What Researchers Did
Researchers pooled results from randomized controlled trials to see whether hyperbaric oxygen therapy (HBOT) improves hearing recovery in adults with sudden sensorineural hearing loss.
What They Found
This systematic review and meta-analysis of randomized controlled trials found that HBOT was associated with better hearing recovery than control treatments, with a mean difference in hearing gain of 10.3 decibels (95% CI, 6.5-14.1) favoring HBOT. Patients who received HBOT also had higher odds of hearing recovery, with an odds ratio of 4.3 (95% CI, 1.6-11.7) compared to control therapies. These results were based on data extracted independently by two researchers and analyzed using a fixed-effects model.
What This Means for Canadian Patients
For Canadian patients with sudden sensorineural hearing loss, this analysis suggests HBOT, used alongside standard treatments like steroids, was linked to greater hearing improvement in the trials reviewed. Patients experiencing sudden hearing loss should still seek prompt medical evaluation, since the abstract describes HBOT as part of a treatment approach alongside steroids rather than a standalone replacement.
Canadian Relevance
No direct Canadian connection identified.
Study Limitations
The analysis was restricted to English-language randomized controlled trials published between January 2000 and April 2020 and used a fixed-effects model, which may not fully capture variation across the included trials.