HIS Tinnitus Assessment & Management 1 — Questions and Answers
Question 1: What is tinnitus and what is its prevalence in adults with hearing loss?
- Tinnitus is ear pain; it occurs in about 5% of hearing loss patients
- Tinnitus is the perception of sound (ringing, buzzing, hissing) without an external acoustic stimulus; approximately 80-90% of people with hearing loss have some degree of tinnitus (Correct answer)
- Tinnitus is a middle ear infection common in children
- Tinnitus is feedback from a hearing aid; it affects 100% of hearing aid users
Correct answer: Tinnitus is the perception of sound (ringing, buzzing, hissing) without an external acoustic stimulus; approximately 80-90% of people with hearing loss have some degree of tinnitus
Tinnitus is the subjective perception of sound without an external source. It is extremely common in people with hearing loss—estimated to affect 80-90% of those with sensorineural hearing loss to some degree.
Tinnitus affects approximately 15% of the general population and up to 80-90% of people with sensorineural hearing loss. The most widely accepted neural model proposes that tinnitus arises from aberrant neural activity in the auditory cortex and brainstem triggered by reduced peripheral input due to cochlear damage. Common types include tonal (pure-tone like ringing), noise-like (hissing, white noise), and pulsatile (rhythmic, usually vascular). HIS should routinely screen for tinnitus and understand management options.
Question 2: What is sound therapy in the context of tinnitus management and how does it help?
- Exposing patients to very loud sounds to desensitize the auditory system
- Using background sound (white noise, nature sounds, or hearing aid amplification) to partially mask or blend with tinnitus, reducing its perceived loudness and annoyance (Correct answer)
- A form of psychotherapy using music to treat depression
- Surgical implantation of a sound-generating device in the cochlea
Correct answer: Using background sound (white noise, nature sounds, or hearing aid amplification) to partially mask or blend with tinnitus, reducing its perceived loudness and annoyance
Sound therapy uses ambient sound to reduce the contrast between tinnitus and the acoustic environment, making the tinnitus less noticeable through partial masking, habituation facilitation, or neuroplastic auditory pathway changes.
Sound therapy for tinnitus works on the principle that tinnitus is most noticeable in quiet, when it stands out from the acoustic background. By introducing a background sound (white noise, pink noise, nature sounds, notched music, or hearing aid amplification), the contrast between the tinnitus and environment is reduced. This can provide immediate relief through partial masking, and over time may facilitate habituation. Many hearing aids now incorporate tinnitus sound generators as a built-in feature, allowing simultaneous amplification and tinnitus therapy.
Question 3: What is Tinnitus Retraining Therapy (TRT) and what are its two main components?
- A drug therapy and surgical approach to cure tinnitus
- A therapy combining directive counseling (to reclassify tinnitus as a neutral signal) and low-level sound therapy (to promote habituation), based on the neurophysiological model of tinnitus (Correct answer)
- An exercise program and diet modification for tinnitus reduction
- A combination of hearing aid fitting and cochlear implantation
Correct answer: A therapy combining directive counseling (to reclassify tinnitus as a neutral signal) and low-level sound therapy (to promote habituation), based on the neurophysiological model of tinnitus
TRT, developed by Jastreboff, combines directive counseling to help the patient understand and reframe tinnitus as a non-threatening neutral signal, and low-level broadband sound therapy to reduce auditory contrast and facilitate neural habituation.
Pawel Jastreboff developed TRT based on his neurophysiological model proposing that tinnitus distress arises not from the auditory signal itself but from conditioned limbic and autonomic nervous system reactions to it. TRT has two components: directive counseling (extensive education about the neurophysiological basis of tinnitus, aimed at reclassifying the signal from threatening to neutral) and sound therapy (low-level broadband noise generators set at a mixing point below full masking to facilitate habituation). TRT typically takes 12-18 months.
