Timothy C. Hain,
MD. •Page last modified:
October 1, 2022
Other major pages on this site about tinnitus: cervical tinnitus •Treatment of Tinnitus
Index of this page : Tinnitus defined •
This document is not written for or intended for use in legal proceedings.
Tinnitus (pronounced "tin-it-tus") is an abnormal
noise in the ear (note that it is not an "itis" -- which means inflammation). Tinnitus is common -- nearly 36 million Americans have constant
tinnitus and more than half of the normal population has intermittent tinnitus. Another way to summarize this is that about 10-15% of the entire population has some type of constant tinnitus, and about 20% of these people (i.e. about 1% of the population) seek medical attention (Adjamian et al, 2009). Similar statistics are found in England (Dawes et al, 2014) and Korea (Park and Moon, 2014).
The prevalence of tinnitus depends on the questions you ask. Nemholt et al (2019) reported that the prevalence of "any tinnitus" was 66.9% in Danish children aged 10-16. We believe them -- it just shows you get what you ask for. This means that standardized questions are necessary to compare apples to apples.
Curiously, in the US, only 6.6% of Asian Americans report "any tinnitus" (Choi et al, 2020). It is puzzling that Asian americans report about a third of the tinnitus that most populations do (including Korea), and also a 10th of tinnitus of Danish Children. With this wide variability in reports, it would seem that these numbers are pretty fuzzy.
About six percent of the general population has what they consider to be "severe" tinnitus. That is a gigantic number of people ! Tinnitus is more common with advancing age. In a large study of more than 2000 adults aged 50 and above, 30.3%
reported having experienced tinnitus, with 48% reporting symptoms in both ears.
Tinnitus had been present for at least 6 years in 50% of cases, and most (55%)
reported a gradual onset. Tinnitus was described as mildly to extremely annoying
by 67%.(Sindhusake et al. 2003)
Tinnitus can come and go, or be continuous. It can sound like a low roar, or
a high pitched ring. Tinnitus may be in both ears or just in one ear. Seven
million Americans are so severely affected that they cannot lead normal lives.
The most common types of tinnitus are ringing or hissing ringing, whistling
(high pitched hissing) and roaring (low-pitched hissing). Some persons hear
chirping, screeching, or even musical sounds.
Note however that tinnitus nearly always
consists of fairly simple sounds -- for example, hearing someone talking that
no one else can hear would not ordinarily be called tinnitus -- this would be
called an auditory hallucination. Musical hallucinations in patients without psychiatric disturbance is most often described in older persons, years after hearing loss.
Another way of splitting up tinnitus is into objective and subjective. Objective tinnitus can be heard by the examiner. Subjective cannot. Practically, as there is only a tiny proportion of the population with objective tinnitus, this method of categorizing tinnitus is rarely of any help. It seems to us that it should be possible to separate out tinnitus into inner ear vs everything else using some of the large array of audiologic testing available today. For example, it would seem to us that tinnitus should intrinsically "mask" sounds of the same pitch, and that this could be quantified using procedures that are "tuned" to the tinnitus.
Epidemiology of Tinnitus:
|Distribution of Persons with tinnitus
||Percent with Tinnitus
||Percent with Hearing Loss
||Chan et al, 2017
|Older than 50
||Adams et al, 1999
With respect to incidence (the table above is about prevalence), Martinez et al (2015) reported that there were 5.4 new cases of tinnitus per 10,000 person-years in England. We don't find this statistic much use as tinnitus is highly prevalent in otherwise normal persons. It seems to us that their study is more about how many persons with tinnitus were detected by the health care system -- and that it is more a study of England's health care system than of tinnitus.
Chan et al (2017) compared pediatric to adult tinnitus, and stated that "This study distinguishes pediatric tinnitus from adult tinnitus in terms of lower association with underlying hearing loss, lower likelihood of reported anxiety, and higher likelihood of improvement and resolution. " So it is good to be young.
Accompaniments of tinnitus (pun intended)
Tinnitus is commonly accompanied by hearing
loss, and roughly 90% of persons with chronic tinnitus have some form of hearing loss (Davis and Rafaie, 2000; Lockwood et al, 2002). On the other hand, only about 30-40% of persons with hearing loss develop tinnitus. According to Park and Moon (2004), hearing impairment roughly doubles the odds of having tinnitus, and triples the odds of having annoying tinnitus.
