Augmented ocular vestibular evoked myogenic potentials to air-conducted sound in large vestibular aqueduct syndrome

Rachael L. Taylor, Andrew P. Bradshaw, John S. Magnussen, William P R Gibson, G. Michael Halmagyi, Miriam S. Welgampola*

*Corresponding author for this work

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    Abstract

    Objective: To demonstrate the value of recording air-conducted ocular Vestibular Evoked Myogenic Potentials (oVEMP) in a patient with bilaterally enlarged vestibular aqueducts. Design: Cervical VEMP and oVEMP were recorded from a patient presenting with bilateral hearing loss and imbalance, attributable to large vestibular aqueduct syndrome. The stimuli were air-conducted tone bursts at octave frequencies from 250 to 2000 Hz. Amplitudes and thresholds were measured and compared with the normal response range of 32 healthy control subjects. Results: oVEMP reflexes demonstrated pathologically increased amplitudes and reduced thresholds for low-frequency tone bursts. Cervical VEMP amplitudes and thresholds were within normal limits for both ears across all frequencies of stimulation. Conclusions: This study is the first to describe the augmentation of AC oVEMPs in an adult with large vestibular aqueduct syndrome.

    Original languageEnglish
    Pages (from-to)768-771
    Number of pages4
    JournalEar and Hearing
    Volume33
    Issue number6
    DOIs
    Publication statusPublished - Nov 2012

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