• Chronic Disorder

• Affects balance and hearing that causes severe dizziness, ringing in the ears, and hearing loss

• Disorder or the inner ear

Hearing Test Results

• PTA - Flat audiometric pattern

• PTA are gold-standard for Meniere's Disease testing as it useful to show fluctuations, progressions - but detailed case history is need

• Speech audiometry testing is to measure patient's ability to identify speech stimuli and confirm results of PTA and rule of presence of non-organic hearing loss

• Sensorineural hearing loss

• Decreased sensorineural hearing at lower and higher frequencies

• Trouble hearing low frequencies and combined high/low frequencies

Impacts on communication and intervention

• Speech Perception

• Speech may be slurred or garbled

Speech Pathology Intervention

• Hearing Loss Management: SLPs can work with individuals who experience hearing loss due to Ménière's disease. They provide strategies for improving communication, such as lip reading, and using assistive listening devices

• Auditory Training: This involves exercises that help improve the brain’s ability to process sound, especially in cases where hearing aids or cochlear implants are used

• Tinnitus Management - Education and Counseling: SLPs can educate patients on how to manage tinnitus (ringing in the ears), which is a common symptom of Ménière's disease. This might include relaxation techniques, sound therapy, and strategies to reduce the impact of tinnitus on daily life

• Compensatory Strategies: For those with fluctuating hearing loss, SLPs can teach communication strategies to help patients maintain effective communication. This might include environmental modifications (e.g., reducing background noise) or using non-verbal communication cues

• Family Training: Involving family members in therapy to ensure they understand the challenges and can support the patient effectively

"The mechanisms by which loud noise induces hearing loss include mechanical damage of cochlear structures, reduction in blood flow, sterile inflammation, and oxidative stress and excitotoxicity due to overstimulation of hair cells and nerves".

Loss of hair cells (stereocillia via apoptosis/programmed cell death)

Exposures include:

• Workplaces - factories, occupations

• Lifestyle - if you go clubbing and like to party

• One time exposures to significant sounds - such as an explosion, shooting firearms

There are also risk factors:

• Genetic

• Health conditions

• Lifestyle factors - smoking

This can affect:

• Activities and participation

  • E.g. ability enjoy playing sports, enjoy music, social communication (more difficult)

• Occupation - might lose your job

Learning difficulties: untreated hearing loss can lead to challenges in communication, literacy and educational attainment

Social isolation: Impact intergration in communities, as well as personal and social relationships

Economic impact:

Employment: hearing loss can effect employment opportunties, if not managed effectively

Damage to the inner hair cells in the cochlear leading the cell death (could be due to acoustic trauma or exposure to ototokins

Can be caused by damage to the sensitive hair cells inside the inner ear, earwax buildup, ear infection, and ruptured eardrums.

Hearing Test Results:

• Pure-Tone Audiometry (PTA):

  • High-frequency hearing loss with a downward-sloping audiogram.

• Speech Audiometry:

  • Elevated speech recognition thresholds and reduced word recognition, especially in noise.

• Tympanometry:

  • Typically normal (Type A), as middle ear function is unaffected.

Impacts on Communication:

• Difficulty understanding speech, especially in noisy environments.

• Social isolation and increased cognitive effort to follow conversations.

Intervention Options:

• Medical:

  • Managing underlying conditions and overall health.

• Audiological:

  • Hearing aids, cochlear implants, and assistive listening devices.

• Allied Health Management:

  • Speech Therapy: Auditory training and communication strategies.

  • Psychology: Addressing emotional impact.

  • Occupational Therapy: Communication tools for daily activities.

If it is unilateral, speaker can have trouble understanding/hearing speaker on the affected ear.

Speech disruption in perception - making it difficult to understand speech clearly, especially in noisy environments.

• Initial Evaluation: An audiologist will perform a thorough hearing assessment, including pure-tone audiometry, speech audiometry, and tympanometry, to determine the degree and type of hearing loss.

