Evaluation of Audiovestibular Involvement in Patients with Psoriasis.

BACKGROUND

Little is known about audiovestibular function in psoriasis, a chronic systemic inflammatory disease that affects 2% of the world's population.

OBJECTIVES

To investigate audiovestibular function in patients with psoriasis.

METHODS

In this prospective case-control trial, we enrolled 33 patients with psoriasis and 30 healthy controls. Audiologic testing included audiometry, tympanometry, and otoacoustic emissions recording. The vestibular investigation consisted of a dizziness handicap inventory questionnaire, a complete clinical vestibular examination, and video head impulse testing.

RESULTS

The psoriasis group showed significantly higher average hearing thresholds in both ears at all frequencies. Otoacoustic measurements differed significantly at 3000 Hz in the right (P = 0.026) and left ear (P = 0.034). The average dizziness handicap score was considerably higher in the psoriasis group, with a mean difference of 7.70 (P = 0.025). The number of patients with abnormal right anterior semicircular canal gain values was significantly higher in the psoriasis group (P = 0.047). Saccade analysis in the psoriasis group showed significantly higher number of patients with covert corrective saccades of the left posterior canal (P = 0.037) and significantly higher number of patients with abnormal interaural difference of corrective saccades in the plane of the right anterior-left posterior canals (P = 0.035).

CONCLUSIONS

The study demonstrates an association between psoriasis and audiovestibular impairment, which can affect quality of life. These results suggest that patients with psoriasis may be evaluated with audiometry for possible hearing loss. Vestibular testing may be pursued as clinically indicated.