Key Points
· A total of 4290 patients with sudden sensorineural hearing loss from 23 studies were included in this meta-analysis.Vertigo may be a negative factor in sudden sensorineural hearing loss. Vertigo was significantly associated with poorer hearing recovery (OR = 2.13)
· the combined treatment regimen has better efficacy in patients with sudden sensorineural hearing loss with vertigo. The association was attenuated in the subgroup treated with hyperbaric oxygen chamber therapy(OR= 1.76) and intracameral steroid injections(OR= 1.62).
·More original literature is required to clearly evaluate the patient’s age, underlying disease, and initial level of hearing loss in order to quantify the specificity of the sudden sensorineural hearing loss population. Furthermore, it elucidates the impact of vertigo on the prognosis of sudden sensorineural hearing loss.·