Less commonly, tinnitus may be accompanied by hyperacusis (an abnormal sensitivity
|Structures of the ear. Most tinnitus is due to damage to the cochlea (#9 above)
Henry et al (2005) reported that noise was an associated factor for 22% of cases, followed by head and neck injury (17%), infections and neck illness (10%), and drugs or other medical conditions (13%). The rest of their patients could not identify an event.
Park and Moon (2004) reported the odds ratio for tinnitus according to many factors. They examined results from 10,061 Koreans.
|Chronic otitis media
Thus it can see that there are numerous factors that are weakly correlated with tinnitus, and that hearing impairment is the most strongly associated. It is surprising that TMJ's correlation is nearly as high as hearing impairment, and more than depression or stress. Other studies have similar results (Lee et al, 2016)
It is very well accepted that tinnitus often is "centralized" -- while it is usually initiated with an inner ear event, persistent tinnitus is associated with changes in central auditory processing (Adjamian et al, 2009). Sometimes this idea is used to put forth a "therapeutic nihilism" -- suggesting that fixing the "cause" -- i.e. inner ear disorder -- will not make the tinnitus go away. This to us seems overly simplistic -- while it is clear that the central nervous system participates in perception of sounds, and thus must be a participant in the "tinnitus" process, we think that it is implausible that in most cases that there is not an underlying "driver" for persistent tinnitus.
Supporting the idea that central reorganization is overestimated as "the" cause of tinnitus, a recent study by Wineland et al showed no changes in central connectivity of auditory cortex or other key cortical regions (Wineland et al, 2012). Considering other parts of the brain, Ueyama et al (2013) reported that there was increased fMRI activity in the bilateral rectus gyri, as well as cingulate gyri correlating with distress. Loudness was correlated with values in the thalamus, bilateral hippocampus and left caudate. In other words, the changes in the brain associated with tinnitus seem to be associated with emotional reaction (e.g. cingulate), and input systems (e.g. thalamus). There are a few areas whose role is not so obvious (e.g. caudate). This makes a more sense than the Wineland result, but of course, they were measuring different things. MRI studies related to audition or dizziness must be interpreted with great caution as the magnetic field of the MRI stimulates the inner ear, and because MRI scanners are noisy.
Although mitochondrial DNA variants are thought to predispose to hearing loss, a study of polish individuals by Lechowicz et al, reported that "there are no statistically significant differences in the prevalence of tinnitus and its characteristic features between HL patients with known HL mtDNA variants and the general Polish population." This would argue against mitochondrial DNA variants as a cause of tinnitus, but the situation might be different in other ethnic groups.
Another way to look at it is to look at the areas of the body that can initiate tinnitus.
Ear disorders as a cause of tinnitus
Most tinnitus comes from damage to the inner ear, specifically the cochlea (the snail like thing on the right of figure 1, labeled '9').
- Patients with Meniere's disease often describe a low pitched tinnitus resembling a hiss or a roar. This is quite logical as Meniere's affects large pieces of the cochlea, rather than just a localized area that might cause ringing. Somewhat contrary to this assertion, Perez-Carpena et al (2019) said that " The type of tinnitus in Meniere's Disease ranged from pure tones to noise-like tinnitus (white, brown and pink noise). ", or in other words, that anything goes. We are dubious that this is true.
- Loud noise is the leading cause of damage to the inner ear. Most patients with noise trauma describe a whistling tinnitus (Nicholas-Puel et al,. 2002). In a large study of tinnitus, avoidance of occupational noise was one of two factors most important in preventing tinnitus (Sindhusake et al. 2003). The other important factor was the rapidity of treating ear infections.
- Advancing age is often accompanied by inner ear damage and tinnitus. (Sindhusake et al. 2003)
- Ear wax can rarely
cause tinnitus. Other causes include middle ear infection or fluid, otosclerosis, and infections such
as otosyphilis or labyrinthitis, See this page for a review of Covid-19 and the ear, and this page for information about covid-19 vaccinations and tinnitus.
