Acute Vertigo in a Patient with Long-Term Organic Solvent Exposure: Importance of a Comprehensive Audio-Vestibular Test Battery.

Acute Vertigo in a Patient with Long-Term Organic Solvent Exposure: Importance of a Comprehensive Audio-Vestibular Test Battery.:

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Acute Vertigo in a Patient with Long-Term Organic Solvent Exposure: Importance of a Comprehensive Audio-Vestibular Test Battery.

J Am Acad Audiol. 2019 Oct 03;:1-6

Authors: Maheu M, Champoux F, Fuente A

Abstract

BACKGROUND: Ototoxicity induced by organic solvents has been identified in several groups of workers. Little is known, however, about the effects of organic solvents on the vestibular system.

PURPOSE: The aim of the study was to comprehensively assess the vestibular system and auditory functions in a worker exposed to organic solvents.

RESEARCH DESIGN: Both behavioral and physiological auditory and vestibular evaluations were performed.

RESULTS: No auditory-related findings associated with solvent exposure were found. The vestibulo-ocular reflex gain was abnormal for all semicircular canals with significant catch-up saccades, as measured by the video head impulse test. The cervical vestibular evoked myogenic potentials was absent in the right ear and small but replicable in the left ear. Ocular vestibular evoked myogenic potential were bilaterally absent.

CONCLUSIONS: The results suggest a case of vestibulotoxicity induced by a long history of organic solvent exposure. We suggest that solvent-exposed individuals should be evaluated with a comprehensive battery of auditory and vestibular tests.

PMID: 31589136 [PubMed - as supplied by publisher]