What Researchers Did
Researchers used functional MRI to study how hyperbaric oxygen therapy affected brain activity and hand movement recovery in one patient with severe chronic stroke.
What They Found
After 60 daily HBOT sessions, the patient's Fugl-Meyer assessment (FMA) score for motor function improved from 17 (severe impairment) to 31 (moderate impairment). Functional MRI showed increased brain activation in motor areas and a decrease in the lateralization index from 1 to 0.63, indicating more brain activity in the opposite hemisphere. The study also found increased connectivity between brain hemispheres and between different brain networks.
What This Means for Canadian Patients
This case report suggests that hyperbaric oxygen therapy might help improve hand motor function and brain connectivity in patients with chronic stroke, even years after the initial event. For Canadian patients living with long-term stroke-related disabilities, this could offer a potential new approach to rehabilitation, especially for severe upper-limb impairments. Larger studies would be required to determine if these benefits apply more broadly.
Canadian Relevance
No direct Canadian connection identified.
Study Limitations
The main limitation of this study is that it is a case report, meaning the findings are based on only one patient and may not apply to others.