- There are small muscles in the middle ear (the tensor tympani and stapedius)
that can start twitching and cause tinnitus (Golz et al. 2003), more about this later.
- Ototoxicity is a cause of tinnitus.
- Patients with head or neck injury may have
particularly loud and disturbing tinnitus (Folmer and Griest, 2003). Tinnitus due to neck injury is the most common type of "somatic tinnitus". Somatic tinnitus means that the tinnitus is coming from something other than the inner ear. Tinnitus from a clear cut inner ear disorder frequently changes loudness or pitch when one simply touches the area around the ear. This is thought to be due to somatic modulation of tinnitus. We have encountered patients who have excellent responses to cervical epidural steroids, and in persons who have both severe tinnitus and significant cervical nerve root compression, we think this is worth trying as treatment.
- Some persons with severe TMJ (temporomandibular joint) arthritis have severe tinnitus. Generally these persons say that there is a "screeching" sound. This is another somatic tinnitus. TMJ is extremely common -- about 25% of the population. The exact prevalence of TMJ associated tinnitus is not established, but presumably it is rather high too. Having TMJ increases the odds that you have tinnitus too, by about a factor of 1.6-3.22 (Park and Moon, 2014; Lee et al, 2016). This is the a large risk factor for tinnitus, similar to the risk from hearing loss (see table above).
- It is also very common for jaw opening to change the loudness or frequency of tinnitus. This is likely a variant of somatic modulation of tinnitus (see above). The sensory input from the jaw evidently interacts with hearing pathways. The muscles that open the jaw are innervated by the same nerve, the motor branch of 5, that controls the tensor tympani in the ear. In other words, changing tension in the jaw may also change muscle tension in the ear.
8th nerve and brain disorders causing tinnitus
- Tinnitus can also arise from damage to the nerve between the ear and brain (8th nerve, labeled 6, auditory nerve). Distinct causes are microvascular compression syndrome, viral infections of the 8th nerve, and tumors of the 8th nerve. Chiari malformations are rarely a cause of tinnitus.
- Tinnitus arises more rarely from injury to the brainstem (Lanska et al, 1987), and extremely rarely, to the brain itself (e.g. palinacusis).
- We have encountered a patient with musical hallucination type tinnitus due to brainstem injury where they were transiently deaf, due to a midbrain injury. This is presumably a form of Charles Bonnet.
- Tinnitus is rarely caused by brain disorders. In our experience, this is usually in persons who have strokes in auditory cortex (i.e. temporal lobe) on both sides. This is again presumably a form of Charles Bonnet.
- Paquette et al (2017) reported a prospective study of 166 patients who had brain surgery involving removal of the medial temporal lobe. The prevalence of tinnitus increased from approximately from 10 to 20% post surgery. This study did not include a control -- a natural question would be -- suppose a different part of the brain were removed. One would also think that drilling of the skull from any source might increase tinnitus. We are presently dubious that the medial temporal lobe suppresses tinnitus.
- Tinnitus can be associated with Basilar Artery Migraine (BAM), and also tinnitus can be more bothersome when one is having a migraine (Volcy et al, 2005), like sound and light and smells.
- Tinnitus can occur as a sleep disorder - -this is called the "exploding head syndrome".
Vascular problems causing tinnitus -- pulsatile tinnitus
In pulsatile tinnitus, people hear something resembling their heartbeat in their ear. Click on the link above for more details.
Drug induced tinnitus
In our opinion, people are very quick to blame drugs for their tinnitus, but it is rare that this is borne out.
Many medications also can cause tinnitus (see list below). Generally this is
thought to arise from their effect on the cochlea (inner ear).
Drugs that commonly cause or increase tinnitus -- these are largely ototoxins.
