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Tinnitus and brain MRI findings in Japanese elderly

Saiko Sugiura1, Yasue Uchida, Tsutomu Nakashima

  • 1Department of Otorhinolaryngology, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan. saiko@ncgg.go.jp

Acta Oto-Laryngologica
|April 19, 2008
PubMed
Abstract

Insights

This study found that cerebral infarction, a type of stroke, is linked to a lower likelihood of experiencing tinnitus (ringing in the ears). Specific brain regions affected by infarction showed a stronger association with reduced tinnitus prevalence.

Area of Science:

  • Neurology
  • Otolaryngology
  • Radiology

Background:

  • Tinnitus, the perception of sound without external source, affects millions globally.
  • The underlying pathophysiology of tinnitus is complex and not fully understood.
  • Cerebral infarction (stroke) impacts brain structure and function, potentially influencing sensory perception.

Purpose of the Study:

  • To investigate the association between tinnitus and various brain MRI findings.
  • Specifically examining cerebral infarction, brain atrophy, ventricular dilatation, and white matter lesions.
  • To explore potential neurophysiological links between brain structure and tinnitus.

Main Methods:

  • Cross-sectional population-based study in Aichi prefecture, Japan.
  • Involved 2193 participants aged 41-82 years.
  • Utilized questionnaires, audiometry, and brain Magnetic Resonance Imaging (MRI).

Main Results:

  • Cerebral infarction showed a significant inverse association with tinnitus (OR=0.649).
  • Infarctions in the basal ganglia, thalamus, and pons were particularly linked to lower tinnitus prevalence.
  • Brain atrophy, ventricular dilatation, and white matter lesions did not significantly affect tinnitus prevalence.

Conclusions:

  • Cerebral infarction is inversely associated with tinnitus.
  • This relationship may be explained by neurophysiological mechanisms.
  • Specific brain regions affected by stroke play a role in tinnitus occurrence.

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