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  • Title: [Efficacy of intratympanic steroid treatment for idiopathic sudden sensorineural hearing loss after failure of intravenous steroid treatment].
    Author: Kawano T, Matsuura M, Ishitoya J, Oridate N.
    Journal: Nihon Jibiinkoka Gakkai Kaiho; 2014 Jun; 117(6):802-8. PubMed ID: 25102738.
    Abstract:
    This study investigated the efficacy of intratympanic steroid (ITS) therapy as a salvage treatment for idiopathic sudden sensorineural hearing loss after failure of intravenous steroid (IVS) therapy. Systemic steroid therapy is the only standard drug therapy. However, ethically, we could not simply compare ITS with IVS. Conventionally, we have treated idiopahic sudden sensorineural hearing loss patients after failure of systemic steroid therapy with the double combined therapy IVS and hyperbaric oxygen (HBO), as the salvage modality. We examined the effect of ITS by adding it to the double combined therapy with IVS and HBO. Retrospectively, we clinically examined the effect of double combined therapy with IVS and HBO (A group) for 31 patients (12 men and 19 women) (median age: 54 years) with sudden hearing loss after failure of systemic steroid therapy between June, 2003 and July, 2010. Prospectively, we also examined clinically the effect of triple combined therapy with IVS and HBO, ITS (B group) for 29 patients (17 men and 12 women) (median age: 51 years) with sudden hearing loss after failure of systemic steroid therapy between August, 2010 and April, 2012. In the examination of patients treated within 30 days from the onset, one patient (3.2%) demonstrated remarkable recovery, 6 patients (19.4%) demonstrated mild recovery, while no change was noted in 24 patients (77.4%) in the A group. In the B group, 5 patients (17.2%) demonstrated complete recovery, 3 patients (10.3%) demonstrated remarkable recovery, mild recovery was seen in 14 patients (48.3%), and the remaining 7 patients (24.1%) showed no change. There was a significant difference (p < 0.05) between the A group and the B group. Furthermore, the hearing improvement in group B in five pure tone average was significantly better than in the group A (p < 0.05). We concluded that the B group demonstrated better hearing improvement than the A group. Therefore, ITS could be effective for idiopathic sudden sensorineural hearing loss patients after failure of systemic steroid therapy.
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