- NSAIDS (motrin, naproxen, relafen, aspirin, etc)
- Lasix and other "loop" diuretics
- "mycin" antibiotics such as vancomycin (but rarely macrolides
such as azithromycin)
- quinine and related drugs
- Chemotherapy such as cis-platin and similar drugs
Antidepressants are occasionally associated with tinnitus (Robinson, 2007). For example, Tandon (1987) reported that 1% of those taking imiprimine complained of tinnitus. In a double-blind trial of paroxetine for tinnitus, 3% discontinued due to a perceived worsening of tinnitus (Robinson, 2007). There are case reports concerning tinnitus as a withdrawal symptom from Venlafaxine and sertraline (Robinson, 2007). In our clinical practice, we have occasionally encountered patients reporting worsening of tinnitus with an antidepressant, generally in the SSRI family.
Often people bring in lists of medications that have been reported, sometimes just in a case report, to be associated with tinnitus. This unfortunate behavior makes it very hard to care for these patients -- as it puts one into an impossible situation where the patient is in great distress but is also unwilling to attempt any treatment. Specialists who care for patients with ear disease, usually know which drugs are problems (such as those noted above), and which ones are nearly always safe.
Malingering of Tinnitus and psychogenic tinnitus.
As tinnitus is essentially subjective, malingering of tinnitus as well as psychological causes of tinnitus is certainly possible. In fact, auditory hallucinations (such as hearing voices) are common in schizophrenia. Musical hallucinations are somewhat common, but are not generally associated with psychiatric disorders.
In malingering, a person claims to have tinnitus (or more tinnitus), in an attempt to gain some benefit (such as more money in a legal case). See this page concerning malingering of hearing symptoms.
There is a high correlation between anxiety depression and the annoyance/severity of tinnitus (Pinto et al, 2014).
Miscellaneous causes of Tinnitus
- Vitamin B12 deficiency is common in tinnitus patients.
- Fibromyalgia is often accompanied by tinnitus (Cil et al, 2020). This is not surprising as both tinnitus and fibromyalgia are essentially diagnosed from symptoms alone.
- Microvascular compression may sometimes cause tinnitus. According to Levine (2006) the quality is similar to a "typewriter", and it is fully suppressed by carbamazepine. It seems to us that response to carbamazepine is not a reliable indicator of microvascular compression as this drug stabilizes nerves and lowers serum sodium. Nevertheless, this quality of tinnitus probably justifies a trial of oxcarbamazine (a less toxic version of carbamazepine).
- Schecklmann et al (2014) suggested that tinnitus is associated with alterations in motor cortex excitability, by pooling several studies, and reported that there are differences in intracortical inhibition, intra-cortical facilitation, and cortical silent period. We doubt that this means that motor cortex excitability causes tinnitus, but rather we suspect that these findings reflect features of brain organization that may predispose certain persons to develop tinnitus over someone else.
Persons with tinnitus
should be seen by a physician expert in ear disease, usually an otologist or
General ear exam
- There should be an examination of the ears with an otoscope. Wax should be removed, and the examiner should note whether the ear drum is intact, inflamed, scarred, or whether it is moving (as for example in tensor tympani myoclonus).
- The eyes should be examined for papilloedema (swelling of a portion of the
back of the eye called the "optic disk") as increased intracerebral
pressure can cause tinnitus (generally pulsating). Because papilloedema is so rare, and tinnitus is so common, it is very unusual to find this dangerous condition.
- The TMJ joints of the jaw should be checked as about 28% of persons with TMJ
syndrome experience tinnitus. TMJ is very common too.
There are several things that can make noise in the middle ear -- namely the tensor tympani, the stapedius, and the opening/closing of the eustachian tube, as frequently happens on swallowing. Often these can be heard by the examiner.
Inspection of the eardrum may sometimes demonstrate subtle movements due to contraction of the tensor tympani (Cohen and Perez, 2003). Tensor tympani myoclonus causes
a thumping. Another muscle, the stapedius, can also make higher pitched sounds. See this page for more. Opening or closing of the eustachian tube causes a clicking. The best way to hear "objective tinnitus" from the middle ear is simply to have an examiner with normal hearing put their ear up next to the patient. Stethoscopes favor low frequency sounds and may not be very helpful. They do work well though for pulsatile tinnitus due to DAVF.
|Type of middle ear tinnitus
||Thump, inaudible to examiner
||Tick, can be heard by examiner
||Click, can be heard by examiner
and Tensor Tympani Muscles
| Cartoon of the middle ear showing muscles that attach to ossicles (ear bones), and ear drum. The stapedius is attached to the stapes (of course -- horseshoe object above), while the tensor tympani is attached to the ear drum. While useful, be aware that there are multiple errors in this illustration from Loyola Medical School. With permission, from: https://www.meddean.luc.edu/lumen/meded/grossanatomy/dissector/mml/images/stap.jpg
Recommended Laboratory testing for tinnitus:
Based on tests, tinnitus can be separated into categories of cochlear,
retrocochlear, central, and tinnitus of unknown cause.
