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Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention
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[The reclassification of sudden deafness].

X Ma1, Glbst Maimaitiaili2, Y Y Jing1

  • 1Department of Otolaryngology,People's Hospital Peking University,Beijing,100044,China.

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi = Journal of Clinical Otorhinolaryngology Head and Neck Surgery
|May 26, 2018
PubMed
Summary

Sudden deafness classification into rise, decline, and consistent types aids in predicting hearing prognosis. Early treatment (0-7 days) significantly improves outcomes for sudden hearing loss.

Keywords:
pathogenesissudden deafnesssudden deafness classification

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Area of Science:

  • Otolaryngology
  • Audiology
  • Neurology

Background:

  • Sudden deafness is a complex condition with varied etiologies.
  • Existing classifications may not fully capture prognostic indicators.
  • Understanding subtypes is crucial for targeted treatment.

Purpose of the Study:

  • To reclassify sudden deafness, focusing on flat and total types.
  • To identify relationships between new classifications and hearing prognosis.
  • To analyze factors influencing hearing outcomes in sudden deafness patients.

Main Methods:

  • Analysis of 192 sudden deafness cases, with 159 specifically examined.
  • Classification into curve types: rise, decline, and consistent.
  • Multifactorial regression analysis to assess influencing factors.

Main Results:

  • Early treatment (0-7 days) showed a significant positive impact on prognosis (OR=4.291).
  • The 'rise' type curve demonstrated a significantly better prognosis compared to total deafness (OR=9.692).
  • Age over 45 did not show a statistically significant difference in prognosis.

Conclusions:

  • Sudden deafness can be classified into rise, decline, and consistent types based on pathogenesis.
  • The 'rise' type may involve inner ear hydrops, 'decline' type hair cell damage, and 'consistent' type vascular stria damage.
  • Prognosis appears poorer for certain subtypes, highlighting the need for tailored therapeutic strategies.