What Researchers Did
Researchers conducted a long-term observational study of 50 patients with unilateral sudden sensorineural hearing loss (without recurrence) treated with IV corticosteroids, with pure tone audiometry follow-up averaging 5.26 years.
What They Found
54% of patients showed no change in hearing over time, 26% worsened, and 20% improved at long-term follow-up. The unaffected ear tended to worsen over time. Alcohol consumption and vasculopathies correlated with worse long-term outcomes.
What This Means for Canadian Patients
This long-term follow-up study helps Canadian audiologists and ENT specialists counsel patients that most cases of sudden hearing loss remain stable without recurrence over years. Patients with vascular risk factors or alcohol use require closer monitoring for hearing deterioration.
Canadian Relevance
No direct Canadian connection identified.
Study Limitations
HBOT was part of the initial treatment context in this paper but is not the focus; this was an observational study of natural disease history without a control group.