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08.02.2020 | Otology

Electrophysiological and inner ear MRI findings in patients with bilateral vestibulopathy

Zeitschrift:
European Archives of Oto-Rhino-Laryngology
Autoren:
Michael Eliezer, Charlotte Hautefort, Christian Van Nechel, Ulla Duquesne, Jean-Pierre Guichard, Philippe Herman, Romain Kania, Emmanuel Houdart, Arnaud Attyé, Michel Toupet
Wichtige Hinweise
Michael Eliezer and Charlotte Hautefort contributed equally to the manuscript.

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Abstract

Purpose

Bilateral vestibulopathy (BV) is an uncommon disorder and the etiology remained idiopathic in most cases. Delayed 3D-FLAIR sequences have provided new insights into various inner ear diseases, allowing the evaluation of the endolymphatic space and the permeability of the blood–labyrinthine barrier (BLB). The aim of this study was to assess both the morphology of the endolymphatic space and the permeability of the BLB in patients with BV as evaluated by delayed 3D-FLAIR sequences.

Methods

In this retrospective study, we performed 3D-FLAIR sequences 4 h after administering contrast media to 42 patients with BV. Two radiologists independently evaluated the morphology of the endolymphatic space (either vestibular atelectasis or endolymphatic hydrops) and the permeability of the BLB.

Results

Morphologic anomalies of the endolymphatic space and vestibular blood–labyrinthine barrier impairment were observed in 59.6% of patients with BV. Bilateral vestibular atelectasis (VA) was found in 21 patients (50%), involving only the utricle and all three ampullas while the saccule was always observed with no sign of collapse: idiopathic BV (n = 19), aminoglycoside administration (n = 1) and few days following abdominal surgery (n = 1). One patient had bilateral vestibular malformation. BLB impairment was observed in five patients (11.9%): paraneoplastic (n = 1), lymphoma (n = 1), autoimmune (n = 1), and vestibular “neuritis” (n = 2). Seventeen patients (40.4%) had normal MRI with no endolymphatic space anomaly or BLB impairment.

Conclusion

Patients with BV presented with morphologic anomalies of the endolymphatic space or BLB impairment in 59.6% of patients.

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