CINAHL, and the Cochrane Library comparing intratympanic versus systemic glucocorticoid
therapy for ISSNHL were meta-analyzed using RevMan 5.3. The primary outcome of interest
was improvement in pure tone average (PTA) threshold. Results: Six trials involving 248
patients receiving intratympanic steroids and 236 receiving systemic steroids were meta-
analyzed. PTA thresholds were similar between the 2 groups at 3 months after therapy …