• Differential Diagnosis: Audiologists help differentiate between conductive and sensorineural hearing loss and identify the underlying causes, which may include viral infections, vascular issues, or autoimmune disorders.

2. Medical Management

• Referral to ENT Specialist: Immediate referral to an otolaryngologist (ENT specialist) is essential for medical evaluation and potential treatments like corticosteroids, either orally or via intratympanic injection, which are commonly used in the early stages.

  
  

3. Speech-Language Pathology

• Aural Rehabilitation: Speech-language pathologists (SLPs) provide aural rehabilitation to help patients adapt to hearing changes. This may include auditory training, speech-reading (lip-reading), and communication strategies.

4. Psychological Support

• Mental Health Screening: Sudden hearing loss can be distressing and may lead to anxiety, depression, or social withdrawal. Psychologists or counselors can offer support and mental health interventions as needed.

  
  

5. Occupational Therapy

• Adaptation Strategies: Occupational therapists (OTs) may assist patients in adapting their daily routines and environments to accommodate hearing loss, ensuring they maintain independence.

• Assistive Devices: OTs might recommend and train patients in using assistive listening devices (e.g., FM systems, alerting devices) to improve communication in various settings.

The gradual loss can be unrecognisable for self-aware individuals. Significant symptoms can include trouble comprehension and an inability to understand in a loud, noisy environment. It's important to note that hearing loss affects both ears equally, highlighting the need for comprehensive care.

The medical term of the condition is known as presbycusis.

there are two types of presbycusis1) sensory2) neural

Management is using a hearing aid, it can't restore hearing and can always be progressive.

Prevention: Wear ear plugs,

turn down the volume,

move away from loud noises,

and take care of your health.

Hearing loss among Aboriginal and Torres Strait Islander children in Australia is notably high and primarily attributed to otitis media, which is a treatable and preventable condition. Disparities in hearing health are further complicated by socioeconomic and environmental factors, leading to significant impacts on cognitive and social development. Although progress has been made through various government interventions aimed at reducing ear disease prevalence, systemic barriers remain that hinder effective treatment and management of hearing issues within Indigenous communities.

Key Points

• Ear disease and hearing loss are particularly prevalent among Aboriginal and Torres Strait Islander children, often due to conditions like otitis media.

• Otitis media is prevalent among Indigenous children, especially during early developmental years, and can lead to long-term hearing loss if untreated.

• The incidence of otitis media and related hearing loss occurs at a significantly higher rate for Indigenous children compared to their non-Indigenous counterparts.

• Environmental factors such as household overcrowding and exposure to smoke from tobacco or wood significantly increase the risk of ear infections.

• Socioeconomic disadvantages, including inadequate access to healthcare and nutritional deficiencies, are closely linked to higher rates of ear disease in Indigenous communities.

• Barriers to healthcare access often result in delayed diagnoses and treatments, prolonging periods of hearing loss and impairments.

• Various government programs aimed at improving Indigenous children's ear health have shown success, but substantial gaps in healthcare access and preventive efforts continue to exist.

Key pathological causes:

• Mechanical Stress: Loud noises exert intense sound pressure, causing direct mechanical damage to the cochlear hair cells, which are crucial for converting sound vibrations into neural signals.

• Molecular Pathways Activation: Noise exposure triggers stress-induced molecular pathways, including the generation of reactive oxygen species (ROS) and calcium overload, leading to cellular damage and death of hair cells.

• Threshold Shifts:

  • Temporary Threshold Shift (TTS): A temporary decrease in hearing that resolves after noise exposure.

  • Permanent Threshold Shift (PTS): Prolonged or repeated exposure results in irreversible hearing loss due to hair cell death.

• Synaptic Damage: Even noise levels causing TTS can lead to permanent cochlear damage, specifically the loss of hair-cell ribbon synapses, affecting neurotransmitter release and potentially leading to "hidden hearing loss." This synaptic damage may not be immediately apparent but can impact hearing function over time.

