What Researchers Did
Doctors reported a rare case where a patient being treated with HBOT for sudden hearing loss developed air bubbles inside the inner ear's membranous structures, causing total deafness.
What They Found
The patient developed complete hearing loss in the affected ear as a complication of HBOT. They were subsequently fitted with a cochlear implant, which restored hearing to a pure-tone average of 30 dB and achieved 100% speech discrimination at 70 dB, a successful rehabilitation outcome despite the serious complication.
What This Means for Canadian Patients
For Canadians receiving HBOT for sudden hearing loss, this case highlights a rare but serious complication where air can enter the inner ear, potentially worsening the very condition being treated. Patients should be informed of this risk, and clinicians should monitor carefully during treatment.
Canadian Relevance
No direct Canadian connection identified. Sudden sensorineural hearing loss treated with HBOT is not an OHIP-covered indication in Ontario.
Study Limitations
This is a single case report representing an extremely rare complication; it cannot be used to estimate how often this occurs across HBOT patients treated for hearing loss.