The goal of this clinical trial is to investigate the factors and mechanisms underlying tinnitus generation and chronification in patients with sudden sensorineural hearing loss (SSNHL) . The main questions it aims to answer are: * What are the peripheral and central influencing factors that contribute to tinnitus in patients with SSNHL? * Can serum metabolic biomarkers be identified to predict and monitor tinnitus prognosis in these patients? Participants in this study will include patients with SSNHL and tinnitus, patients with SSNHL without tinnitus, and healthy subjects. They will be asked to undergo a series of assessments, including audiological tests, vestibular function examinations, and functional magnetic resonance imaging (fMRI). Additionally, blood samples will be collected for metabolomics analysis. Investigators will compare the brain functional states and serum metabolite profiles of patients with SSNHL and tinnitus to those without tinnitus. Morever, tinnitus symptom characteristics, audiological outcomes, and brain functional states will be assessed during time.
Age range
18 Years – 65 Years
Sex
ALL
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Brain function states
Timeframe: Acute phase (within 5 days after onset), 1 month, 3 months, and 6 months after onset
Serum metabolomics
Timeframe: Acute phase (within 5 days after onset)