Efficacy of Various Corticosteroid Treatment Modalities for the Initial Treatment of Idiopathic Sudden Hearing Loss: A Prospective Randomized Controlled Trial.

Audiology & Neuro-otology
Busheng TongMaoli Duan

Abstract

To evaluate the efficacy of systemic and intratympanic steroid treatment in patients with idiopathic sudden sensorineural hearing loss (ISSNHL). Ninety patients who met the inclusion criteria were randomly divided into 3 groups (n = 30 per group). Group I patients were given oral methylprednisolone (MEPD) tablets, group II received intravenous MEPD injection, and group III received intratympanic MEPD injection. Pure-tone average (PTA) hearing threshold was recorded before and after treatment as well as 1 month later. The general efficacy rate was the ratio of patients whose hearing improved by >10 dB in each group. Thirty-two of the 60 patients (53.3%) in groups I and II together showed a hearing improvement of >10 dB hearing level (HL) in the pure-tone audiogram, compared to 21 patients (70%) in group III, respectively. The mean improvements were 16.1, 14.3, and 21.6 dB HL measured in Groups I, II, and III, respectively. Both the general efficacy rate and hearing improvement were significantly greater in group III than in groups I and II. Our study showed that intratympanic injection rendered better treatment efficacy than systemic administration.

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