• Sudden sensorineural hearing loss.

• SSHL happens because there is something wrong with the sensory organs of the inner ear. Sudden deafness frequently affects only one ear.

• Something is wrong with the inner ear.

• Usually one ear.

• Can cause communication difficulties.

Causes:

• Some conditions – only 10% of people are diagnosed with an identifiable cause.

  • Infections.

  • Head trauma.

  • Autoimmune diseases.

  • Exposure to certain drugs that treat cancer or severe infections.

  • Blood circulation problems.

  • Neurological disorders, such as multiple sclerosis.

  • Disorders of the inner ear.

  • Exposure to loud noises.

Diagnosis:

• With pure tone audiometry:

• Doctor can measure how loud different frequencies, or pitches, of sounds need to be before you can hear them. One sign of SSHL could be the loss of at least 30 decibels in three connected frequencies within 72 hours.

• Make conversational speech sound like a whisper.

Treatment:

• The most common treatment for sudden deafness, especially when the cause is unknown, is corticosteroids.

• If the cause is an infection, the doctor may prescribe antibiotics.

• Hearing aids to amplify sound.

• Cochlear implants to directly stimulate the auditory connections in the ear that go to the brain.

Referrals:

• Audiologist.

• ENT.

• Occupational therapist.

• Speech pathologist.

Impact on Communication

Noise-induced hearing loss (NIHL) occurs when there is damage to the hair cells in the cochlea due to prolonged exposure to loud noise. The impact on communication can be significant and includes:

1. Difficulty Understanding Speech:

   • NIHL often affects the ability to hear high-frequency sounds, which are essential for understanding consonants like "s," "t," "f," and "sh." This can make speech sound muffled or unclear, particularly in environments with background noise.

2. Reduced Speech Discrimination:

   • Individuals with NIHL may struggle to differentiate between similar-sounding words or sounds, especially in noisy environments. This can lead to frequent misunderstandings during conversations.

3. Social Isolation and Communication Avoidance:

   • The frustration of not being able to understand others can lead to withdrawal from social interactions, contributing to feelings of loneliness and isolation.

4. Increased Listening Effort:

   • People with NIHL often need to concentrate more to understand conversations, leading to listening fatigue and decreased engagement in communication.

Intervention Strategies

1. Medical Interventions

• Hearing Protection:

  • Preventative measures are critical. Educating patients about the use of hearing protection (e.g., earplugs, earmuffs) in noisy environments can help prevent further damage.

• Pharmacological Interventions:

  • Research into otoprotective agents is ongoing, with some medications under investigation for their potential to protect against NIHL. However, these are not yet widely available.

2. Audiological Interventions

• Hearing Aids:

  • Modern digital hearing aids can amplify specific frequencies affected by NIHL, improving speech understanding. They can be programmed to reduce background noise and enhance speech clarity.

• Assistive Listening Devices (ALDs):

  • ALDs, such as personal amplifiers and FM systems, can be used in specific settings (e.g., classrooms, theatres) to improve the signal-to-noise ratio, making it easier to hear speech.

• Tinnitus Management:

  • Many individuals with NIHL experience tinnitus (ringing in the ears). Audiologists can provide tinnitus retraining therapy (TRT) and sound therapy to manage symptoms.

3. Management by Other Health Professionals

• Speech-Language Pathology:

  • Speech therapists can work with individuals to develop strategies for clearer speech production and improved communication, including lip reading and other compensatory techniques.

• Psychological Support:

  • Psychologists or counsellors can help address the emotional and social consequences of hearing loss, such as depression, anxiety, or social withdrawal.

• Occupational Therapy:

  • Occupational therapists can assist with environmental modifications, such as advising on workplace accommodations or home adjustments to enhance communication.

• Vocational Rehabilitation:

  • Vocational rehabilitation professionals can support individuals in adapting to their hearing loss in the workplace, including the use of technology and adaptive strategies to maintain employment.