Multivariate analysis of hearing outcomes in patients with idiopathic sudden sensorineural hearing loss

Abstract

Conclusions: Contralateral hearing loss is significantly correlated with poor hearing outcomes in patients with idiopathic sudden sensorineural hearing loss (ISSNHL). Background: The hearing outcome in patients with ISSNHL was analyzed using multiple variables. Methods: A retrospective chart review was conducted using 89 patients with ISSNHL. Patients within 40 dB HL of average hearing levels and/or patients whose hearing loss was restricted to low frequencies were excluded. The influence of pre-existing conditions on hearing outcome was analyzed using a polytomous universal model. Pre-existing conditions analyzed included hyperglycemia, hypercholesterolemia, hypertension, and contralateral hearing loss. In addition, the severity of hearing loss, age group, and the existence of vertigo were analyzed concomitantly. Results: Hearing recovery was significantly reduced in patients with a past history of contralateral hearing loss.

Keywords::

• Contralateral hearing loss
• pre-existing conditions
• polytomous universal model

Declaration of interest: This work was supported by Grants-in-aid for Young Scientists (B) from the Japan Society of the Promotion of Science 21791612. The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.