What Researchers Did
This retrospective and prospective study investigated the efficacy of intratympanic steroid (ITS) therapy as a salvage treatment for idiopathic sudden sensorineural hearing loss (ISSNHL) after initial intravenous steroid (IVS) treatment failed.
What They Found
In patients treated within 30 days of onset, the group receiving intravenous steroids and hyperbaric oxygen (A group, 31 patients) showed remarkable recovery in 3.2% and mild recovery in 19.4%. The group additionally receiving intratympanic steroids (B group, 29 patients) demonstrated complete recovery in 17.2% and mild recovery in 10.3%.
What This Means for Canadian Patients
For Canadian patients experiencing idiopathic sudden sensorineural hearing loss that does not respond to initial intravenous steroid treatment, adding intratympanic steroids might offer an improved chance of hearing recovery. This suggests a potential additional treatment option for those who have not benefited from standard therapies.
Canadian Relevance
This study has no direct Canadian connection as it was conducted in Japan.
Study Limitations
The study's retrospective and prospective design, comparing different treatment periods, limits the direct comparability and generalizability of the findings.