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Contralateral delayed endolymphatic hydrops: Clinical features and long term outcome.
Andrea Albera1, Andrea Canale2, Marco Boldreghini3
1Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy.
Journal of Otology
|September 22, 2021
Summary
Contralateral delayed endolymphatic hydrops (CDEH) is a rare Ménière's disease variant. Most patients experience symptom resolution, with vertigo often resolving and severe hearing loss in the better ear being uncommon.
Area of Science:
- Otolaryngology
- Neurology
- Audiology
Background:
- Contralateral delayed endolymphatic hydrops (CDEH) presents as fluctuating hearing loss or vertigo.
- It mimics Ménière's disease and appears after severe hearing loss in the opposite ear.
Purpose of the Study:
- To detail the clinical characteristics and progression of CDEH.
- To analyze the outcomes in patients diagnosed with CDEH.
Main Methods:
- Retrospective analysis of 57 CDEH patients.
- Evaluations included otoscopy, audiometry, vestibular tests, and MRI with gadolinium.
Main Results:
- CDEH was classified as definite (42%), probable (4%), or possible (54%).
- At follow-up, 70% of patients were free of vertigo and fluctuating hearing loss.
- Among those with persistent symptoms, fluctuating hearing loss was most common.
Conclusions:
- CDEH is a rare Ménière's disease subtype, often presenting with fluctuating low-frequency hearing loss.
- Long-term prognosis is favorable for vertigo resolution.
- Severe hearing loss in the unaffected ear is rare in CDEH.
