Inclusion and Exclusion Criteria
Inclusion criteria: 1) first-onset SSNHL; 2) unilateral hearing loss; 3)
a time between onset and treatment ≤ 60 days; 3) ipsilateral newly
developed tinnitus associated with SSNHL; 4) normal hearing or
age-related hearing loss in the contralateral ear. No restrictions on
gender and age were set.
Exclusion criteria: 1) recurrent sudden deafness, pregnancy, or middle
ear infections; 2) a definitive cause of deafness identified during
treatment; 2) a history of tinnitus; 3) bilateral tinnitus; 4) no
treatment according to the Chinese Guidelines for Sudden Deafness during
the inpatient process for any reason
(17).