- Audiogram (high frequency if appropriate) with tympanogram.
- Tinnitus matching. One online tinnitus matcher is found here -- https://www.tinnitool.com/en/tinnitus_analyse/hoertest.php. Ideally one should match each ear for both loudness and pitch, and use a reproduction device that is calibrated (unlike a computer speaker), and can deliver a full frequency spectrum (unlike most computers).
- Testing for hyperacusis
- oVEMP test (because of association with sound sensitivity)
- ABR (auditory brainstem response) or MRI of brain (for tumors). Only needed if asymmetrical.
- Acoustic reflex test (if there is suspicion of tensor tympani or stapedius myoclonus)
- OAE (sweep if possible)
- ECochG (if hearing permits)
- Blood tests (see below)
Patients with tinnitus often undergo the tests listed above.
- The audiogram sometimes shows a sensorineural deficit. This may be due to true loss of hearing, or due to masking from the tinnitus. Extended frequency testing was reported by Ding et al (2022) as having no advantage over conventional testing as tinnitus patients showed no additional deficits over non-tinnitus controls. We find this puzzling, as one would think that patients with ear symptoms would perform worse on ear testing. We would like to see this study replicated by another group.
- Tinnitus matching is helpful to identify the frequency and intensity of the tinnitus. This is a simple procedure in which the audiologist adjusts a sound until a patient indicates that it is the same as their tinnitus. There are also online tools that do much the same thing, for example, this one. Most patients match their tinnitus to the region of their hearing loss (Konig et al, 2006; Mahboubi et al, 2012). Unfortunately, the "gap detection test", does not work to confirm tinnitus in humans (Boyen et al, 2015).
- ABR (ABR) testing may show some subtle abnormalities in otherwise normal persons with tinnitus (Kehrle et al, 2008). The main use of ABR (ABR test) is to assist in diagnosing tinnitus due to a tumor of the 8th nerve or tinnitus due
to a central process. A brain MRI is used for the same general purpose and covers far more territory, but is roughly 3 times more expensive. ABRs are generally not different between patients with tinnitus with or without hyperacusis (Shim et al, 2017). ABRs are also not generally different between ears in asymmetrical tinnitus (Chen and Liu, 2021). Our guess is that there are just few patients with tinnitus caused by brainstem disorders, compared to the much larger population with tinnitus from other sources.
- Tympanograms or acoustic reflex tests can sometimes show a rhythmic compliance change due to a middle ear vascular
mass or due to contraction of muscles in the middle ear. This is rarely useful.
- The physician may also request an OAE test (which is very sensitive to noise induced hearing damage), an ECochG (looking for Meniere's disease and hydrops, an MRI/MRA
test (scan of the brain), a VEMP (looking for damage to other parts of the ear, that might make sound appreciation such as one's pulse more prominent) and several blood tests (ANA, B12, FTA, ESR, SMA-24,
HBA-IC, fasting glucose, TSH, anti-microsomal antibodies).
- Sweep OAE testing can be very helpful in medicolegal contexts, as noise induced tinnitus should be accompanied by a "notch" in the sweep OAE. This can be useful but the technology is not widely available.
There are numerous questionnaires for tinnitus. See this link for more details.
We occasionally recommend neuropsychological testing as depression, anxiety, and OCD (obsessive compulsive disorder) are common in persons with tinnitus. This is not surprising considering how disturbing tinnitus may be to ones life (Holmes and Padgham, 2009). Persons with OCD may think a lot about tinnitus and also worry that drug treatment (perhaps for OCD), is or was, contributing to their tinnitus. Treatment of these psychological conditions may be extremely helpful.
