What Researchers Did
This prospective study investigated the optimal hyperbaric oxygen therapy (HBOT) protocol for sudden sensorineural hearing loss (SSNHL) by comparing different pressure and duration settings in 112 patients.
What They Found
Among 105 patients who completed follow-up, groups treated with 2.5 atmospheres absolute (ATA) for 1 hour (group 1) or 2 hours (group 2) showed significantly higher word discrimination scores and mean gain compared to the group treated with 1.5 ATA for 1 hour (group 3).
The proportion of patients with hearing recovery was also significantly higher in group 1 (57.6%) and group 2 (58.8%) than in group 3 (31.3%), with no significant difference between group 1 and group 2.
What This Means for Canadian Patients
Canadian patients with sudden sensorineural hearing loss receiving hyperbaric oxygen therapy alongside corticosteroids may benefit more from higher pressure (2.5 ATA) treatments.
However, increasing the duration of treatment from 1 hour to 2 hours at 2.5 ATA may not provide additional significant improvement.
Canadian Relevance
This study has no direct Canadian connection as it was not conducted in Canada, nor did it involve Canadian researchers or patients.
Study Limitations
The study's findings are based on a specific treatment protocol and patient population, which may limit generalizability to other settings or patient groups.