Question 4: Which validated questionnaire is most commonly used to assess tinnitus handicap and severity?
- APHAB (Abbreviated Profile of Hearing Aid Benefit)
- THI (Tinnitus Handicap Inventory) (Correct answer)
- HHIE (Hearing Handicap Inventory for the Elderly)
- GHABP (Glasgow Hearing Aid Benefit Profile)
Correct answer: THI (Tinnitus Handicap Inventory)
The Tinnitus Handicap Inventory (THI) is a 25-item self-report questionnaire measuring the functional, emotional, and catastrophic impact of tinnitus, with total scores classifying severity from slight (0-16) to catastrophic (78-100).
The THI was developed by Newman, Jacobson, and Spitzer (1996) and is the most widely used tinnitus outcome measure globally. Its 25 questions assess three subscales: Functional (effects on concentration, reading, work, social activities), Emotional (irritability, anxiety, depression), and Catastrophic (fear of serious illness, feeling of loss of control). Total scores range from 0-100 across five severity grades. The THI is used at baseline and follow-up to measure treatment effect.
Question 5: How do hearing aids help patients with tinnitus even when the primary indication is hearing loss?
- Hearing aids suppress tinnitus by electrically stimulating the cochlea
- Hearing aids restore ambient sound audibility, reducing the contrast between tinnitus and the acoustic environment, and by restoring auditory input may reduce tinnitus-generating neural hyperactivity (Correct answer)
- Hearing aids block the ear canal completely, which masks tinnitus
- Hearing aids have no effect on tinnitus—separate devices are always required
Correct answer: Hearing aids restore ambient sound audibility, reducing the contrast between tinnitus and the acoustic environment, and by restoring auditory input may reduce tinnitus-generating neural hyperactivity
Hearing aids address tinnitus by restoring auditory input (reducing the deprivation-driven neural hyperactivity thought to generate tinnitus) and by amplifying ambient sound, reducing the perceptual contrast that makes tinnitus bothersome.
In patients with hearing loss and tinnitus, cochlear damage reduces input to the central auditory system, leading to compensatory hyperactivity in auditory neurons. Hearing aids address this by: restoring auditory input, which may reduce deprivation-driven hyperactivity; amplifying ambient sound to reduce acoustic contrast; and improving communication, which reduces the stress and anxiety that exacerbate tinnitus distress. Studies show about 60% of tinnitus patients with hearing loss report reduced tinnitus awareness during hearing aid use.
Question 6: When should a patient with tinnitus be referred to a physician or specialist?
- All patients with tinnitus must be medically cleared before any counseling
- When tinnitus is pulsatile (rhythmic, heartbeat-like), unilateral, associated with sudden hearing loss, vertigo, or neurological symptoms—these may indicate a serious underlying condition (Correct answer)
- Only when the patient requests a referral
- Only if tinnitus has been present for more than 10 years
Correct answer: When tinnitus is pulsatile (rhythmic, heartbeat-like), unilateral, associated with sudden hearing loss, vertigo, or neurological symptoms—these may indicate a serious underlying condition
Red flag tinnitus presentations—pulsatile, unilateral, or associated with sudden hearing loss, vertigo, facial weakness, or neurological symptoms—require prompt medical referral to rule out vascular abnormalities, acoustic neuroma, or other serious pathology.
Most subjective bilateral symmetric tinnitus is benign and related to sensorineural hearing loss. However, certain presentations require medical evaluation: pulsatile tinnitus may indicate vascular tumors or arteriovenous malformations; unilateral tinnitus raises suspicion for acoustic neuroma (vestibular schwannoma), especially with unilateral hearing loss; sudden onset unilateral hearing loss with tinnitus is a medical emergency; and tinnitus with vertigo suggests Meniere's disease. HIS must recognize these red flags and refer before initiating tinnitus management.
HIS Tinnitus Assessment & Management 1
What is tinnitus and what is its prevalence in adults with hearing loss?