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Published in: Journal of Neurology 2/2021

01-02-2021 | Nystagmus | Original Communication

Clinical characteristics in unilateral vestibular atelectasis

Authors: Morgane Marc, Charlotte Hautefort, Jean-Pierre Guichard, Philippe Herman, Emmanuel Houdart, Michel Toupet, Michael Eliezer

Published in: Journal of Neurology | Issue 2/2021

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Abstract

Introduction

Unilateral vestibular atelectasis (UVA), an entity first described by Merchant and Schuknecht in 1988, has rarely been reported in vivo as of yet. We specify here the clinical characteristics of 22 patients diagnosed with UVA.

Materials and methods

Patients with a radiological diagnosis of UVA who underwent delayed inner ear MRI were included between April 2017 and January 2020. Full clinical testing including ocular infrared video-oculography, oVEMPs, cVEMPs, vHIT, bithermal caloric testing and auditory testing was performed.

Results

There were 13 men and 9 women, of mean age 58.6 ± 13.7 years. Onset was more frequently sudden (73%) than insidious (27%) though both clinical presentations were reported, and positional vertigo was described in 41% of cases. There were only two (9%) patients reporting Tullio’s phenomenon. Vestibular testing showed that in 90% of cases, there was utricular dysfunction on oVEMP, while in 77% of cases, saccular function was preserved on cVEMP. vHIT showed high-velocity canal function impairment in all 22 patients: 8 patients (36%) had one impaired canal, 5 (23%) had two and 9 (41%) had all three canals affected. Caloric tests found complete unilateral areflexia, in 65% of tested cases, and partial deficiency in 35% of cases. Nine patients (40%) displayed asymmetrical hearing.

Conclusion

We described in this study the various clinical presentations of a disease rarely reported in vivo, UVA. Initial clinical presentation can appear similar to an acute vestibular deficit, a recurrent positional vertigo, or fluctuating dizziness.
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Metadata
Title
Clinical characteristics in unilateral vestibular atelectasis
Authors
Morgane Marc
Charlotte Hautefort
Jean-Pierre Guichard
Philippe Herman
Emmanuel Houdart
Michel Toupet
Michael Eliezer
Publication date
01-02-2021
Publisher
Springer Berlin Heidelberg
Keyword
Nystagmus
Published in
Journal of Neurology / Issue 2/2021
Print ISSN: 0340-5354
Electronic ISSN: 1432-1459
DOI
https://doi.org/10.1007/s00415-020-10220-y

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