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Updated: Jun 6, 2026

A Comparative Study of Drug Delivery Methods Targeted to the Mouse Inner Ear: Bullostomy Versus Transtympanic Injection
Published on: March 8, 2017
Early transtympanic steroid injection in patients with 'poor prognosis' idiopathic sensorineural sudden hearing loss
Yide Zhou1, Hongliang Zheng, Qing Zhang
1Department of Otolaryngology, Head and Neck Surgery, Changhai Hospital, Shanghai, China. ydzhou111@163.com
Objective:
The present trial is aimed to evaluate the effectiveness of early transtympanic steroid injection in patients with 'poor prognosis' idiopathic sensorineural sudden hearing loss (ISSHL).
Methods:
Seventy-six patients, diagnosed as having ISSHL with 'poor prognosis', were randomized into a transtympanic group and a control group. Thirty-nine patients received conventional steroid treatment and 37 patients received 4 courses of additional transtympanic injections of methylprednisolone 7 days after conventional steroid treatment.
Results:
In the transtympanic group 45.9% of the patients had at least 15 dB improvement in pure tone average compared with 20.5% of the patients in the control group at the 8-week follow-up audiogram. In the transtympanic group 43.2% of the patients had an improvement of ≥ 15% in speech discrimination, compared with 17.9% of the patients in the control group 8 weeks after the treatment. The differences between the 2 groups were statistically significantly.
Conclusion:
The outcome was better for the patients with 'poor prognosis' ISSHL if the transtympanic steroid therapy could be applied early.

