What Researchers Did
Researchers compared 51 noise-induced hearing loss patients who received HBOT against 43 who received conventional treatment only, following both groups for 12 months to track hearing recovery and quality of life.
What They Found
The HBOT group had a higher overall treatment success rate, lower rates of tinnitus and insomnia, and better hearing thresholds across all tested frequencies compared to controls (p < 0.05). At 12-month follow-up, the HBOT group maintained lower hearing thresholds and better quality of life scores, though recurrence rates did not differ significantly between groups.
What This Means for Canadian Patients
For Canadians who develop hearing loss from noise exposure, in industrial workplaces, construction, or military settings, this study suggests HBOT produces better long-term hearing outcomes than standard treatment alone. Given that noise-induced hearing loss affects hundreds of thousands of Canadian workers, timely access to HBOT after acute exposure could make a meaningful difference in long-term disability outcomes.
Canadian Relevance
No direct Canadian connection identified.
Study Limitations
This was a retrospective single-center study from China; HBOT protocol details were not fully specified, and the two groups may have differed in baseline hearing loss severity.