What Researchers Did
Researchers conducted a double-blind, randomized, sham-controlled trial to assess the effect of hyperbaric oxygen (HBO₂) on post-concussion symptoms in 50 military service members with mild traumatic brain injury.
What They Found
No significant differences were found between the HBO₂ group and the sham-control group on the PCL-M composite score (t=-0.205, p=0.84) or the ImPACT total score (t=-0.943, p=0.35) after intervention. Both groups showed significant improvement in PCL-M composite scores and ImPACT total scores over the study period (both p=0.001), indicating no specific HBO₂ effect.
What This Means for Canadian Patients
Canadian patients experiencing post-concussion symptoms after mild traumatic brain injury should be aware that hyperbaric oxygen therapy may not offer additional benefits compared to sham treatment. Current evidence suggests that other established therapies for concussion symptoms should be prioritized over hyperbaric oxygen.
Canadian Relevance
This study was conducted in the U.S. and has no direct Canadian connection.
Study Limitations
A key limitation of this study is its single-center design, which may limit the generalizability of the findings.