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Inner ear involvement in Behçet's disease.

Ahmet Emre Süslü1, Mualla Polat, Serap Köybaşi

  • 1Department of Otorhinolaryngology, Abant Izzet Baysal University Faculty of Medicine, Gölköy/Bolu, Turkey. aesuslu@yahoo.com

Auris, Nasus, Larynx
|October 30, 2009
PubMed
Summary
This summary is machine-generated.

Behçet's disease (BD) patients often experience sensorineural hearing loss, particularly affecting high frequencies. Cochlear involvement is indicated by elevated hearing thresholds and reduced otoacoustic emission signals, even with normal speech-frequency hearing.

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Area of Science:

  • Oto-neurology
  • Rheumatology
  • Audiology

Background:

  • Behçet's disease (BD) is a multisystemic inflammatory disorder.
  • Potential neurological and otological manifestations of BD are not fully understood.
  • Cochlear involvement can be an early indicator of systemic disease progression.

Purpose of the Study:

  • To evaluate cochlear function and identify hearing loss patterns in BD patients.
  • To compare audiological findings in BD patients versus healthy controls.
  • To investigate correlations between clinical features and audiological status in BD.

Main Methods:

  • Audiological assessment including pure-tone audiometry (250-16000 Hz) and distortion product otoacoustic emissions (DPOAE) was performed.
  • Study included 42 patients with BD and 24 age- and sex-matched healthy controls.
  • Statistical analysis compared audiological parameters between groups and correlated them with clinical manifestations.

Main Results:

  • Bilateral sensorineural hearing loss was diagnosed in 64.3% of BD patients.
  • BD patients exhibited significantly higher hearing thresholds across most frequencies, especially high frequencies, compared to controls (p<0.05).
  • Lower DPOAE distortion products and signal-noise ratios (SNR) in BD patients suggest impaired outer hair cell function.

Conclusions:

  • Cochlear involvement is present in Behçet's disease, even when speech-frequency hearing remains within normal limits.
  • Elevated high-frequency hearing thresholds and reduced DPOAE SNR are key indicators of cochlear dysfunction in BD.
  • No significant correlation was found between clinical manifestations and audiological parameters in this cohort.