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Intratympanic dexamethasone injection for refractory sudden sensorineural hearing loss
Yun-Hoon Choung1, Keehyun Park, You Ree Shin
1Department of Otolaryngology, Ajou University School of Medicine, Suwon, South Korea. yhc@ajou.ac.kr
The Laryngoscope
|May 3, 2006
Summary
Intratympanic dexamethasone injection (ITDI) offers a simple and effective treatment for sudden sensorineural hearing loss (SSNHL) unresponsive to oral steroids. This therapy improved hearing in 39.4% of patients, suggesting its potential as a valuable option.
Area of Science:
- Otolaryngology
- Neurology
- Pharmacology
Background:
- Sudden sensorineural hearing loss (SSNHL) is a critical condition requiring prompt and effective treatment.
- Patients refractory to initial oral steroid therapy often have limited subsequent options.
- Intratympanic dexamethasone injection (ITDI) presents a potential alternative for managing treatment-resistant SSNHL.
Purpose of the Study:
- To evaluate the efficacy of intratympanic dexamethasone injection (ITDI) in patients with sudden sensorineural hearing loss (SSNHL) resistant to oral steroid treatment.
- To compare hearing outcomes in SSNHL patients treated with ITDI versus a control group receiving no further treatment.
Main Methods:
- A case-control study involving 66 patients with SSNHL refractory to oral steroids.
- Prospective treatment of 33 patients with ITDI over two weeks (four injections).
- Retrospective data collection from a matched control group who received no additional treatment.
Main Results:
- Hearing improvement (defined as >10 dB PTA) was observed in 39.4% of patients receiving ITDI, compared to 6.1% in the control group.
- Five patients (38.5% of responders) achieved >20 dB hearing improvement.
- Partial frequency improvement was noted in additional patients, indicating varied response patterns.
Conclusions:
- Intratympanic dexamethasone injection (ITDI) demonstrates potential as a simple and effective therapeutic option for sudden sensorineural hearing loss (SSNHL) refractory to oral steroids.
- ITDI may offer a viable salvage treatment for patients who do not respond to initial conventional therapies.
- Further research may explore prognostic factors influencing ITDI response in SSNHL.