Radiological testing of tinnitus
Branstetter and Weissman (2006) reviewed the radiological evaluation of tinnitus. They favor contrast-enhanced MRI to detect tumors of the inner ear area. Of course, tumors are a very rare cause of tinnitus, as tinnitus is at least 100 times more common than tumors of the inner ear area. Causes that can be seen on radiological testing of continuous tinnitus include: (From Branstetter and Weissman)
Microvascular compression of the 8th nerve is not a significant cause of tinnitus (Gultekin et al. 2008).
In persons with pulsatile tinnitus, additional tests maybe proposed to study
the blood vessels and to check the pressure inside the head. Gentle pressure
on the neck can be performed to block the jugular vein but not the carotid artery.
The Valsalva maneuver reduces venous return by increasing intrathoracic pressure.
If there is a venous hum, this usually abates or improves markedly. If the pulsation
is arterial, these tests have no effect.
Tests that usually don't help.
- Vestibular tests such as ENG, VHIT,
or posturography are generally not
helpful in diagnosing tinnitus. Sometimes VEMP tests are helpful as the condition of SCD can be associated with higher perception of internal sounds (such as one's pulse).
- Tinnitus is rarely attributable to sinus disease
and even if tests suggest that you have this common condition, it is unlikely
that treatment of it will affect tinnitus.
Research tests for tinnitus
A difficulty with most tinnitus is that it is subjective. Certainly one could pretend to have tinnitus, or claim to have more or less tinnitus than is true. One would think that tinnitus would obscure perception of sound at the frequency of tinnitus, and thus be measurable through an internal masking procedure, but this approach has not been helpful. Recent studies involving attempts to objectify tinnitus are below:
- Lowe and Walton reported using ABRs in mice to infer tinnitus (2015). We find the logic of this procedure difficult to follow but hope that it might be the basis for a human procedure.
- Han et al (2017) reported using a variant evoked potential, the "acoustic change complex", or ACC, to measure subjective tinnitus. This needs more study.
Impact of Tinnitus
Holmes and Padgham (2009) reviewed the impact of tinnitus on persons lives. Severe tinnitus is associated with anxiety, distress, sleep disturbance, and sometimes depression.
- Disrupted sleep is the most significant complaint, and affects between 25-50% of tinnitus patients. Occasionally severe tinnitus is associated with changes in sleep state
- Poor attention and concentration are commonly reported. About 42% of survey respondents reported that tinnitus interfered with their work.
- Tinnitus often has negative effects on personal relationships.
We this is a big subject and we have split this material to another page on tinnitus treatment. Briefly, the algorithm that we use in our practice to diagnose and treat tinnitus is here (a PDF graphic). After a diagnostic step, there are many branch points involving treatment trials.
links to other tinnitus materials:
- ATA -- American Tinnitus Association (also see www.ata.org). There is a Chicago chapter of the ATA (800-634-8978), x219
- whooshers.com -- support site for pulsatile tinnitus.
- NHS pages on tinnitus
- Tinnitus Research initiative foundation
- Adams, P. F., G. E. Hendershot, et al. (1999). "Current estimates from the National Health Interview Survey, 1996." Vital Health Stat 10(200): 1-203.
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- Amoodi HA, Mick PT, Shipp DB, Friesen LM, Nedzelski JM, Chen JM, Lin VY. The effects of unilateral cochlear implantation on the tinnitus handicap inventory and the influence on quality of life. Laryngoscope. 2011 Jun 6. doi: 10.1002/lary.21851. [Epub ahead of print]
- Andersson G, Vretblad P, Larsen H, Lyttkens L. Longitudinal follow-up of
tinnitus complaints. Arch Oto HNS 2001:127:175-179
- Boyen K1, Başkent D, van Dijk P. The Gap Detection Test: Can It Be Used to Diagnose Tinnitus? .Ear Hear. 2015 Mar 27. [Epub ahead of print]
- Branstetter BF, Weissman JL. The radiologic evaluation of tinnitus. Eur Radiol (2006), 2792-2802
- Chan KH, Jensen EL, Gao D.Laryngoscope. 2017 Nov 6. doi: 10.1002/lary.26851. [Epub ahead of print] Pediatric tinnitus: A clinical perspective
- Chen PY, Liu TC. Within-Subject Analysis of Auditory Brain Stem Responses in Adults With Unilateral Tinnitus. Ear Nose Throat J. 2021 Sep;100(5_suppl):592S-596S. doi: 10.1177/0145561319893847. Epub 2019 Dec 26. PMID: 31875693.
