aud733 tinnitus overview
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Two Types of Two Types of TinnitusTinnitusSubjective TinnitusSubjective Tinnitus
Objective TinnitusObjective Tinnitus
Two Types of Two Types of TinnitusTinnitusSubjective TinnitusSubjective Tinnitus
The experience of sound not originating from a source outside the body.
Needs to be differentiated from internally-generated somatosounds and from objective tinnitus
What are What are Somatosounds?Somatosounds?Sounds that are internally-generated in the
body or head and perceived by the patient
Pulsatile: caused by perception of bloodflow can be rhythmic with heartbeat
Ex: venous hum or vascular noise
Pulsatile and non-pulsatilePulsatile and non-pulsatile
Non-pulsatile: Ex: patulous eustachian tube, tensor tympani
muscle spasms, TMJ
Somatosounds can be objective or subjective
Somatosounds require medical evaluation
Two Types of Two Types of TinnitusTinnitusSubjective TinnitusSubjective Tinnitus
The experience of sound not originating from a source outside the body
Needs to be differentiated from internally-generated somatosounds and from objective tinnitus
Objective TinnitusObjective Tinnitus
Also known as - “audible” tinnitus
The person’s tinnitus can be heard by others (infant)
Relatively rare
Two Levels of Two Levels of TinnitusTinnitusAcute TinnitusAcute Tinnitus
Chronic TinnitusChronic Tinnitus
Two Levels of Two Levels of TinnitusTinnitusAcute Tinnitus
• Lasts days or weeks
• With appropriate evaluation, many underlying conditions can usually be identified and treated -sometimes resulting in resolution of tinnitus
Chronic Tinnitus• Persistent for 6 months or more
• Today there is no true CURE for tinnitus - there are effective tinnitus management programs available that helps patients get relief from tinnitus
Causes of TinnitusCauses of Tinnitus
according to the Oregon Tinnitus Data Registry (2000)
1- No known etiology or event (~ 40%)
2- Noise related
• Noise of long duration
• Explosion
• Noise of brief intensity
Causes of TinnitusCauses of Tinnitus
according to the Oregon Tinnitus Data Registry (2000)
1- No known etiology or event (~ 40%)
2- Noise related
3- Head and neck trauma
• Head injury• Cervical trauma or whiplash• Skull fracture• Concussion
Causes of TinnitusCauses of Tinnitus
according to the Oregon Tinnitus Data Registry (2000)
1- No known etiology or event (~ 40%)
2- Noise related
3- Head and neck trauma
4- Head and neck illness
• Sinus infection
• Ear infection or inflammation
• Other ear problems
• Sudden hearing loss
Causes of TinnitusCauses of Tinnitus
according to the Oregon Tinnitus Data Registry (2000)
1- No known etiology or event (~ 40%)
2- Noise related
3- Head and neck trauma
4- Head and neck illness
5- Other medical conditions• Medications, drugs• Surgery• Barotrauma
Factors That Exacerbate Factors That Exacerbate TinnitusTinnitus Caffeine
AlcoholSodiumFatigue
Stress (excercise)
Noise exposure
Characteristics of Characteristics of TinnitusTinnitus
according to the Oregon Tinnitus Data Registry (2000)
• Sudden or gradual onset
• Variety of sounds reported
• Constant or intermittent
• Vary in pitch, loudness and quality
• Perceived in one ear, both ears or in the head
Whom Does Tinnitus Whom Does Tinnitus Impact?Impact?
Patient
• Spouse / partner
• Family members
• Friends
• Colleagues / co-workers
Symptoms Associated with Symptoms Associated with TinnitusTinnitus
Confusion
Fear
Isolated
Stress
Fatigue
Inattentive
Anxiety
DEPRESSION
Individuals With Tinnitus Individuals With Tinnitus Have Lost TheirHave Lost Their
Needs of the Tinnitus Needs of the Tinnitus PatientPatient
The Tinnitus Patient Should The Tinnitus Patient Should See?See?
Audiologist
Otolaryngologist
Neurologist
Psychologist
PsychiatristNutrionistTMJ SpecialistBiofeedback Specialist
Audiologist’s RoleAudiologist’s Role
• Complete History
• Comprehensive Audiological Evaluation
Pure tone AC/BCHigh frequency: 9KHz – 20KHz (ideally)SRT / SDSMost Comfortable Loudness Level (MCL)
Audiologist’s RoleAudiologist’s Role
• Complete History
• Comprehensive Audiological Evaluation
Pure tone AC/BCHigh frequency: 9KHz – 20KHz (ideally)SRT / SDSMost Comfortable Loudness Level (MCL)Loudness discomfort levels (LDL)*
• 5dB increments – no hyperacusis reported• 2dB increments – hyperacusis reported• repeat twice
Audiologist’s RoleAudiologist’s Role
• Complete History
• Comprehensive Audiological Evaluation
Pure tone AC/BCHigh frequency: 9KHz – 20KHz (ideally)SRT / SDSMost Comfortable Loudness Level (MCL)Loudness discomfort levels (LDL)*Immitance testing
TympanometryAcoustic reflex thresholds**Acoustic reflex decay**
Audiologist’s RoleAudiologist’s Role
• Complete History
• Comprehensive Audiological Evaluation
Pure tone AC/BCHigh frequency: 9KHz – 20KHz (ideally)SRT / SDSMost Comfortable Loudness Level (MCL)Loudness discomfort levels (LDL)*Immitance testingOtoacoustic emissions – distortion product (DPOAE)
Invaluable tool in counseling session
Audiologist’s RoleAudiologist’s Role
• Complete History
• Comprehensive Audiological Evaluation
Pure tone AC/BCHigh frequency: 9KHz – 20KHz (ideally)SRT / SDSMost Comfortable Loudness Level (MCL)Loudness discomfort levels (LDL)*Immitance testingOtoacoustic emissions – distortion product (DPOAE)ABR – if necessary
Audiologist’s RoleAudiologist’s Role
• Complete History
• Comprehensive Audiological Evaluation
• Tinnitus Assessment
Pitch matchLoudness matchMinimum masking level (MML)