The goal of this observational study is to describe the multi-omics characteristics and to learn about the prognostic factors in patients with idiopathic sudden sensorineural hearing loss (SSNHL). The main problems it aims to deal with are:
* if there is a difference in data of exome and targeted sequencing among patients with SSNHL affecting bilateral and unilateral sides, and healthy controls
* if there is a difference in the parameter of MRI among patients with SSNHL affecting bilateral and unilateral sides, and healthy controls
* to find out which factor from multi-omics data relates to outcomes of SSNHL
* to develop the best prognostics model based on the multi-omics data.
Participants will be received audiological tests, blood specimen collection and radiological examination. Researchers will explore the relationship between the multi-omics data and the prognosis and develop the predictive model.