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[Delayed endolymphatic hydrops: an analysis of 12 cases]
A Casani1, B Fattori, S Berrettini
1Clinica Otorinolaringoiatrica, Università di Pisa.
Summary
Delayed Endolymphatic Hydrops (DEH) is a rare condition where profound hearing loss is followed years later by vertigo. This review examines 12 DEH cases, highlighting diagnostic methods and potential triggers like viral infections.
Area of Science:
- Otolaryngology
- Neurology
- Immunology
Context:
- Delayed Endolymphatic Hydrops (DEH) presents with an initial profound sensorineural hearing loss, followed years later by otologic symptoms.
- DEH can manifest as ipsilateral (affecting the deaf ear) or contralateral (affecting the previously normal ear) endolymphatic hydrops.
- The diagnostic process involves clinical history, audio-vestibular tests, and imaging to detect endolymphatic hydrops.
Purpose:
- To review 12 cases of Delayed Endolymphatic Hydrops (DEH) to understand its clinical presentation, diagnostic findings, and potential etiologies.
- To analyze the delay between initial hearing loss and subsequent vertigo onset in DEH patients.
- To investigate potential autoimmune and viral triggers for DEH.
Summary:
- This review analyzed 12 DEH cases (7 ipsilateral, 5 contralateral), with ages ranging from 19 to 79.
- The average delay between hearing loss and vertigo onset was 12 years, with viral infections suspected in 6 cases.
- Audio-vestibular tests revealed reduced responses in affected ears, and immunological studies showed abnormalities in some patients.
Impact:
- This study provides insights into the long-term progression and varied presentations of Delayed Endolymphatic Hydrops.
- Findings emphasize the importance of comprehensive audio-vestibular evaluation for diagnosing DEH.
- Identifying potential triggers like viral infections may guide future research and treatment strategies for DEH.