What Researchers Did
Chinese researchers reviewed published studies on how HBOT works as a treatment for idiopathic sudden sensorineural hearing loss (ISSNHL), sudden unexplained hearing loss, and summarized the evidence for its clinical use.
What They Found
HBOT combined with conventional treatment (steroids and neurotrophic drugs) can reduce inner ear swelling, improve blood circulation to the cochlea, and suppress inflammation. Studies consistently show that adding HBOT to standard therapy produces better hearing outcomes than standard therapy alone, though the review does not report a single pooled effect size.
What This Means for Canadian Patients
For Canadians who experience sudden hearing loss, a condition that must be treated within days for best results, adding HBOT to steroid treatment may improve the chances of recovering hearing. Patients should act within 72 hours of onset and ask their ENT specialist whether HBOT is an option at their local center.
Canadian Relevance
No direct Canadian connection identified.
Study Limitations
This is a narrative review without a formal meta-analysis, so the strength of evidence cannot be quantified, and individual study quality is not assessed systematically.