud noises may seem muffled.
That’s because tiny receptors in your inner ear called hair cells are damaged. These hair cells are responsible for converting sound waves into signals that your brain interprets as sound. Unfortunately, these cells can’t repair themselves, making SNHL a permanent condition in most cases. But wearing hearing aids or other hearing devices can greatly improve your hearing and quality of life.
Types of Sensorineural Hearing Loss
There are a few different types of sensorineural hearing loss:
- Unilateral sensorineural hearing loss affects one ear.
- Bilateral sensorineural hearing loss affects both ears.
- Asymmetrical sensorineural hearing loss affects both ears, but hearing loss is worse in one ear.
- Sudden sensorineural hearing loss is a medical emergency that happens within 72 hours of an injury, illness or exposure to loud noise (like fireworks or gunshots).
Sensorineural hearing loss, particularly the age-related variant, is one of the most common types of hearing loss in adults.
Causes of Sudden Sensorineural Hearing Loss
SNHL can happen suddenly due to an illness, injury or exposure to loud noise, like an explosion. Alternatively, SNHL can develop gradually over time as part of the aging process. And in some cases, people are born with it.
Diagnosis and Treatment
If you experience sudden hearing loss, seeking immediate medical attention is crucial. A healthcare professional can diagnose the type and severity of hearing loss through various hearing tests. While sensorineural hearing loss is often permanent, early intervention can help manage the condition and improve quality of life.
Treatment Options
- Hearing Aids: Amplify sounds to improve hearing ability.
- Cochlear Implants: Surgically implanted devices that bypass damaged portions of the inner ear and directly stimulate the auditory nerve.
- Assistive Listening Devices (ALDs): Various devices to help in specific situations, such as amplified telephones or FM systems.
The choice of treatment depends on the individual's specific needs and the severity of the hearing loss. Consulting with an audiologist or ENT specialist is essential to determine the best course of action.