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1.
Trends Hear ; 22: 2331216518796403, 2018.
Article in English | MEDLINE | ID: mdl-30213235

ABSTRACT

Since somatic or somatosensory tinnitus (ST) was first described as a subtype of subjective tinnitus, where altered somatosensory afference from the cervical spine or temporomandibular area causes or changes a patient's tinnitus perception, several studies in humans and animals have provided a neurophysiological explanation for this type of tinnitus. Due to a lack of unambiguous clinical tests, many authors and clinicians use their own criteria for diagnosing ST. This resulted in large differences in prevalence figures in different studies and limits the comparison of clinical trials on ST treatment. This study aimed to reach an international consensus on diagnostic criteria for ST among experts, scientists and clinicians using a Delphi survey and face-to-face consensus meeting strategy. Following recommended procedures to gain expert consensus, a two-round Delphi survey was delivered online, followed by an in-person consensus meeting. Experts agreed upon a set of criteria that strongly suggest ST. These criteria comprise items on somatosensory modulation, specific tinnitus characteristics, and symptoms that can accompany the tinnitus. None of these criteria have to be present in every single patient with ST, but in case they are present, they strongly suggest the presence of ST. Because of the international nature of the survey, we expect these criteria to gain wide acceptance in the research field and to serve as a guideline for clinicians across all disciplines. Criteria developed in this consensus paper should now allow further investigation of the extent of somatosensory influence in individual tinnitus patients and tinnitus populations.


Subject(s)
Consensus , Somatosensory Disorders/diagnosis , Tinnitus/diagnosis , Delphi Technique , Diagnosis, Differential , Female , Humans , Male , Severity of Illness Index , Somatosensory Disorders/complications , Tinnitus/etiology
2.
Audiol Neurootol ; 13(3): 153-60, 2008.
Article in English | MEDLINE | ID: mdl-18075244

ABSTRACT

In order to investigate whether myofascial trigger points can modulate tinnitus, as well as the association between tinnitus and myofascial trigger points, 94 individuals with and 94 without tinnitus, matched by age and gender, were analyzed by means of bilateral digital pressure of 9 muscles. Temporary modulation of tinnitus was frequently observed (55.9%) during digital pressure, mainly in the masseter. The rate of tinnitus modulation was significantly higher on the same side of the myofascial trigger point subject to examination in 6 out of 9 muscles. An association between tinnitus and the presence of myofascial trigger points was observed (p < 0.001), as well as a laterality association between the ear with the worst tinnitus and the side of the body with more myofascial trigger points (p < 0.001). Thus, this relationship could be explained not only by somatosensory-auditory system interactions but also by the influence of the sympathetic system.


Subject(s)
Facial Neuralgia/physiopathology , Tinnitus/prevention & control , Tinnitus/physiopathology , Adult , Aged , Aged, 80 and over , Facial Neuralgia/diagnosis , Facial Neuralgia/therapy , Female , Functional Laterality , Humans , Male , Middle Aged , Patient Selection , Reference Values
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