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

    Research output: Contribution to journalArticleResearchpeer-review

    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.

    LanguageEnglish
    Pages768-771
    Number of pages4
    JournalEar and Hearing
    Volume33
    Issue number6
    DOIs
    Publication statusPublished - Nov 2012

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    Vestibular Aqueduct
    Vestibular Evoked Myogenic Potentials
    Air
    Bilateral Hearing Loss
    Ear
    Reflex
    Healthy Volunteers
    Reference Values

    Cite this

    Taylor, Rachael L. ; Bradshaw, Andrew P. ; Magnussen, John S. ; Gibson, William P R ; Halmagyi, G. Michael ; Welgampola, Miriam S. / Augmented ocular vestibular evoked myogenic potentials to air-conducted sound in large vestibular aqueduct syndrome. In: Ear and Hearing. 2012 ; Vol. 33, No. 6. pp. 768-771.
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    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.",
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    Augmented ocular vestibular evoked myogenic potentials to air-conducted sound in large vestibular aqueduct syndrome. / Taylor, Rachael L.; Bradshaw, Andrew P.; Magnussen, John S.; Gibson, William P R; Halmagyi, G. Michael; Welgampola, Miriam S.

    In: Ear and Hearing, Vol. 33, No. 6, 11.2012, p. 768-771.

    Research output: Contribution to journalArticleResearchpeer-review

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    T1 - Augmented ocular vestibular evoked myogenic potentials to air-conducted sound in large vestibular aqueduct syndrome

    AU - Taylor, Rachael L.

    AU - Bradshaw, Andrew P.

    AU - Magnussen, John S.

    AU - Gibson, William P R

    AU - Halmagyi, G. Michael

    AU - Welgampola, Miriam S.

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    AB - 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.

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