What Researchers Did
Researchers investigated how right median nerve stimulation (MNS) alone or combined with hyperbaric oxygen therapy (HBOT) - given during the first six weeks of MNS - affected brain blood flow in 41 comatose patients.
What They Found
Out of 41 patients, 29 showed increased cerebral perfusion, with 25 improving clinically and 13 regaining consciousness. Patients receiving MNS combined with HBOT were 4.40 times more likely to show overall improvement and 8.44 times more likely to have increased brain blood flow compared to those receiving MNS alone.
Canadian Relevance
No direct Canadian connection identified. Coma after acute brain injury is not a Health Canada-recognised indication for hyperbaric oxygen therapy.
Study Limitations
This study was not a randomised controlled trial, meaning patients were not assigned to treatments randomly, which could influence the results.