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. 2022 Sep-Oct;88(5):675-682.
doi: 10.1016/j.bjorl.2020.09.006. Epub 2020 Oct 16.

Evaluation of the vestibulo-ocular reflex in patients with chronic otitis media

Andreza Tomaz  1 , Rafael da Costa Monsanto  2 , Flavia Salvaterra Cusin  3 , Ana Luiza Papi Kasemodel  2 , Norma de Oliveira Penido  2
Affiliations

Evaluation of the vestibulo-ocular reflex in patients with chronic otitis media

Andreza Tomaz et al. Braz J Otorhinolaryngol. 2022 Sep-Oct.

Abstract

Introduction: In recent years, scientific evidence has shown that chronic otitis media may cause balance and vestibular dysfunction.

Objective: To compare the results of the video head impulse test (gain and symmetry of the vestibulo-ocular reflex and presence of covert and overt saccades) in patients with chronic otitis media and controls.

Methods: Cross-sectional study of patients with chronic otitis media (study group), aged between 18 and 60 years. The patients in the study group were further divided according to the chronic otitis media type as (1) non-suppurative, (2) suppurative, and (3) cholesteatomatous. For the comparative analysis, we selected volunteers with no history of ear and vestibular diseases (control group), who met the same inclusion and exclusion criteria as the study group. Patients in both groups underwent a video head impulse test.

Results: The study group consisted of 96 volunteers, and the control group of 61 individuals. The prevalence of vestibular symptoms was 66% in the study group and 3.2% in the control group (p < 0.001). The results show a higher prevalence of changes in the vestibulo-ocular reflex gain (22.9%) and corrective saccades (12.6%) in the chronic otitis media group compared to the control group (p < 0.001). Despite the higher prevalence of changes in gain, the average vestibulo-ocular reflex gains in the chronic otitis media groups were within the pre-defined values ​​of normality; however, the mean vestibulo-ocular reflex gain in the anterior semicircular canal was statistically worse in the cholesteatomatous chronic otitis media group compared to controls (p < 0.001). Regarding the corrective saccades, the prevalence of saccades was statistically higher in the suppurative and cholesteatomatous chronic otitis media subgroups compared to the non-suppurative and control groups (p = 0.004).

Conclusion: The present study demonstrated that chronic otitis media is associated with a higher prevalence of vestibular symptoms and also a higher prevalence of changes in gain and corrective saccades when compared to controls.

Keywords: Head impulse test; Otitis media; Semicircular canals; Vestibular function tests; Vestibulo-ocular reflex.

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Figures

Figure 1
Figure 1
Distribution of the results obtained in each semicircular canal on the affected/worst side of the chronic otitis media subgroups compared to the results obtained in the control group. CNSOM, Chronic Non-Suppurative Otitis Media; CSOM, Chronic Suppurative Otitis Media; Cholesteatoma, Cholesteatomatous Chronic Otitis Media. *Statistically significant difference (p < 0.05).
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