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Vestibular evoked myogenic potentials in response to skull taps for patients with vestibular neuritis
Karolinska Hospital.
2003 (English)In: Journal of Vestibular Research-Equilibrium & Orientation, ISSN 0957-4271, E-ISSN 1878-6464, Vol. 13, no 2-3, 121-130 p.Article in journal (Refereed) Published
Abstract [en]

In recent years it has been demonstrated that loud clicks generate short latency vestibular evoked myogenic potentials (VEMP). It has also been demonstrated that skull tap stimulation evokes similar VEMP. In the present study, the differences between the click-induced and the skull-tap induced VEMP were studied in 18 patients at onset of vestibular neuritis. Gentle skull taps were delivered manually above each ear on the side of the skull and on the forehead midline. The muscular responses were recorded over both sternocleidomastoid muscles using skin electrodes. Abnormal skull tap VEMP were found in the majority of the patients (10/18, 56%). However, only 4/18 (22%) showed asymmetry in the click-induced VEMP. The high percentage of abnormal skull tap VEMP might suggest that this response is not only dependent on the inferior division of the vestibular nerve, because the inferior division of this nerve is usually spared in vestibular neuritis. Moreover, the patients with abnormal skull tap VEMP differed from those with normal VEMP in their settings of the subjective visual horizontal with static head tilt in the roll plane. This might suggest that skull tap VEMP are (also) related to utricular function.

Place, publisher, year, edition, pages
2003. Vol. 13, no 2-3, 121-130 p.
Keyword [en]
vestibular neuritis, VEMP, skull taps, sacculus, utriculus, vestibulocollic
National Category
Physiology
Identifiers
URN: urn:nbn:se:kth:diva-45645ISI: 000188378500007PubMedID: 14757915OAI: oai:DiVA.org:kth-45645DiVA: diva2:452828
Note
QC 20111102Available from: 2011-10-31 Created: 2011-10-31 Last updated: 2017-12-08Bibliographically approved

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