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[Clinical features in patients with delayed endolymphatic hydrops].

N Takeda1, I Koizuka, S Nishiike

  • 1Department of Otolaryngology, Osaka University Medical School.

Nihon Jibiinkoka Gakkai Kaiho
|February 20, 1999
PubMed
Summary

Delayed endolymphatic hydrops (DEH) presents differently based on onset side. Ipsilateral DEH often starts with vertigo in younger patients, while contralateral DEH involves hearing loss at older ages.

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Area of Science:

  • Otolaryngology
  • Neurology
  • Audiology

Context:

  • Delayed endolymphatic hydrops (DEH) is a condition affecting hearing and balance.
  • Understanding DEH clinical features is crucial for diagnosis and management.
  • Juvenile unilateral deafness is a key presentation in some DEH patients.

Purpose:

  • To analyze and report the clinical features of patients diagnosed with delayed endolymphatic hydrops (DEH).
  • To differentiate between ipsilateral and contralateral DEH based on onset age and symptoms.
  • To investigate potential differences in pathophysiology between DEH and Meniere's disease.

Summary:

  • This study examined 23 DEH patients, classifying them into 15 ipsilateral and 8 contralateral cases.
  • Ipsilateral DEH typically presented with vertigo at younger ages (<30 years), whereas contralateral DEH showed hearing loss at older ages (>40 years).

Related Experiment Videos

  • Electrophysiological findings, specifically dominant negative summating potential in the better-hearing ear, were more prevalent in contralateral DEH (60%) compared to ipsilateral DEH (20%), suggesting endolymphatic hydrops in the better-hearing ear for contralateral cases.

    • Impact:

    • Findings suggest distinct pathophysiological mechanisms for ipsilateral and contralateral DEH.
    • The study highlights the importance of considering the side of DEH onset for predicting symptom presentation and age of onset.
    • Results contribute to differentiating DEH from Meniere's disease and improving diagnostic accuracy.