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Related Experiment Videos

Unilateral endolymphatic hydrops: what about the contralateral ear?

F Salvinelli1, M Trivelli, F Greco

  • 1Campus Biomedico University, Department of Otolaryngology, V. Emilio Longoni, 69, 00155 Roma, Italy.

Revue De Laryngologie - Otologie - Rhinologie
|October 4, 2002
PubMed
Summary

Early recognition of Meniere

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Area of Science:

  • Otolaryngology
  • Neurology
  • Diagnostic Imaging

Background:

  • Early diagnosis of Meniere's disease (MD) in the contralateral ear is crucial but controversial.
  • Unilateral MD can progress to bilateral disease over time.

Purpose of the Study:

  • To evaluate diagnostic criteria for incipient bilateral Meniere's disease.
  • To assess the utility of MRI and glycerol tests in diagnosing contralateral MD.

Main Methods:

  • Forty-nine patients with unilateral MD were assessed.
  • Methods included audiometry, stapedial reflex, glycerol test, Auditory Brainstem Response (ABR), and MRI in 14 patients.

Main Results:

  • 27 patients (55%) showed hearing changes in the contralateral ear; only 7 met criteria for bilateral MD.

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  • Contralateral ear involvement averaged 7 years after initial diagnosis.
  • Glycerol test was positive in only 4 unilateral MD cases; MRI visualization of endolymphatic structures was limited.

    • Conclusions:

    • MRI should be part of the MD diagnostic protocol, with future improvements aiding inner ear structure visualization.
    • Glycerol test has limited utility.
    • A conservative surgical approach for unilateral MD is advised due to the risk of bilateral progression.