What Researchers Did
Researchers conducted an extended follow-up of a randomised controlled trial investigating hyperbaric oxygen for persistent post-concussive symptoms after mild traumatic brain injury.
What They Found
Of 71 original participants, 42 consented to extended follow-up, with 40 completing a 24-month visit (59% response rate) and 14 completing a 36-month visit (20% response rate). At both 24 and 36 months, there were no significant differences between the hyperbaric oxygen and control groups, with mean scores for symptoms returning close to pre-intervention levels.
Canadian Relevance
This study has no direct Canadian connection.
Study Limitations
Key limitations include low participant retention for extended follow-up, potential selection bias, and the possibility of waning treatment effects.