High-frequency semicircular canal deficit affects postural control in hearing-impaired children - 16/10/20

Doi : 10.1016/j.anorl.2020.10.006

P. Reynard ^a,^b,^c,⁎ , E. Ionescu ^a,^c, N. Goulème ^a,^b, J. Ortéga-Solis ^a, K. Spruyt ^d, H. Thai-Van ^a,^b,^c
^a Service d’audiologie et explorations otoneurologiques, CHU Édouard-Herriot, Lyon, France
^b Université Claude-Bernard Lyon 1, Lyon, France
^c Paris Hearing Institute, Institut Pasteur, Inserm U1120, Paris, France
^d Centre de recherche en neurosciences de Lyon, INSERM U1028, CNRS UMR 5292, université Claude-Bernard Lyon 1, Lyon, France

^⁎Corresponding author at: Service d’audiologie et explorations otoneurologiques, CHU Édouard-Herriot, Lyon, France.Service d’audiologie et explorations otoneurologiques, CHU Édouard-HerriotLyonFrance

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Abstract

Objectives

The present study aimed to analyse the impact of vestibulo-ocular reflex (VOR) gain deficit on postural control (PC) in children with sensorineural hearing loss.

Methods

A retrospective study included 55 children with sensorineural hearing loss between 4 and 17 years of age. The Video Head Impulse Test (vHIT®) was used to assess semicircular canal function. PC was assessed on the Balance Quest® posturographic platform testing sensory organisation.

Results

Spatial and temporal postural parameters (area and mean speed of centre of pressure oscillation, spectral power index) in the OKN-U condition (optokinetic with unstable platform) were significantly better in children with than without VOR deficit.

Conclusion

Posturographic exploration in the OKN-U condition can screen for semicircular canal deficit in hearing-impaired children. VOR deficit also seems to predict PC deficit.

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Keywords : Semicircular canal deficit, Vestibulo-ocular reflex, Postural control, Video Head Impulse Test, Posturographic assessment, Hearing-impaired children