- Choi JS, Yu AJ, Voelker CCJ, Doherty JK, Oghalai JS, Fisher LM. .Prevalence of Tinnitus and Associated Factors Among Asian Americans: Results From a National Sample. Laryngoscope. 2020 Jan 24. doi: 10.1002/lary.28535. [Epub ahead of print]
- Cil ??, Zateri C, G??l? O, Oymak S, Tezcan E..The effect of fibromyalgia treatment on tinnitus. Am J Otolaryngol. 2020 Jan 3:102390. doi: 10.1016/j.amjoto.2020.102390. [Epub ahead of print]
- Cohen D, Perez R. Bilateral myoclonus of the tensor tympani: A case report.
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- Davis, A. and E. A. Rafaie (2000). Epidemiology of tinnitus. Tinnitus Handbook. R. S. Tyler. San Diego, Ca., Singulair.
- Dawes P, Fortnum H, Moore DR, Emsley R, Norman P, Cruickshanks K, Davis A, Edmondson-Jones M, McCormack A, Lutman M, Munro K. A Population Snapshot of 40- to 69-Year Olds in the United Kingdom.Ear Hear. 2014 Feb 10. [Epub ahead of print] Hearing in Middle Age:
- Ding Z, Zhang C, Wang F, Chen J, Liu P, Xue X, Zhou H, Shen W, Han D. Extended high-frequency audiometric analyses of tinnitus patients exhibiting normal hearing on conventional pure-tone audiometry. Acta Otolaryngol. 2022 Aug 30:1-6. doi: 10.1080/00016489.2022.2112972. Epub ahead of print. PMID: 36040853.
- Folmer RL, Griest SE. Chronic tinnitus resulting from head or neck injuries.
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- Golz A, Fradis M, Martzu D, Netzer A and Joachims HZ (2003). "Stapedius
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- Green, M. W. (2001). "The exploding head syndrome." Curr Pain Headache Rep 5(3): 279-280.
- Gristwood RE, Venables WN Otosclerosis and chronic tinnitus. Ann Otol Rhinol
Laryngol 2003 May;112(5):398-403
- Gultekin, S., H. Celik, et al. (2008). "Vascular loops at the cerebellopontine angle: is there a correlation with tinnitus?" AJNR Am J Neuroradiol 29(9): 1746-1749.
- Han JH, Won JY, Hong SK, Kim JH, Kim ES, Kim HJ, Lee HJ.Objective measurement of subjective tinnitus using the acoustic change complex. PLoS One. 2017 Nov 27;12(11):e0188268. doi: 10.1371/journal.pone.0188268. eCollection 2017
- Henry, J. A., K. C. Dennis, et al. (2005). "General review of tinnitus: prevalence, mechanisms, effects, and management." J Speech Lang Hear Res 48(5): 1204-1235.
- Hoare, D. J., et al. (2014). "Amplification with hearing aids for patients with tinnitus and co-existing hearing loss." Cochrane Database Syst Rev 1: CD010151.
- Holmes and Pagdham. Review aper: more than ringing in the ears: a review of tinnitus and its psychosocial impact. J. Clin Nursing 18,2927-2937, 2009
- Kerhle HM and others. Comparison of auditory brainstem response results in normal-hearing patients with and without tinnitus. Arch ORL 2008:134(6) 647-651
- Konig O, Schaette R, Kempter R, Gross M. Course of hearing loss and occurance of tinnitus. Hearing Res. 221, 59-64
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- Lechowicz and others. Tinnitus in patients with hearing loss due to mitochondrial DNA pathogenic variants. Eur Arch Otorhinolaryngol. 2018 Jun 23. doi: 10.1007/s00405-018-5028-y. [Epub ahead of print]
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